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sudoku-instances.hh
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Mikael Lagerkvist <lagerkvist@gecode.org>
5 * Guido Tack <tack@gecode.org>
6 * Christian Schulte <schulte@gecode.org>
7 *
8 * Copyright:
9 * Mikael Lagerkvist, 2005
10 * Guido Tack, 2005
11 * Christian Schulte, 2005
12 *
13 * This file is part of Gecode, the generic constraint
14 * development environment:
15 * http://www.gecode.org
16 *
17 * Permission is hereby granted, free of charge, to any person obtaining
18 * a copy of this software and associated documentation files (the
19 * "Software"), to deal in the Software without restriction, including
20 * without limitation the rights to use, copy, modify, merge, publish,
21 * distribute, sublicense, and/or sell copies of the Software, and to
22 * permit persons to whom the Software is furnished to do so, subject to
23 * the following conditions:
24 *
25 * The above copyright notice and this permission notice shall be
26 * included in all copies or substantial portions of the Software.
27 *
28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
32 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
33 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
34 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 *
36 */
37
38namespace {
39 extern const char* examples[];
40 extern const unsigned int n_examples;
41 int example_size(const char *s);
42 int sudokuField(const char *s, int n, int i, int j);
43
52
54 const char* examples[] = {
55 // 0
56 "...2.5..."
57 ".9....73."
58 "..2..9.6."
59 "2.....4.9"
60 "....7...."
61 "6.9.....1"
62 ".8.4..1.."
63 ".63....8."
64 "...6.8..."
65 ,
66 // 1
67 "3..9.4..1"
68 "..2...4.."
69 ".61...79."
70 "6..247..5"
71 "........."
72 "2..836..4"
73 ".46...23."
74 "..9...6.."
75 "5..3.9..8"
76 ,
77 // 2
78 "....1...."
79 "3.14..86."
80 "9..5..2.."
81 "7..16...."
82 ".2.8.5.1."
83 "....97..4"
84 "..3..4..6"
85 ".48..69.7"
86 "....8...."
87 ,
88 // 3
89 // Fiendish puzzle April 21 2005 Times London
90 "..4..3.7."
91 ".8..7...."
92 ".7...82.5"
93 "4.....31."
94 "9.......8"
95 ".15.....4"
96 "1.69...3."
97 "....2..6."
98 ".2.4..5.."
99 ,
100 // 4
101 // This one requires search
102 ".43.8.25."
103 "6........"
104 ".....1.94"
105 "9....4.7."
106 "...6.8..."
107 ".1.2....3"
108 "82.5....."
109 "........5"
110 ".34.9.71."
111 ,
112 // 5
113 // Hard one from http://www.cs.mu.oz.au/671/proj3/node5.html
114 ".....3.6."
115 ".......1."
116 ".975...8."
117
118 "....9.2.."
119 "..8.7.4.."
120 "..3.6...."
121
122 ".1...289."
123 ".4......."
124 ".5.1....."
125 , // Puzzle 1 from http://www.sudoku.org.uk/bifurcation.htm
126 // 6
127 "1..9.7..3"
128 ".8.....7."
129 "..9...6.."
130 "..72.94.."
131 "41.....95"
132 "..85.43.."
133 "..3...7.."
134 ".5.....4."
135 "2..8.6..9"
136 , // Puzzle 2 from http://www.sudoku.org.uk/bifurcation.htm
137 // 7
138 "...3.2..."
139 ".5.798.3."
140 "..7...8.."
141 "..86.73.."
142 ".7.....6."
143 "..35.41.."
144 "..5...6.."
145 ".2.419.5."
146 "...8.6..."
147 , // Puzzle 3 from http://www.sudoku.org.uk/bifurcation.htm
148 // 8
149 "...8....6"
150 "..162.43."
151 "4...71..2"
152 "..72...8."
153 "....1...."
154 ".1...62.."
155 "1..73...4"
156 ".26.481.."
157 "3....5..."
158 , // Puzzle 4 from http://www.sudoku.org.uk/bifurcation.htm
159 // 9
160 "3.5..4.7."
161 ".7......1"
162 ".4.9...3."
163 "4...51..6"
164 ".9.....4."
165 "2..84...7"
166 ".2...7.6."
167 "8......9."
168 ".6.4..2.8"
169 , // Puzzle 5 from http://www.sudoku.org.uk/bifurcation.htm
170 // 10
171 "...7..3.."
172 ".6....57."
173 ".738..41."
174 "..928...."
175 "5.......9"
176 "....936.."
177 ".98..715."
178 ".54....6."
179 "..1..9..."
180 , // Puzzle 6 from http://www.sudoku.org.uk/bifurcation.htm
181 // 11
182 "...6....4"
183 ".3..9..2."
184 ".6.8..7.."
185 "..5.6...1"
186 "67.3.1.58"
187 "9...5.4.."
188 "..6..3.9."
189 ".1..8..6."
190 "2....6..."
191 , // Puzzle 7 from http://www.sudoku.org.uk/bifurcation.htm
192 // 12
193 "8....1.4."
194 "2.6.9..1."
195 "..9..6.8."
196 "124.....9"
197 "........."
198 "9.....824"
199 ".5.4..1.."
200 ".8..7.2.5"
201 ".9.5....7"
202 , // Puzzle 8 from http://www.sudoku.org.uk/bifurcation.htm
203 // 13
204 "652.48..7"
205 ".7.2.54.."
206 "........."
207 ".641...7."
208 "....8...."
209 ".8...456."
210 "........."
211 "..86.7.2."
212 "2..89.751"
213 , // Puzzle 9 from http://www.sudoku.org.uk/bifurcation.htm
214 // 14
215 "..6..2..9"
216 "1..5...2."
217 ".473.6..1"
218 ".....8.4."
219 ".3.....7."
220 ".1.6....."
221 "4..8.321."
222 ".6...1..4"
223 "3..4..9.."
224 , // Puzzle 10 from http://www.sudoku.org.uk/bifurcation.htm
225 // 15
226 "..4.5.9.."
227 "....7...6"
228 "37......2"
229 "..95...8."
230 "..12.43.."
231 ".6...92.."
232 "2......93"
233 "1...4...."
234 "..6.2.7.."
235 , // Puzzle 11 from http://www.sudoku.org.uk/bifurcation.htm
236 // 16
237 "....3.79."
238 "3.......5"
239 "...4.73.6"
240 ".53.94.7."
241 "....7...."
242 ".1.82.64."
243 "7.19.8..."
244 "8.......1"
245 ".94.1...."
246 , // From http://www.sudoku.org.uk/discus/messages/29/51.html?1131034031
247 // 17
248 "2581.4.37"
249 "936827514"
250 "47153.28."
251 "7152.3.4."
252 "849675321"
253 "36241..75"
254 "1249..753"
255 "593742168"
256 "687351492"
257 ,
258 // 18
259 // The following minimal 25*25 Sudokus are from Alain Frisch
260 // Sudoku website http://www.eleves.ens.fr/home/frisch/sudoku.html
261 "...G...9..4.....6F..L8..."
262 "CEIN.HDM.OF.1L..A..9PJ.4."
263 ".....A...L..JBN.2.D.1...H"
264 "P49...JB23.AD..7E..C5F..."
265 "A1H....F.N5....I.BL...26."
266 "....7..C.6...H4B..1....I5"
267 ".F.P...I..B..7.5.L...9..."
268 ".L6A...5OF.8P...K.NE..734"
269 "B2.E..L...1J.5....O7.K.AP"
270 "O.5.CB1.P....3EM....2L.H."
271 "2..MJ.A...9.3.7......P.8C"
272 ".....CF.DPG62N.E...OH.M.J"
273 ".DL..OM..IE.B8..NH...3..K"
274 ".CO1F.B.N.AH..P.78.JE...D"
275 "E..6.....H......4M.KIB9.."
276 "N.J..6......C..1.5.G..H.."
277 "...75LG...6..1..CI..4.E.."
278 "9K..6.....HGN.O2P.4......"
279 ".OA..IP849...2.K3...7GN.."
280 "..G....N...P.D9....A...C1"
281 "J...M.NAFE.4..23.7....8L."
282 ".....J.H9CD1LP..GO....4ME"
283 "48NK..5.M......JL.......9"
284 ".I.OG....835.A.DH..P....."
285 "35......L.J..E....8IG.67B"
286 ,
287 // 19
288 ".N..JG..O7591...8I....L.."
289 "FG.M.B8...P.E...CJ..H...."
290 "...........G.4.H.D.O.NJA2"
291 ".....J.EN4.L6MA.B.2......"
292 "HE..2..DC.....F4KMA.B.9O8"
293 "M....62...47C19......E5.."
294 ".I2.8M.JGL...ADN..K..3.F7"
295 "..H3.5..89....I.J.....NL."
296 "1B..9.FAP.6.N....537.H..O"
297 "......1..N...O...LC.68.PG"
298 "KOA.FNBH.....7.C.....M..6"
299 "45.ECP.I..N.F.J1...MK.79."
300 "I.L..8.O..9.P...A...2.1J."
301 "..621.D.M.....B8LG..P..CH"
302 ".HP.N7E.L1....3..B..O.G45"
303 "....BIO....5.C.P...FN48E."
304 "...FL.....2.DH..17..59O.."
305 "..I.MF..2G.N...A6O.HC.PB."
306 "72.1..L...IM.96E.45G....."
307 "..9...7M..A.O...I...L...."
308 ".C.JA.........1.....E.48."
309 "O.BI.......PHL.6..1....5C"
310 "G6M...N4FI8...K..H.E....."
311 ".L..4.917....BE.G8F.M.I.."
312 "8F......5.O3..4...9.....K"
313 ,
314 // 20
315 "5.PC..7..J..I...3..H.M.2L"
316 "H.......F..DA..N.G...9..P"
317 "...3LCP2.54.71.B....J.8.."
318 "76M8...3A...H..C.D.FO...."
319 "...DK..GI..B.L.6.8.14...."
320 "A......M....D.6.N.P....O2"
321 "...E5BLF..92..3AJC..6I..."
322 ".PNJ.6..E7A.8..IM.OL1.G.C"
323 ".L3...O.N.5.KI.46.....9E."
324 ".I.G.A..28.MBP...E..HJ3.7"
325 "J.74.L..D1O96.A3.M...GI.."
326 "E...1...K....J...P6.7.C.9"
327 "8M..A9JO.F.P..1...4.E3N6."
328 "...I.3.7.......EL.CD..H.."
329 "....DE2..P...N.........K."
330 ".O.7.FKI1..GJ.N.....9.P8."
331 ".89..H..BNM73D.KFJ..I.6.A"
332 "PDBN...9M..C.....O.6..7.."
333 ".F.K...4..LA9B..C.E75..GN"
334 "G.A.....7.8.....H....O.3."
335 "B...C...4......8K.3.P...."
336 "DHE5..FA...J.3..B.2.KC.98"
337 "...F...5....N..J9......I."
338 ".J...P..O.BK....I.M.3..5."
339 "9...8.B.6.D.M.I..H.5G.J4."
340 ,
341 // 21
342 "..6F.....5..3.....H..A.M2"
343 ".....3....I8.A.MC.KJ.LNG."
344 ".I.7N..K.2..6...3D..B.O85"
345 ".3A.PF.D8OBK7.2....L6.9H4"
346 ".K..CBML.....O.A8.G4.D..."
347 "1.4.AGL..M5..F.O.9....P2."
348 "..I.........8......N4E..."
349 "J.C8.1.6.3.LO.K7AG2P9.H.."
350 ".2.3BH..9.A...G......O..L"
351 ".H..M8.J.....NI1.LEF....B"
352 "I5..4.....G.27..K..3.M..H"
353 "P..E..I.A..3B.8....G.2..."
354 "AJ......NFK.I.O9476..G.1."
355 ".976...E3H....M5.F......O"
356 ".F.M3.5.GKC4.HJ.N.....ID7"
357 "..L1K..9.J37.ID..B..E6..."
358 ".82OH.1..PNML...E..C...J."
359 "....JLFN.B..G..6M..H..D.9"
360 "...C.A...I.6.......K.5..."
361 "E.G.I.....O....J.8F......"
362 "..M4..9.D.7.K.FE.3O......"
363 "H.N.....14E..B3L..8I...AG"
364 "K.O.62.PM...N..H...18C.9."
365 "LC..8.3...2...H.G...J..4E"
366 ".B..9NK.E....C6.P.4D.71OI"
367 ,
368 // 22
369 "A..F.N......M28DC.LI7..OJ"
370 "..B...D.M.6....9.....2A.."
371 ".2..I.56.B...J.MEH......."
372 "O7...HE...BA..G2........L"
373 ".H6J.2...G.7NDP.A...8..C."
374 ".PN35..B..869.2.GA..K.C.."
375 "....EM13OD.N...49K...7..."
376 "9G..C....IJF5.B..7.3....."
377 "HD.....JN....7...EF....9."
378 "1.OA..G.KL....H..B.CP...."
379 "..CE.......2..9I....3...."
380 "FJ..83P.E..K7.NL15H..I2.."
381 ".4..GJ...6DIB...P...AHL.C"
382 ".1I.2.M....83.F..4.NBE..."
383 "L3M.OD.H.AG..4.....69...F"
384 ".8...5H.3.....M...D..K..4"
385 "3..4..AEDO7J...5..9..G1.."
386 "..2N9.8F.P.OIGC.L6..E.H.."
387 "C...1.7..K.L6.4EO.8.5...N"
388 ".IG.H..M..E...1A2N4..8.F."
389 "6..5J..N1...2..H.IGA...P8"
390 ".L...O...H...C....M5G..A."
391 "..F...3C.7.P..5N..B..DMH9"
392 "291D..6..M..H.7.3.J.N..B."
393 "....MK..29F.G.DO4...6.E35"
394 ,
395 // 23
396 "....B12O3..D..F..KPL.E4.7"
397 "1M..GL..H..K.A.....39.P.."
398 ".8.3.4.....7..6.F.....CK."
399 "P.O...758.2..MC.....1L.A."
400 "...HFK6.A..8...9B...2...J"
401 "91.KJE..L.5O..GD.....4..."
402 ".I..3..D.2.....C4MLAK..N."
403 ".4..6IA.P7.....B9......3."
404 "M.F...4.J...8....N.H.1G7."
405 "..5P.N.....C.731.I.E.9A.."
406 ".....GO.KDL......BA......"
407 ".3A..F...9..K.EI5.7..6.DN"
408 ".G.54.L.....PH..3F6....2."
409 "....P.....G..2D.OH.1B...C"
410 "6.EM.7N....3.B4..DC..K1P."
411 "B.9.....I..5N...7OGK...46"
412 "OF.GD6HP..JM..BA8.I.C...."
413 "8.L7...........P.3M5...92"
414 ".EM.....45IF7....2.CJ8DL."
415 ".6.4.8..NA.2......9....GI"
416 "2..A1DCN..3G.F5.L..I..O6H"
417 "..BIO..1.H.L...G........."
418 "C.P.....M8.9O..5A..N.JK.D"
419 "H...N...FOA4..73....5..CM"
420 ".D4..3...6BE..N.2JH8..L.."
421 ,
422 // 24
423 "LJ.FH2...K....359.E.B6.N."
424 "...EML1FC.PJ.A.8I....2.K4"
425 "9........G1..6..K...PAL3C"
426 "P...C34..8.N7.........DE."
427 "...7....E..IO...124.J5.F."
428 ".8.L.PA.2..31FG....N..C.I"
429 "F.G......M........2.K..1."
430 "....2KH6.JOD..9.L..G...B."
431 ".6O3..G...4.NJ.H.PB...5.9"
432 "I...K..LBN...E.76.A....8."
433 "D.B.L......8.3.C.KM.6...."
434 ".C593.I.N4.26MB..1..L.K.."
435 "M.F6......DA45.9..N.I3..B"
436 ".G..79.H...KJ...4...AN.2."
437 ".KH...BC....LON..7..D.8.F"
438 "2..B...MP....7OEJ4....6.1"
439 ".4....2O.9......N..1....G"
440 ".....G.JF.2..L.6.5......."
441 "C9A.G...H1...PJ..L.3.8.MN"
442 "...1......M.....O.P8.K3J."
443 "...N.HP.K25G3..JC8..1M..."
444 "..2K.FC34.A....N7..9.LB.."
445 "..65DJ..L..C.4.1...BGF..."
446 "OF..E..7.B.......634...D."
447 "G.3..N.I9D7PM8KF2....4..."
448 ,
449 // 25
450 ".1..I8.P..6.N...BD...3O.."
451 ".9.6...E.M43.8..AK.2J.1.."
452 "...JKL...FA...P.I4...DB.."
453 "E...P.I.B.7.1..J.HC...98."
454 "..5M8GJ.KD.O...N3..1AI..."
455 "K.2C4.M.N..J..I.......H.5"
456 "N..B9O.D...KH6.E...C...7I"
457 "DE..JK4.....L.1B7..68PN2."
458 ".....P...C..F.7...L.O9..."
459 "...35.H......92..M.4.EC.1"
460 "P..IL..H.........1..3.D.."
461 "....B9..8.3I5.C...K...F1."
462 "FH....2O..D.4M.P...A...GC"
463 "JA.......KF.......4.EOMIP"
464 "3.7GNF...A.2OB9C.E5.HJ..."
465 "2.I.1.......AO5.P...K.3.."
466 "..H....L..M.CIJ..7...4..."
467 "GO.9..KF.I.P3...E.HJ...N7"
468 "5.37...B.E...4N..O.8....."
469 "4B...7.9O.HL..E2C3.K51.M."
470 "L.O42...D..AJ.8...GH.N..E"
471 "9M.8.H..LG1..N..5.E..F7B."
472 "......FAC..5M..I6J.B4...G"
473 "...F..82..P.E......36HK.L"
474 "B.J.G5...O.H2..98.7......"
475 ,
476 // 26
477 ".CNPHK.53.O9F..D.78..J..."
478 "J.....F.DB...7.G..PAE...L"
479 ".6.........5.4A......I..."
480 "A..L.6.E.1JG....5.H.2...9"
481 "..G4..P...E2N.M...C..FB.1"
482 "..PKJ...G41O..C.N..H....."
483 ".M..I5L97J.3H...E2.8...D."
484 "1.4..ON.83G.P.D59..C.BH.."
485 "..2.9.......4.F.3.6..O.7."
486 "3F.7.MEC..5...2..4K.LN8.."
487 "...I........MF7.6AOG..LE."
488 "C1.3..JG..D.9...4..N...68"
489 "...M7L9..NHA...FJ.I..3.C."
490 ".A...P...5...E3.8M..K4OFG"
491 ".....C.6KIP...8..3.DJ...."
492 ".2.J...3C..7.D.9A.EF6L..."
493 "4...3.6N.....L9.H..P8...2"
494 ".9.C.4H.......P....1..FJ3"
495 ".LD.K87.1.BM5AJN....4H.G."
496 ".B..MAI........47O.LD...."
497 ".G....3....F..1..9..M..K6"
498 "P7.A..B8.......2....I.3.."
499 "M..O....9K2..6..1.N.FE.L."
500 "....E...A..N.J.IG8...C.9."
501 "6KL.4...FCI.A.....5J.2D.N"
502 ,
503 // 27
504 "E..I...M......L....D...BK"
505 "F..BH9.K.A2.7..E4.P.6..M."
506 ".6.J..PD8FE.IM...K...54.."
507 "L...8E...IA..HC........7J"
508 ".....7H.4.JK..DOFC....9I."
509 "9...7A.5.B.M34E.KDJ8....."
510 "8...BD....O..7....CP.E.6."
511 ".1.3..8....D...2.ML.B..5A"
512 ".E2.A.O.7..1..I.659..8LD."
513 "KF..M2...PL......A.G..N3."
514 "...76N.1..CBG...DPK..O.J2"
515 ".JK...6B.9..P.7.N.EMFDG.5"
516 "N....G.F.8....OH9.2...E.7"
517 "....4.3....F9.....5.NC.A."
518 "M.A.GL.J......5..4.7.91.."
519 "C.8NE.5..6..M.....BJ17..H"
520 "7.6...NL.41.AC.I8...GJ3.."
521 "...53P.GM2.L..F.....K.68."
522 "J.4.D..H..IG..8K..35.N.FL"
523 "P.F...93.D.....A.1......M"
524 "..7.I...1...DF..PJ.4.MA.."
525 ".KN.....5H..O.63.E.2....4"
526 "....1...O..A2..DCH8B..KE."
527 "3.HA.6BP.....J1957O..28.."
528 "42JO.I...K5C......6.P.B.."
529 ,
530 // 28
531 "...G87..O..F.N..CH6..D..2"
532 "C16..N....DL.3.E........."
533 ".LN.EK..D..O.G6.412....5H"
534 "K...2........59M...P..3.."
535 "..A9.M.6....8.E7O3..K..LB"
536 "7..8B.1.EP.....4.L.6.C.9."
537 ".3.6...9.85.A2F.....B.EP."
538 ".D4K.L..NA....C.M.E..7..."
539 "L..P.3H.CG.7....DKF..I6.."
540 "5EH.G.7.6.1....J....D3K.O"
541 ".6.....G.K.E..I2.4J......"
542 "..ICFP.8H7.2.O.B.NM5..G.."
543 ".M..D9..BE..J..F..I7..LAK"
544 ".BE.L...31.M7FK..C9..8.DN"
545 ".2O......D38C...E...F.P.."
546 ".A.....M..NB..3.J.7E8..2."
547 "...O...B..6..C.8KG4..5D7M"
548 "....M8..I..9..AL1.O.3HBNG"
549 ".C..4....L.....D.F......."
550 "J..5NF..G...H..6..C..1..."
551 "D..N..O....G9.J.A..I...8."
552 ".F.H1BN.K.O.4.8.6.3.9.M.."
553 "B...I....9K..6..2...G.H1."
554 "O...7.CJMI25N...HDKBPFAE."
555 ".....28.F..C........O.JK."
556 ,
557 // 29
558 "9.K..6D.I5...........H..."
559 ".I.E..BK...GN...6.L...3.."
560 "7....2..L8E.K.D1.P5I.6..A"
561 "..N.LEH.A32..CM9........."
562 "..2....9N...3.IC...J.KF8."
563 "......GA..C.7JPNI3....6L."
564 "....E.J.8K..I.....97NG2.B"
565 "O7..3HI...M.....DCF5..914"
566 "L.M.4.3.19.D..2......F.K."
567 "B....F...O9.6ANG.2.PH.E.5"
568 "8KDM...5.1....G......P..6"
569 ".4.H.L.C..J2....G..3ION.."
570 "C.A..J..E...1K......92.5."
571 ".9O.NP.2...IA....H..G..7."
572 "...I5..O.N4.H...2DCKJ...E"
573 "56....1.D..AJ.....7.L.O.."
574 "K.8.H.7.9.5....AC..O..G6F"
575 "3..........O..C.F.P6K.5.."
576 "...OC.4J2.3E.9...N.H7..P1"
577 ".B.7.K.....6.MH.LJ..A...."
578 "I..4.........P..E7D9O.B.H"
579 "E.3G.OP...I1CBL..FN4..82."
580 ".A..9N.8.E...73O..H....4."
581 ".M.C.3....DK..EI......JG."
582 ".HP..D..FB...NO.1KJ8.AL.."
583 ,
584 // 30
585 "....L.1.8H.CO..P....FA..."
586 "P1.2.4CO...K..A..3H8...7."
587 "I..H.G.5.B.6.M..A24.K..9."
588 "....6I.KF9..5.P.J1.BDCE.M"
589 ".A....2...F..L..E.M.6.5O3"
590 "7..1.C...8.L9..4P.5.G.K.."
591 "JO.5H.M2.I.7.F.6D..A4..NE"
592 "E.3.NO....K2...LG..7JM..."
593 ".9F.CJ.H....A.NKB.1..2.5."
594 "2LB...5..7.P36H.M..N...1D"
595 ".....P..B....46.HJ......."
596 "B4..7LI.C.GD2...KA.3H...."
597 "K5......6J1.........27O8P"
598 "LP...5K.G..JB3.......1.M."
599 "..EG...4.F.NKC...O..9.B.."
600 "..MI...D32AGP..5O...74.BN"
601 "FC74.....1..LO..8...5.D.J"
602 "..JN....H...E.I...DPA3.6."
603 "AE.......O3F..5.........H"
604 "...8..6......24.9G....I.1"
605 ".M....8.9..O1.F.C.EL3...A"
606 ".N...E.3.....I7M1...ODG.K"
607 "1......P.N9..D..5........"
608 ".I.P..FGOCMA.......J.5..2"
609 ".GK....7...3.....92..B.L4"
610 ,
611 // 31
612 "...H....GKM.43..B.D......"
613 "15I.C....8B.6D.7G....A.H4"
614 ".7...F..B...J.E16.N....3."
615 "...D.1...6L7.H.5K....P98F"
616 "KJ.AF.5CHO...NP2M.....B.."
617 "4..K..I9.M.DNP..A.3..E5O6"
618 "PGC...HE.....I5..M...7..J"
619 ".B.EJ..G.5..L....D.48.2.."
620 ".D....N.4.J.2A..H..5..F1."
621 "8....AJLD.7..OM...1B....P"
622 "CH...N..7.........B3....."
623 "I..O.JL..P5...3......KH.8"
624 "D.259.E......6.......L3.."
625 "...3K6.B.AE..74N25H..G1.."
626 ".L.B..41.HC...G.OIP8..MN7"
627 ".........2.C.4.L....69.I5"
628 "N...7.C...69.5.A......PKL"
629 "....L.G...13.BOMP.82..D7H"
630 "...C.H..5.P.E.K...I7....."
631 "JO..P.96ABI8.....C..N..4G"
632 ".NA8H.32..O4..IB..L9G..J."
633 "..4.GD..M.3..27INJ.O....."
634 ".C9L..A..J.....6.2..I..F."
635 "BK...4..F.A.CL..87.1.O.M."
636 "6..P.I.5...M..N....F....D"
637 ,
638 // 32
639 ".6OL.3GB.I.1F.EP..9..24.."
640 "..1.P.....K....N.2.....ID"
641 "2.8.K7..J...6..1F.......A"
642 "...D.8.4..29..LJ7.HMKPF.."
643 "..I.9N...A..P.M.DK...E5.."
644 "94.N...5..F..E.C182..BG3."
645 "8D..3HC....6G.....P.F.72I"
646 "C..I.E.7D....8BG.F...6..."
647 "......L....N.24..I..1K.DJ"
648 ".27HG.NF......I..L..E.A.."
649 "L...N.I8F6.H.9K.3O..B..5P"
650 ".9...L..25.B14F.N.JE...7K"
651 ".1...9B....GJ.8.A.5C....."
652 "....CPK..J....5.M.7.6.H.3"
653 "..F7..3..O..N..B8....421."
654 "AM.8....P...71..26N...3G."
655 "P....D.2.78.O..5CJ.GA.BH."
656 "6..4.F...3...K9A..1...J.M"
657 ".I2.E......JM.N...B98..P."
658 "FC..7..6.EI.D.G...3H5..KN"
659 "I8NO.4F.9..DB....5......."
660 "5..1...G3.MIH.A.9..N....."
661 "KG.62..1.....L3.....IJE.F"
662 "....D.6.AC4.9.....OL.HP.."
663 "..EA.5O.L.6.......D...9N."
664 ,
665 // 33
666 ".CH3.L..D4F..I.........1."
667 "G..K.....7.O.......L.42N."
668 "A.D...5O8B...39G.4..I...L"
669 "1E2OB....A8N..6FCD9.H...G"
670 "IN..4..3.....J..5OM....9."
671 "...JEMP..9G8..D7......BA."
672 "B.M9..L....6...2.FI.KJ..."
673 ".LN.386A..BH....O.J.2..7."
674 "7A6..2..3N.....4KP..G8HIC"
675 ".1.....J.CK3....HB..5L4.."
676 ".H......P.I.57....G..21B4"
677 "....7.....EP1....3.2..A.."
678 ".59.1FI.L8.MJG.B..AH....E"
679 "NI..D....O3K..A.P9..8F..."
680 ".O....A..E2.8.HN.J7.P...."
681 ".MC..P....H2...A7..ID...1"
682 ".6.....M.J.14.BDG.3.O9F2."
683 ".......CG.........4...M.."
684 "HDL...8N7.......FK2C.E..B"
685 "..KP2I.F.3...N7J.E.6..L85"
686 "D.E...C.4.7B..I....A.1..M"
687 "J..M..7..D.A..4...ONBG..2"
688 "9.7.6..K..P..O....D...8.."
689 ".2IN..GE1.D..8...MK.CPJH."
690 "FG..8B.2.L..KH.....1.5E..",
691
692 // 55 16x16 instances (mostly harmless) from janko.at
693
694 // http://janko.at/Raetsel/Sudoku/301.a.htm
695 // 34
696 "D92.....G...43.."
697 "4CF.....9D.2.6EB"
698 ".E.1....F.8BC..A"
699 "G56.....A3C....1"
700 ".7G5A8....61...."
701 "2...C....B7....."
702 "..AE.964..G....."
703 ".F9.5.7.4......."
704 ".....29....A.C.."
705 "........645D.1.."
706 "....D....1.C.B7F"
707 ".....E.C2G...8A9"
708 "B..9.G52.....EF6"
709 ".256..F.....D.B."
710 "E13.6.D........7"
711 "A...8BC3....954."
712 ,
713
714 // http://janko.at/Raetsel/Sudoku/302.a.htm
715 // 35
716 ".DG1.C.BE..3.4.A"
717 "..7B.62..41...59"
718 ".......D.....G.."
719 "..49.7.3.B6..FD."
720 ".9..G...C......4"
721 "G..46....9F.3.B."
722 ".C5.1...BE.86..G"
723 ".B.....E2G...D.."
724 "..3...596.....1."
725 "F..C2.76...B.E3."
726 ".1.8.4D....7F..5"
727 "E......F...D..9."
728 ".AB..FG.1.3.C8.."
729 "..2.....F......."
730 "8F...BC..62.97.."
731 "1.6.A..59.C.GB2."
732 ,
733
734 // http://janko.at/Raetsel/Sudoku/303.a.htm
735 // 36
736 ".....D.3..7F.A.."
737 "...B1.F8....26.."
738 ".F.3...6D..AC..."
739 "AGC.9.5..8....BD"
740 "E.FG5...7...A.9."
741 "2.7.....89A36.F5"
742 "...1.9...CBE...."
743 ".3....A.....BG2."
744 ".1B2.....7....6."
745 "....B16...3.9..."
746 "5D.4F3EA.....2.B"
747 ".E.A...9...D83.C"
748 "4A....B..E.8.FC9"
749 "...EA..G1...D.4."
750 "..GC....FD.B1..."
751 "..D.47..6.C....."
752 ,
753
754 // http://janko.at/Raetsel/Sudoku/304.a.htm
755 // 37
756 "....9...5...3B.."
757 "...D13.7.4.....F"
758 "637...2..81AC9.."
759 ".2G..5.......18D"
760 "...F4...3...8C.."
761 "E.D.7..6..G...A5"
762 "C5.6..3....F.2.."
763 "4.A...1D72.9..B."
764 ".E..D.9CA6...F.1"
765 "..9.5....E..D.26"
766 "B6...4..D..5.7.A"
767 "..F4...A...C9..."
768 "AB4.......2..G6."
769 "..68FBD..5...A47"
770 "1.....6.9.E4B..."
771 "..32...5...B...."
772 ,
773
774 // http://janko.at/Raetsel/Sudoku/305.a.htm
775 // 38
776 "..16.E.8.BF.4..."
777 ".5...9D......A73"
778 "..3...B.78.D.6.."
779 "......1...9...BE"
780 "C..1D..6B5..7.A4"
781 "...5.F.98..32.DG"
782 "3.....C..D.A5.E."
783 "....3B5.F7...9.."
784 "..5...6C.2AE...."
785 ".3.BE.2..4.....9"
786 "F9.2A..B5.7.G..."
787 "EA.G..756..BD..1"
788 "6C...8...9......"
789 "..9.6.47.E...D.."
790 "2GE......C6...F."
791 "...3.CG.2.D.65.."
792 ,
793
794 // http://janko.at/Raetsel/Sudoku/306.a.htm
795 // 39
796 ".....D5..7.169.."
797 "..4..2BE8.G..A.."
798 "8DA....752..BGF."
799 "G.9EA.86..3F2..."
800 "C..4G1.....7F..."
801 ".G.A...315.6..C8"
802 "E.5..F7.4G..1.A2"
803 ".91..BE...D.54G."
804 ".68D.3...C5..B9."
805 "4E.5..9B.31..F.G"
806 "3B..E.G1A...C.4."
807 "...95.....F83..7"
808 "...C9G..F1.5D8.B"
809 ".468..DFC....3E5"
810 "..2..E.A7DB..C.."
811 "..EFB.3..86....."
812 ,
813
814 // http://janko.at/Raetsel/Sudoku/307.a.htm
815 // 40
816 ".BC..32...9..D.."
817 ".3..CB...52A.9E4"
818 "7E.A...D8.6B2..5"
819 "..9F..A.DC7.B6.."
820 ".15..2.E..3...4."
821 "4GD81.3C...7..6F"
822 ".C.9....E.4.G..1"
823 "..E3..59G.FD.B.."
824 "..A.2E.FC9..84.."
825 "B..E.9.4....F.A."
826 "16..A...57.F3E9B"
827 ".9...6..4.E..7G."
828 "..64.C85.2..DA.."
829 "E..DB1.23...6.59"
830 "C5G.9D4...1E..2."
831 "..2..F...DA..CB."
832 ,
833
834 // http://janko.at/Raetsel/Sudoku/308.a.htm
835 // 41
836 "G.E37..1.....6.."
837 "96..E..3..G5D.F."
838 ".7..64.CF31..29E"
839 "....F...8.9E437."
840 "6AF...D.3..1...."
841 "..1...B5.8F47..3"
842 ".83B2.47.G....61"
843 "..79.6...EC..8.G"
844 "E.C..2A...8.FG.."
845 "25....C.GA.78B4."
846 "7..AD3F.24...E.."
847 "....G..B.1...C52"
848 ".4A2B5.D...8...."
849 "FE8..G2A1.73..C."
850 ".C.78F..4..2..E5"
851 "..9.....E..G34.8"
852 ,
853
854 // http://janko.at/Raetsel/Sudoku/309.a.htm
855 // 42
856 ".G.4..1E6.9...2."
857 ".D..4G.C.....9F7"
858 "..79.D...5C.B.G."
859 ".EFC7...G..D.5.3"
860 "5...C...E6BFD..."
861 "...1...5..D.CB.2"
862 "7.CG29.D3...E8.F"
863 "94...EGB.2.C...."
864 "....E.2.583...CD"
865 "3.D5...89.FB7G.E"
866 "4.1E.F..A...3..."
867 "...F1B3G...E...9"
868 "F.9.8..1...G23D."
869 ".A.B.4D...7.5F.."
870 "8CE.....1.25..7."
871 ".7...5.3F9..G.8."
872 ,
873
874 // http://janko.at/Raetsel/Sudoku/310.a.htm
875 // 43
876 "...4.1.9..7...B5"
877 "6E..2.8....CGA.."
878 ".51....B.D....6."
879 "B.9..E..G..A...7"
880 "..7.5F9G..48...."
881 "..29..3..F..5.7."
882 "G.BD...837.E..94"
883 "......7E.1.6A2G3"
884 "94GA7.2.63......"
885 "5B..A.E18...79.2"
886 ".1.8..6..4..BD.."
887 "....G8..EB92.4.."
888 "D...9..A..1..G.6"
889 ".3....4.C....1E."
890 "..4B6....E.7..2A"
891 "F9...5..A.3.4..."
892 ,
893
894 // http://janko.at/Raetsel/Sudoku/361.a.htm
895 // 44
896 ".G..5.2.E.FA.4C."
897 "AB..G....35.17D9"
898 "53..4AC..DB....."
899 ".6.C3B..2.8.5..."
900 "1...A....E.D9CG3"
901 "GDA9.4..B.1.6E.."
902 ".FB.1..E9....D.8"
903 "C..3.59G48......"
904 "......F38G2.7..4"
905 "6.3....A7..9.8E."
906 "..CE.9.1..4.DG35"
907 "89GD2.4....6...C"
908 "...G.C.4..958.7."
909 ".....1A..F78..42"
910 "4871.3G....2..9A"
911 ".C9.72.8.6.4..1."
912 ,
913
914 // http://janko.at/Raetsel/Sudoku/362.a.htm
915 // 45
916 "A...18..79..C..6"
917 ".37.A2...FD...E9"
918 "G14D..5...8C.A.."
919 ".268.E7.3A....D5"
920 "3...D1...7A2.8.4"
921 "7CF.9..4....D.2."
922 "5..63.A28...1CF."
923 "...1.6...3FD..5."
924 ".A..FC6...9.3..."
925 ".D2F...3A5.1E..8"
926 ".9.G....D..7.F1C"
927 "E.C.G9D...3F...7"
928 "17....9B.2E.43C."
929 "..9.E3...C..5D7F"
930 "FE...AC...G5.29."
931 "D..C..2F..73...E"
932 ,
933
934 // http://janko.at/Raetsel/Sudoku/363.a.htm
935 // 46
936 "3.8.BD..5F72E..6"
937 "..G..4.7E..6F5.."
938 ".AF.2..C....9G73"
939 "59C...FE.AG....."
940 "C5..1..F.4.G.E.7"
941 "F..2.C..B13...GD"
942 "4..B73.D....C..."
943 "GD...A...C.7B48."
944 ".G5FD.3...9...BE"
945 "...C....6.E1G..9"
946 "28...7E1..B.6..4"
947 "1.B.5.C.3..8..AF"
948 ".....ED.16...345"
949 "9C21....7..A.8E."
950 "..EA9..3F.8..7.."
951 "6..5827A..4D.F.C"
952 ,
953
954 // http://janko.at/Raetsel/Sudoku/364.a.htm
955 // 47
956 "1.....6C.4G.9BA."
957 ".G6..F.9A.D1...2"
958 "...D7G.3F...41.."
959 ".3A.2..1.759.E.G"
960 "B8..D.F.C.2.A..."
961 "C....1..DBFA2..5"
962 "..FG.E.....58C9."
963 ".25A3.C.G..E...1"
964 "3...4..B.G.DE78."
965 ".C78A.....3.12.."
966 "5..1FC37..E....9"
967 "...4.2.8.F.B..CA"
968 "A.4.6B7.5..F.9D."
969 "..8C...DB.975..."
970 "9...85.E3.A..46."
971 ".5D7.A9.E2.....8"
972 ,
973
974 // http://janko.at/Raetsel/Sudoku/365.a.htm
975 // 48
976 "..D.2...5A1....F"
977 "E21F..9..6.D...G"
978 "7A.9G1..2E.4D..8"
979 ".B64.3FA...8.E.2"
980 "...3...F...G2A.."
981 ".F7...5.8D4.B.3."
982 "4....C.....F8.D1"
983 ".G....B3A2.....6"
984 "3.....4CF8....6."
985 "94.B1.....D....E"
986 ".C.A.E8D.B...15."
987 "..G8B...1...C..."
988 "B.A.8...6F2.3DE."
989 "2..16.E5..A39.84"
990 "6...9.3..5..1C2B"
991 "8....D12...9.6.."
992 ,
993
994 // http://janko.at/Raetsel/Sudoku/366.a.htm
995 // 49
996 "3....2A.4F.6..G1"
997 "ADF4..3..5....E."
998 "..5G..1E....FAB."
999 "..E.GF75..B..93."
1000 "B...17...A629..."
1001 "...EFG..7.516..C"
1002 "63..D...G...E42F"
1003 "2....8639...1G.."
1004 "..B8...76G2....E"
1005 "5C32...4...E..1G"
1006 "G..62E.9..D4B..."
1007 "...D5CG...A3...7"
1008 ".G7..5..84F9.B.."
1009 ".F6B....5E..21.."
1010 ".5....B..6..7EF9"
1011 "E4..A.9F.BC....5"
1012 ,
1013
1014 // http://janko.at/Raetsel/Sudoku/367.a.htm
1015 // 50
1016 "B........45DC.6A"
1017 "4.F...639.CA.E.."
1018 ".9A...CD26.8F1B."
1019 "6.C3.7.8.F..9..."
1020 "D68.E..B...5...."
1021 "73...8A5..9.2..."
1022 "A.G1..9..26..D8."
1023 ".C9.......81A6E."
1024 ".574FA.......G1."
1025 ".AD..37..G..4F.E"
1026 "...9.G..452...CD"
1027 "....B...F..9.725"
1028 "...B..G.C.F.12.9"
1029 ".16AC.5FG3...8D."
1030 "..2.36.759...C.F"
1031 "F8.C194........6"
1032 ,
1033
1034 // http://janko.at/Raetsel/Sudoku/368.a.htm
1035 // 51
1036 "C..B61..G...F.AE"
1037 "4E8F...A.....DG."
1038 ".D..F3.E1.5A..6."
1039 "5.....GBE9FC..82"
1040 "..5EB.D8...1.F.6"
1041 "..AD.72...6..3.8"
1042 "...3..E.9FB85..."
1043 "6.B4..1....2CAE."
1044 ".3E9C....G..D1.7"
1045 "...CEG3D.7..A..."
1046 "A.F..B...CD.EG.."
1047 "D.7.1...B2.348.."
1048 "FG..8EB17A.....3"
1049 ".4..D6.G3.CE..5."
1050 ".62.....D...74CA"
1051 "3B.A...4..9F8..G"
1052 ,
1053
1054 // http://janko.at/Raetsel/Sudoku/369.a.htm
1055 // 52
1056 "...E.6DB...2.8.."
1057 "....5G.3.9F8C1.."
1058 "981....FG....7.."
1059 ".3.F8....65.2..9"
1060 "3G....4A5D..7.F."
1061 ".A.D...2......64"
1062 ".2.4C.F..A.G...3"
1063 "..F.D.....6C.21E"
1064 "1F9.B2.....E.D.."
1065 "4...E.3..B.DF.2."
1066 "5E......9...3.C."
1067 ".D.3..8142....5A"
1068 "2..5.D6....F1.A."
1069 "..4....86....EDG"
1070 "..3CGFB.E.DA...."
1071 "..G.3...279.6..."
1072 ,
1073
1074 // http://janko.at/Raetsel/Sudoku/370.a.htm
1075 // 53
1076 "3....1G..5.7.A4."
1077 "FE7C.3.9.......G"
1078 ".8.....5D9G.C..3"
1079 "5G.A6....38.FD7."
1080 "...5G.94.8.27C.."
1081 ".98.E.5C.G......"
1082 "4....7.25.CB.6.A"
1083 "2A.F.......6.5G."
1084 ".F3.5.......4.DB"
1085 "C.B.98.AF.7....6"
1086 "......6.2D.C.9E."
1087 "..6G4.B.81.9A..."
1088 ".D53.C8....E6.97"
1089 "A..2.D467.....5."
1090 "8.......4.9.32B1"
1091 ".4F.2.3..61....C"
1092 ,
1093
1094 // http://janko.at/Raetsel/Sudoku/501.a.htm
1095 // 54
1096 "..E3.7.1.5.6.B.."
1097 "....G85B92.FE..."
1098 "C...4.36A......2"
1099 ".4.BA......G7..C"
1100 "48.2E...5G.9ADB."
1101 ".....B...C4...9E"
1102 "9A..F42.E1...5C."
1103 ".5C.7.9G8....413"
1104 "BE8....26A.C.G3."
1105 ".FD...7E.931..56"
1106 "AC...G6...2....."
1107 ".1369.85...BD.A7"
1108 "E..A6......5C.7."
1109 "3......A7F.E...5"
1110 "...51.G7CDA2...."
1111 "..G.C.B.3.1.9A.."
1112 ,
1113
1114 // http://janko.at/Raetsel/Sudoku/502.a.htm
1115 // 55
1116 "G..B..12....73.C"
1117 "..8DB.7CG9A....."
1118 "6.3...D...4E.8B."
1119 "4...38G.21....AD"
1120 "..F.........E.6."
1121 ".E6..75DFG3.B..."
1122 ".7.G.F916EB.4583"
1123 ".B.3.E2..89...F1"
1124 "74...3E..62.5.1."
1125 "9852.CB7DFE.3.G."
1126 "...A.56F431..C9."
1127 ".F.6.........E.."
1128 "C1....F4.B5G...E"
1129 ".D4.EG...2...9.8"
1130 ".....D8974.1CA.."
1131 "B.A7....ED..F..4"
1132 ,
1133
1134 // http://janko.at/Raetsel/Sudoku/503.a.htm
1135 // 56
1136 "7B..9C.3..6.A.2E"
1137 "4.2...67A..53..D"
1138 ".....ADE.CB.4.5."
1139 "AD8....B7.F....."
1140 ".C...1.A.9.....8"
1141 "F.E8...C.4.D.6.2"
1142 "..D.59.......1A."
1143 ".1.2......7FBDC3"
1144 "BF6EC4......2.7."
1145 ".53.......C2.E.."
1146 "D.G.2.A.5...F3.C"
1147 "2.....1.B.3...8."
1148 ".....F.43....CD7"
1149 ".8.G.E7.C25....."
1150 "C..DG..1F7...2.A"
1151 "E7.A.6..9.18..B5"
1152 ,
1153
1154 // http://janko.at/Raetsel/Sudoku/504.a.htm
1155 // 57
1156 ".21..BD...EF6G.."
1157 "..6.5.F....D.8.E"
1158 "G4.....EB.7.1.D3"
1159 "C.D..37G..61...."
1160 "AB.D8..9.1.E..F."
1161 "6.F4..G..D..8..B"
1162 "....BD.1F.8.7.C9"
1163 "..3...6..G.BED.."
1164 "..B91.C..E...A.."
1165 "47.2.6.A3.1G...."
1166 "8..3..E..B..F1.G"
1167 ".1..7.3.D..C9.25"
1168 "....GF..28B..4.A"
1169 "5A.8.4.B1.....GF"
1170 "D.2.C....F.6.7.."
1171 "..41DA...7G..C9."
1172 ,
1173
1174 // http://janko.at/Raetsel/Sudoku/505.a.htm
1175 // 58
1176 ".B...7..4D..E13."
1177 "D......6G.E7...F"
1178 "8.6F....B....7.."
1179 "7...91D..F8C.B.."
1180 ".F.G8.1.3..27..."
1181 ".1.6.4329.7.F..D"
1182 "3..7..5..GBD8..."
1183 "48D.CE....A...9."
1184 ".3...G....C4.9EB"
1185 "...148C..3..A..2"
1186 "9..4.6.7FA5.C.G."
1187 "...EF..5.1.B6.D."
1188 "..5.ABG..7F9...6"
1189 "..3....F....18.E"
1190 "G...E5.32......9"
1191 ".6FB..89..3...C."
1192 ,
1193
1194 // http://janko.at/Raetsel/Sudoku/506.a.htm
1195 // 59
1196 "...FDAE..6.1.3B."
1197 "1..C...9.D34.6.."
1198 "8A3.4.....2E7C.."
1199 "..DG.3......8.5E"
1200 "3F2.C.....8B.5.9"
1201 ".DE.8..B2C..A..4"
1202 "C8...1.........6"
1203 ".....D.31.5...E."
1204 ".G...E.84.D....."
1205 "A.........1...43"
1206 "D..E..17C..2.FG."
1207 "2.5.AF.....9.D7B"
1208 "73.2......6.B4.."
1209 "..483B.....D.A61"
1210 "..A.14F.B...5..C"
1211 ".1C.6.D..24A9..."
1212 ,
1213
1214 // http://janko.at/Raetsel/Sudoku/507.a.htm
1215 // 60
1216 "4.8CB9G...D..FA2"
1217 "G..18..A96...E.."
1218 "F9....ED..8....B"
1219 "...D73...2F.G.81"
1220 ".......2....C.F9"
1221 "3.D7.E6...9.4..A"
1222 ".C.4..D9.GA..3.7"
1223 ".2.......7.3.65."
1224 ".3B.5.2.......D."
1225 "6.4..G8.FC..B.2."
1226 "E..G.B...D2.18.F"
1227 "CD.2....3......."
1228 "D1.B.8F...C9E..."
1229 "2....D..1B....G5"
1230 "..5...17D..G9..C"
1231 "7E9..C...468FD.3"
1232 ,
1233
1234 // http://janko.at/Raetsel/Sudoku/508.a.htm
1235 // 61
1236 "D.B.8.4..5G..2.9"
1237 ".C..6.3...D1.7B."
1238 "GE4.B..52A..FD.C"
1239 "..7.2..E.F9....."
1240 ".2..4....3.D9GEF"
1241 "43.7..A..8......"
1242 "5.ABGD.F..1...37"
1243 "..E......7..6B.."
1244 "..2E..G......3.."
1245 "C5...B..D.F971.8"
1246 "......5..2..C.GE"
1247 "348GD.C....7..5."
1248 ".....91.8..F.6.."
1249 "1.G2..F65..E.89B"
1250 ".8C.54...1.G..F."
1251 "F.5..87..9.A.C.1"
1252 ,
1253
1254 // http://janko.at/Raetsel/Sudoku/509.a.htm
1255 // 62 // problems
1256 "..EF96...8.5B.C."
1257 "D...FE....1.2A.."
1258 ".86..2..C...57.1"
1259 "C21...BD9..E...3"
1260 "5..1.C...6....DA"
1261 ".G.....7.E.1.5BC"
1262 "B...D1..8...7..."
1263 "..9D..A27.3.E..."
1264 "...3.A.E5B..6F.."
1265 "...5...C..83...B"
1266 "FDB.2.9.6.....5."
1267 "61....5...E.G..9"
1268 "4...8..3B7...EA2"
1269 "E.26...A..G..CF."
1270 "..58.D....4F...G"
1271 ".B.7C.2...5AD9.."
1272 ,
1273
1274 // http://janko.at/Raetsel/Sudoku/510.a.htm
1275 // 63
1276 "..2..DA6.38.14.."
1277 "...5.F..2......."
1278 "6.8.2.G.....7A.B"
1279 "A.F.....65.G..D."
1280 "...6.8E.52...B.."
1281 "7....2.F.G39..8E"
1282 "8..3679..4.C.1.G"
1283 ".B.EG..18.A....7"
1284 "1....A.8C..FG.3."
1285 "E.A.1.3..D42B..5"
1286 "97..CG6.1.B....4"
1287 "..3...2D.E6.A..."
1288 ".C..B.74.....5.A"
1289 "B.68.....C.7.D.F"
1290 ".......A..1.2..."
1291 "..4A.C8.E6G..7.."
1292 ,
1293
1294 // http://janko.at/Raetsel/Sudoku/511.a.htm
1295 // 64
1296 "A..95.B.G...8.FD"
1297 "G.D...6FB...A5.."
1298 ".B...1D83.A9G.7."
1299 "F68....G5..1...C"
1300 "..28DA9..5FC...G"
1301 "..G.87.2.A4D.6.."
1302 "....3F.....E.CD9"
1303 "9C5D......G.FA8."
1304 ".71B.6......5842"
1305 "D5F.B.....26...."
1306 "..9.127.F.85.D.."
1307 "2...E35..CB719.."
1308 "6...F..BE....734"
1309 ".F.ECD.3479...2."
1310 "..AG...9C1...F.8"
1311 "39.5...1.D.FB..A"
1312 ,
1313
1314 // http://janko.at/Raetsel/Sudoku/512.a.htm
1315 // 65
1316 "....G5D.C1...B2."
1317 "6...E.BC.G..D8.."
1318 "D13C..7..4..5G.."
1319 ".72B48..5.6.C9.."
1320 "....B9E....F4.12"
1321 "...A..FD7B.C8..3"
1322 "E6F..1....G3.DB9"
1323 "B..4.2.89.1...G."
1324 ".5...7.ED.C.G..8"
1325 "C9D.14....E..A35"
1326 "8..2D.591A..6..."
1327 "7G.36....259...."
1328 "..6D.E.5..B4A27."
1329 "..95..2..8..B3D4"
1330 "..7G..4.6E.5...F"
1331 ".B8...97.C32...."
1332 ,
1333
1334 // http://janko.at/Raetsel/Sudoku/513.a.htm
1335 // 66
1336 "D...9A..6.F4.3.C"
1337 "....B6..5A.E9D.."
1338 "6E5......D..7F.."
1339 ".3G9..FDC...4..."
1340 "16..AF4..C.7..58"
1341 "G....1..A.B8..F9"
1342 ".7C.3..8...F6..."
1343 "A8.F.G.C43..2..."
1344 "...7..9E3.D.8.4F"
1345 "...8G...9..5.6C."
1346 "59..F3.4..C....G"
1347 "4F..6.D..B7A..2E"
1348 "...D...BE9..G86."
1349 "..2G..3......BE5"
1350 "..E48.6A..2C...."
1351 "3.8.E5.F..AD...4"
1352 ,
1353
1354 // http://janko.at/Raetsel/Sudoku/514.a.htm
1355 // 67
1356 "...B562E.1G....."
1357 ".D27A...4...56B."
1358 ".G6..B.C..2..E7."
1359 ".1.C..7.DB..3.42"
1360 "....37.2E..G..64"
1361 "D.3..5..C.A8.G.1"
1362 "C..A...F9...D..3"
1363 ".2.FDG8..3.4.5.E"
1364 "2.8.F.4..CEBG.5."
1365 "E..D...G5...C..B"
1366 "1.5.2C.D..9..F.8"
1367 "FC..E..5G.81...."
1368 "A3.5..G8.9..6.E."
1369 ".F4..A..2.1..39."
1370 ".E16...3...C42G."
1371 ".....E1.763AF..."
1372 ,
1373
1374 // http://janko.at/Raetsel/Sudoku/515.a.htm
1375 // 68
1376 "A.5.FB.C...7..3."
1377 "G38....D.C.EB5.."
1378 "..F...3.9G8..D7."
1379 "...E.2.4.A.59.FG"
1380 "8..A..6.3F7D5..."
1381 "B..4....5...DEA."
1382 "61..BD75..E....."
1383 ".5C.1E.A.8....62"
1384 "C8....E.7.62.GD."
1385 ".....A..D95F..84"
1386 ".D41...6....2..7"
1387 "...928D1.E..3..C"
1388 "57.3E.A.8.9.C..."
1389 ".21..C58.4...F.."
1390 "..6C9.1.2....AEB"
1391 ".A..D...G.1C.4.5"
1392 ,
1393
1394 // http://janko.at/Raetsel/Sudoku/516.a.htm
1395 // 69
1396 "...E9.5..6.G...F"
1397 ".6.4.3.G...7.1.B"
1398 ".37A.E..49.5C..."
1399 "9....C76.32E.548"
1400 ".E...4..DG9.2..."
1401 ".4...562C...G8.."
1402 ".G93..1B5F.2.C.7"
1403 "C1.639.A.......5"
1404 "D.......2.496.8G"
1405 "6.3.F.9EG5..B2C."
1406 "..AB...86EC...3."
1407 "...9.2C1..B...D."
1408 "7A1.462.3B5....D"
1409 "...D5.89..G.1BA."
1410 "E.5.G...9.6.F.2."
1411 "4...B.E..D.87..."
1412 ,
1413
1414 // http://janko.at/Raetsel/Sudoku/517.a.htm
1415 // 70
1416 ".FE6.A.8......1."
1417 "145..7.E..F...68"
1418 "...C.4..EG82..5F"
1419 "....5FD.7B1..C.4"
1420 "..4.82A.C..1B..."
1421 ".8C7..5....AD24G"
1422 "..1F..9.G83BA..."
1423 "..A9F.E6D.....71"
1424 "F9.....53C.718.."
1425 "...321CD.6..74.."
1426 "A1726....4..GFC."
1427 "...49..F.1A8.E.."
1428 "D.F..62B.593...."
1429 "4B..D83A..2.5..."
1430 "87...5..B.4..936"
1431 ".6......8.7.CBD."
1432 ,
1433
1434 // http://janko.at/Raetsel/Sudoku/518.a.htm
1435 // 71
1436 "...84......D.1F7"
1437 ".6.C..A.4G.....9"
1438 "..945.G.8.F..3A."
1439 "...7CFD2.3...E.G"
1440 "..6B..58..G....."
1441 "8.7..G.C9.4A1..E"
1442 "C..EA3.9...5.GD."
1443 ".F...2.....B3.8A"
1444 "AB.6F.....C...9."
1445 ".7E.B...5.16G..3"
1446 "1..G79.3A.D..C.5"
1447 ".....1..7E..AB.."
1448 "3.4...8.E792B..."
1449 ".E8..D.B.A.359.."
1450 "5.....1A.D..E.3."
1451 "69D.2......C7..."
1452 ,
1453
1454 // http://janko.at/Raetsel/Sudoku/519.a.htm
1455 // 72// problems
1456 "CD.E9.8......6.."
1457 ".62..3...E..85.7"
1458 ".G...6...AF5...D"
1459 "....D54.39.8...E"
1460 "6FB..ED4...G.1.."
1461 "4.A.5..2D......G"
1462 ".C.1...GF53A2..6"
1463 ".2.3.A.1....F..."
1464 "...2....4.B.9.6."
1465 "3..6G8E95...4.2."
1466 "G......D9..3.F.8"
1467 "..4.2...68A..GC3"
1468 "A...1.3E.D9C...."
1469 "E...49C...5...1."
1470 "2.9D..A...8..3F."
1471 "..8......2.7A.E5"
1472 ,
1473
1474 // http://janko.at/Raetsel/Sudoku/520.a.htm
1475 // 73
1476 "D..6..1.2C3....8"
1477 "..1..386..5..9.."
1478 ".8C2......DGBF1."
1479 "..5.G......1.A.D"
1480 "..A876..4..C5..."
1481 "64F...AD.2.5..C."
1482 "E....1B9.6A...24"
1483 "B...4....8G...7."
1484 ".7...BD....6...9"
1485 "FG...C9.1D4....A"
1486 ".5..E.6.G7...1DC"
1487 "...BF..G..2A37.."
1488 "5.8.6......D.3.."
1489 ".E2D5A......7CF."
1490 "..7..9..A51..4.."
1491 "9....DC1.4..E..5"
1492 ,
1493
1494 // http://janko.at/Raetsel/Sudoku/586.a.htm
1495 // 74
1496 "8D...6E...A2...."
1497 "E9.6....4..D.537"
1498 "..539C.2..7.A4.."
1499 "..B2G..5......6D"
1500 ".F....G9CB84...."
1501 "21.D.F5..7.EB.G6"
1502 "983..47.65...A.2"
1503 ".7.C6....A..3954"
1504 "C698..1....54.7."
1505 "F.A...46.82..D9G"
1506 "42.5B.C..3G.6.8F"
1507 "....5E28F9....A."
1508 "7B......G..1C3.."
1509 "..F4.5..B.3AG6.."
1510 "35E.C..A....7.49"
1511 "....D1...FC...25"
1512 ,
1513
1514 // http://janko.at/Raetsel/Sudoku/587.a.htm
1515 // 75
1516 "6D.5F.B83..7...."
1517 ".F.761...854.A.."
1518 "39.8.D..B..EF.6."
1519 "..E.3.956F...CB1"
1520 "F65......GBA...2"
1521 "...3.6C7D9...8.B"
1522 "..DE..82F.7...5."
1523 "B.7.DF....3.619."
1524 ".A9B.5....81.F.6"
1525 ".3...E.BG5..12.."
1526 "C.G...DF7B9.A..."
1527 "5...1C6......B84"
1528 "7E6...F91A.B.3.."
1529 ".5.9A..D..6.B.2E"
1530 "..A.BG5...F97.1."
1531 "....2..65E.8C.AF"
1532 ,
1533
1534 // http://janko.at/Raetsel/Sudoku/588.a.htm
1535 // 76
1536 "F.....8.43..BGD6"
1537 "6E..G29....C3.7."
1538 "2.1..D7.5.E..C.."
1539 "89.4...C7.612..."
1540 ".1.F..DAEB5...8."
1541 "..6AF34...D..E1."
1542 "E...B..5..8G.493"
1543 "7.892....4.3D..."
1544 "...1E.A....F63.C"
1545 "D6E.89..G..5...1"
1546 ".G3..F...91E78.."
1547 ".F...1GB36..E.A."
1548 "...87G.6C...4.FA"
1549 "..7..8.1.FB..6.2"
1550 ".D.GA....134..CE"
1551 "C2A6..F3.5.....D"
1552 ,
1553
1554 // http://janko.at/Raetsel/Sudoku/589.a.htm
1555 // 77
1556 "...439.27..5..G."
1557 "5C67...A93...2D."
1558 ".3B...1D...2.78."
1559 "...2.G7.8EA.3.5F"
1560 "E.C.A23....D...7"
1561 "...D.B..G7F81..6"
1562 ".G.1.68.2A.ECD.."
1563 "F8.6.4G......AE5"
1564 "643......DB.F.2E"
1565 "..586.4C.F2.D.B."
1566 "B..F8A2G..3.7..."
1567 "7...E....894.C.A"
1568 "D7.3.1B4.CE.9..."
1569 ".F4.9...B2...6C."
1570 ".BG...67D...4E13"
1571 ".6..F..31.4AB..."
1572 ,
1573
1574 // http://janko.at/Raetsel/Sudoku/590.a.htm
1575 // 78
1576 ".1B.....2.59F.6G"
1577 "G.2341A...BF...."
1578 "C.E8....3..D.24."
1579 "F....9E..1...B38"
1580 "..1.F45.6.3.2..9"
1581 "3..E.8C.5D..1..."
1582 "....DB..A8...FE3"
1583 ".4.93.1.E..G.8D."
1584 ".GF.C..7.5.69.8."
1585 "BDC...F1..A8...."
1586 "...5..94.21.G..C"
1587 "E..1.5.8.FC3.D.."
1588 "1B4...8..92....6"
1589 ".A8.9..C....45.B"
1590 "....12...6853A.F"
1591 "5C.27A.B.....91."
1592 ,
1593
1594 // http://janko.at/Raetsel/Sudoku/591.a.htm
1595 // 79
1596 "A57...8E4......9"
1597 ".4C85.6....9.E3B"
1598 ".E1...3G657..AC8"
1599 "...F.1.9.8EA5.7."
1600 ".8.5.7...4F...2."
1601 "..9316....BG8..."
1602 "..E2A..4.....D97"
1603 "F.4....856..G1.3"
1604 "6.84..ECB....F.5"
1605 "5FA.....C..637.."
1606 "...7F4....1528.."
1607 ".2...35...8.C.1."
1608 ".9.13E2.8.4.A..."
1609 "BD2..G4FAC...98."
1610 "8G5.C....D.EF3B."
1611 "4......57B...2G6"
1612 ,
1613
1614 // http://janko.at/Raetsel/Sudoku/592.a.htm
1615 // 80
1616 "..8.A.F.B97.1.6."
1617 "1B79...6.....8E."
1618 "..E3..928...D.5."
1619 "26..8.B....17..."
1620 "91..6A2..B3..D.."
1621 ".F..37.52.GD.4.."
1622 "3.679...5.EF...A"
1623 "4.B..FC..16...G5"
1624 "73...8A..5D..F.1"
1625 "5...FC.3...98G.E"
1626 "..F.D5.13.A8..B."
1627 "..A..B6..2FG..7D"
1628 "...6B....E.2..1C"
1629 ".4.F...A1D..GE.."
1630 ".A2.....G...4638"
1631 ".7.G.28F.6.3.A.."
1632 ,
1633
1634 // http://janko.at/Raetsel/Sudoku/593.a.htm
1635 // 81
1636 ".2ED.4...C...F.."
1637 ".8.FE.6.1.....A4"
1638 "A..7.8F.29.B...C"
1639 "....3GCB...5.87D"
1640 "..45DA..B7F3C.6."
1641 "....G...4..CA2.5"
1642 "2.7.F..CG...34B."
1643 ".ED.B54381..G..."
1644 "...4..825GBE.3F."
1645 ".B5G...63..F.C.1"
1646 "1.F27..E...4...."
1647 ".D.84FG5..167B.."
1648 "3C1.2...DB8G...."
1649 "D...6.59.F3.8..2"
1650 "4G.....F.A.71.C."
1651 "..8...B...9.ED3."
1652 ,
1653
1654 // http://janko.at/Raetsel/Sudoku/594.a.htm
1655 // 82
1656 "5....E...7B..CF2"
1657 "AF.467....3...D."
1658 "D.E.C.3....8.7.."
1659 "....8..DA6.E..5."
1660 "..3B....4.A.EF1."
1661 "69..B.D.3.....C7"
1662 "1..G...49.C..6.."
1663 "...D12G5FE..B..."
1664 "...7..93285AF..."
1665 "..8..4.76...2..G"
1666 "96.....F.3.B..84"
1667 ".AB3.G.6....95.."
1668 ".1..F.69E..2...."
1669 "..9.G....F.3.2.E"
1670 ".E...D....95G.BF"
1671 "2G7..C5...4....3"
1672 ,
1673
1674 // http://janko.at/Raetsel/Sudoku/595.a.htm
1675 // 83
1676 ".3.B8..C61...2.."
1677 ".E.2...F..4.1A67"
1678 "71D...A...C..B.."
1679 ".6...92D.B.3..45"
1680 "...8A...C.F4...3"
1681 ".F9.75E4..B.6..."
1682 "5..1...8..6.4F.."
1683 "4...C....EA.B.2G"
1684 "2D.7.E5....6...1"
1685 "..BA.D..9...G..8"
1686 "...E.1..G2DF.59."
1687 "6...4C.B...73..."
1688 "A2..B.C.46E...7."
1689 "..1..2...9...8AD"
1690 "DC75.A..3...E.B."
1691 "..8...GEA..C2.5."
1692 ,
1693
1694 // http://janko.at/Raetsel/Sudoku/596.a.htm
1695 // 84
1696 "B62...9...1...G7"
1697 "C.....7.6..A.1.9"
1698 ".1....A8..7.2..3"
1699 "..A831.CG2..E..."
1700 ".8..92.A..GD4..."
1701 "G.C.D8..F.529..."
1702 "...4.........D6A"
1703 ".5.B.C.17..3G8.."
1704 "..E12..9D.B.6.8."
1705 "9C7.........5..."
1706 "...A54.7..2C.F.G"
1707 "...FCD..4.A5..9."
1708 "...9..1E2.F83C.."
1709 "1..7.9..A3....D."
1710 "2.3.8..B.5.....6"
1711 "EB...3...7...G12"
1712 ,
1713
1714 // http://janko.at/Raetsel/Sudoku/597.a.htm
1715 // 85
1716 "..6..1..4..F3.A."
1717 "7E..6G.3....FC.."
1718 "BC3..FD.6.9.G..2"
1719 ".....4E.CG3.B..."
1720 "1.E..C.....2.A.."
1721 "...AE6...4F..9.3"
1722 ".8.2..3F.C.1...."
1723 "34..8...B57..EC."
1724 ".B9..3CD...8..E5"
1725 "....9.F.GA..4.1."
1726 "A.4..E2...6BC..."
1727 "..8.A.....E..7.B"
1728 "...C.2A6.EB....."
1729 "E..8.9.5.3C..62G"
1730 "..B9....2.GD..5C"
1731 ".3.5C..E..1..4.."
1732 ,
1733
1734 // http://janko.at/Raetsel/Sudoku/598.a.htm
1735 // 86
1736 ".FA..5...B7..E.6"
1737 "18....4B...C..G."
1738 "..G.7..CF....8.5"
1739 ".B9CG8.........."
1740 ".D..A.G..85....E"
1741 "69..3...1...C5.."
1742 "7.4B....G.A.2..F"
1743 "..8.5B6D..27...."
1744 "....8G..EC61.D.."
1745 "3..6.C.7....91.8"
1746 "..DF...5...9..73"
1747 "8....6B..2.5..E."
1748 "..........14EFD."
1749 "9.6....AD..F.7.."
1750 ".E..6...29....1C"
1751 "G.2..EF...C..4B."
1752 ,
1753
1754 // http://janko.at/Raetsel/Sudoku/599.a.htm
1755 // 87
1756 ".3..6GF..C8....."
1757 "G..9.B.8...5.A74"
1758 "7..8.2..B..D...."
1759 ".EA.....3.6..9B."
1760 "..F.2....3AG...."
1761 "E7...........39G"
1762 ".9.A..31E6..FC.."
1763 "4.3..D.9C.B....E"
1764 "6....8.4A.2..G.C"
1765 "..G3..CFD9..4.A."
1766 "A85...........FB"
1767 "....5A7....6.2.."
1768 ".24..7.D.....16."
1769 "....1..3..C.2..8"
1770 "1A7.C...6.3.E..9"
1771 ".....6E..1F2..3."
1772 ,
1773
1774 // http://janko.at/Raetsel/Sudoku/600.a.htm
1775 // 88
1776 "....47.....9B.1."
1777 "..5..9F2.6....43"
1778 "B..3.....E24..9."
1779 "..9.....A57..2.."
1780 ".DA4E..7...C.F.."
1781 ".1.6..4.E....8.B"
1782 "....81BF..4.5..7"
1783 "...F9A....D..E.4"
1784 "5.2..3....A71..."
1785 "6..C.B..G9FE...."
1786 "7.8....9.D..C.3."
1787 "..G.6...1..3E45."
1788 "..F..E8D.....A.."
1789 ".2..741.....3..8"
1790 "D6....5.92B..1.."
1791 ".A.EB.....C6....",
1792 // 89
1793 //".N..JG..O7591...8I....L.."
1794 "BNDAJG62O7591KHF8IP34CLME"
1795 "FG.M.B8...P.E...CJ..H...."
1796 "...........G.4.H.D.O.NJA2"
1797 ".....J.EN4.L6MA.B.2......"
1798 "HE..2..DC.....F4KMA.B.9O8"
1799 "M....62...47C19......E5.."
1800 ".I2.8M.JGL...ADN..K..3.F7"
1801 "..H3.5..89....I.J.....NL."
1802 "1B..9.FAP.6.N....537.H..O"
1803 "......1..N...O...LC.68.PG"
1804 "KOA.FNBH.....7.C.....M..6"
1805 "45.ECP.I..N.F.J1...MK.79."
1806 "I.L..8.O..9.P...A...2.1J."
1807 "..621.D.M.....B8LG..P..CH"
1808 ".HP.N7E.L1....3..B..O.G45"
1809 "....BIO....5.C.P...FN48E."
1810 "...FL.....2.DH..17..59O.."
1811 "..I.MF..2G.N...A6O.HC.PB."
1812 "72.1..L...IM.96E.45G....."
1813 "..9...7M..A.O...I...L...."
1814 ".C.JA.........1.....E.48."
1815 "O.BI.......PHL.6..1....5C"
1816 "G6M...N4FI8...K..H.E....."
1817 ".L..4.917....BE.G8F.M.I.."
1818 "8F......5.O3..4...9.....K",
1819 // 90
1820 //".N..JG..O7591...8I....L.."
1821 ".ND.JG6.O7591..F8IP.4.LM."
1822 "FG.M.B8...P.E...CJ..H...."
1823 "...........G.4.H.D.O.NJA2"
1824 ".....J.EN4.L6MA.B.2......"
1825 "HE..2..DC.....F4KMA.B.9O8"
1826 "M....62...47C19......E5.."
1827 ".I2.8M.JGL...ADN..K..3.F7"
1828 "..H3.5..89....I.J.....NL."
1829 "1B..9.FAP.6.N....537.H..O"
1830 "......1..N...O...LC.68.PG"
1831 "KOA.FNBH.....7.C.....M..6"
1832 "45.ECP.I..N.F.J1...MK.79."
1833 "I.L..8.O..9.P...A...2.1J."
1834 "..621.D.M.....B8LG..P..CH"
1835 ".HP.N7E.L1....3..B..O.G45"
1836 "....BIO....5.C.P...FN48E."
1837 "...FL.....2.DH..17..59O.."
1838 "..I.MF..2G.N...A6O.HC.PB."
1839 "72.1..L...IM.96E.45G....."
1840 "..9...7M..A.O...I...L...."
1841 ".C.JA.........1.....E.48."
1842 "O.BI.......PHL.6..1....5C"
1843 "G6M...N4FI8...K..H.E....."
1844 ".L..4.917....BE.G8F.M.I.."
1845 "8F......5.O3..4...9.....K"
1846 };
1847
1849 const unsigned int n_examples = sizeof(examples)/sizeof(char*);
1850
1852 int example_size(const char *s) {
1853 int l = std::strlen(s);
1854 int res = static_cast<int>(std::sqrt(std::sqrt(static_cast<float>(l))));
1855 assert(res*res*res*res == l);
1856 return res;
1857 }
1858
1860 int sudokuField(const char *s, int n, int i, int j) {
1861 assert(example_size(s) == std::sqrt(static_cast<float>(n)));
1862 assert(i >= 0 && i < n);
1863 assert(j >= 0 && j < n);
1864 char c = s[j*n + i];
1865 if (!std::isalnum(c))
1866 return 0;
1867 if (std::isdigit(c))
1868 return c - '0';
1869 if (std::islower(c))
1870 c = static_cast<char>(std::toupper(c));
1871 // std::alpha(c) == true && std::isupper(c)
1872 int res = (c - 'A') + 10;
1873 if (res > n) return 0;
1874 else return res;
1875 }
1876
1877}
1878
1879// STATISTICS: example-any
const unsigned int n_examples
The number of instances.
int example_size(const char *s)
The size of an instance.
const char * examples[]
The specifications.
int sudokuField(const char *s, int n, int i, int j)
Return value at position (i,j) in the example s of size n.
const int n
The size of the problem.