Analysis of xx-ph-00033342-2012_04-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.....7.6...5......5....5..6..8...4...3.....7.9......89..6......2..1......4..3 initial
Autosolve
position: 9857.....7.6...5......5....5..6..8...4...3.....7.9......89..6......2..1......4..3 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for E7,D8: 3..:
* DIS # D8: 3 # I8: 4,9 => CTR => I8: 5,7,8 * DIS # D8: 3 + I8: 5,7,8 # E9: 1,7 => CTR => E9: 6,8 * DIS # D8: 3 + I8: 5,7,8 + E9: 6,8 # B7: 1,7 => CTR => B7: 2,3,5 * PRF # E7: 3 # F8: 5,8 => SOL * STA # E7: 3 + F8: 5,8 * CNT 4 HDP CHAINS / 28 HYP OPENED
See Appendix: Full HDP Chains for full list of HDP chains.
Details
This sudoku is deep. Here is some information that may be helpful on how to proceed.
Positions
| 98.7.....7.6...5......5....5..6..8...4...3.....7.9......89..6......2..1......4..3 | initial |
| 9857.....7.6...5......5....5..6..8...4...3.....7.9......89..6......2..1......4..3 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) E7,D8: 3.. / E7 = 3 => 1 pairs (_) / D8 = 3 => 3 pairs (_) A3,C3: 4.. / A3 = 4 => 2 pairs (_) / C3 = 4 => 1 pairs (_) E4,D6: 4.. / E4 = 4 => 0 pairs (_) / D6 = 4 => 1 pairs (_) C3,C8: 4.. / C3 = 4 => 1 pairs (_) / C8 = 4 => 2 pairs (_) D2,D6: 4.. / D2 = 4 => 0 pairs (_) / D6 = 4 => 1 pairs (_) F8,E9: 6.. / F8 = 6 => 2 pairs (_) / E9 = 6 => 1 pairs (_) E1,E9: 6.. / E1 = 6 => 2 pairs (_) / E9 = 6 => 1 pairs (_) A5,A6: 8.. / A5 = 8 => 1 pairs (_) / A6 = 8 => 0 pairs (_) I8,H9: 8.. / I8 = 8 => 1 pairs (_) / H9 = 8 => 1 pairs (_) F2,F3: 9.. / F2 = 9 => 0 pairs (_) / F3 = 9 => 0 pairs (_) * DURATION: 0:00:06.509578 START: 12:50:36.808706 END: 12:50:43.318284 2020-09-22 * CP COUNT: (10) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) E7,D8: 3.. / E7 = 3 ==> 0 pairs (*) / D8 = 3 ==> 4 pairs (_) * DURATION: 0:00:21.469751 START: 12:50:43.318961 END: 12:51:04.788712 2020-09-22 * REASONING E7,D8: 3.. * DIS # D8: 3 # I8: 4,9 => CTR => I8: 5,7,8 * DIS # D8: 3 + I8: 5,7,8 # E9: 1,7 => CTR => E9: 6,8 * DIS # D8: 3 + I8: 5,7,8 + E9: 6,8 # B7: 1,7 => CTR => B7: 2,3,5 * PRF # E7: 3 # F8: 5,8 => SOL * STA # E7: 3 + F8: 5,8 * CNT 4 HDP CHAINS / 28 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
33342;2012_04;GP;21;11.70;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for E7,D8: 3..:
* INC # D8: 3 # G8: 4,9 => UNS * DIS # D8: 3 # I8: 4,9 => CTR => I8: 5,7,8 * INC # D8: 3 + I8: 5,7,8 # G8: 4,9 => UNS * INC # D8: 3 + I8: 5,7,8 # G8: 7 => UNS * INC # D8: 3 + I8: 5,7,8 # G8: 4,9 => UNS * INC # D8: 3 + I8: 5,7,8 # G8: 7 => UNS * INC # D8: 3 + I8: 5,7,8 # F7: 1,7 => UNS * DIS # D8: 3 + I8: 5,7,8 # E9: 1,7 => CTR => E9: 6,8 * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 # F7: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 # F7: 5 => UNS * DIS # D8: 3 + I8: 5,7,8 + E9: 6,8 # B7: 1,7 => CTR => B7: 2,3,5 * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # E4: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # E5: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # F7: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # F7: 5 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # E4: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # E5: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # G8: 4,9 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # G8: 7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # F7: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # F7: 5 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # E4: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # E5: 1,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # F8: 6,8 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 # F8: 5,7 => UNS * INC # D8: 3 + I8: 5,7,8 + E9: 6,8 + B7: 2,3,5 => UNS * PRF # E7: 3 # F8: 5,8 => SOL * STA # E7: 3 + F8: 5,8 * CNT 27 HDP CHAINS / 28 HYP OPENED