Analysis of xx-ph-00018454-KZ1C-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.....6.....7....7.5..9.4...3......64..9.......2.41..98..5......4..2......1..3 initial
Autosolve
position: 98.7.....6.....7....7.5..9.4...3......64..9.......2.41..98..5......4..29.....1..3 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000021
List of important HDP chains detected for B7,I7: 4..:
* DIS # B7: 4 # H7: 6,7 => CTR => H7: 1 * DIS # B7: 4 + H7: 1 # G4: 6,8 => CTR => G4: 2 * PRF # B7: 4 + H7: 1 + G4: 2 # G6: 6,8 => SOL * STA # B7: 4 + H7: 1 + G4: 2 + G6: 6,8 * CNT 3 HDP CHAINS / 20 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.....6.....7....7.5..9.4...3......64..9.......2.41..98..5......4..2......1..3 | initial |
| 98.7.....6.....7....7.5..9.4...3......64..9.......2.41..98..5......4..29.....1..3 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) D4,E5: 1.. / D4 = 1 => 1 pairs (_) / E5 = 1 => 1 pairs (_) H7,G8: 1.. / H7 = 1 => 1 pairs (_) / G8 = 1 => 1 pairs (_) H5,G6: 3.. / H5 = 3 => 1 pairs (_) / G6 = 3 => 1 pairs (_) I7,G9: 4.. / I7 = 4 => 1 pairs (_) / G9 = 4 => 1 pairs (_) B7,I7: 4.. / B7 = 4 => 1 pairs (_) / I7 = 4 => 1 pairs (_) B4,B6: 9.. / B4 = 9 => 0 pairs (_) / B6 = 9 => 1 pairs (_) D9,E9: 9.. / D9 = 9 => 2 pairs (_) / E9 = 9 => 0 pairs (_) F2,F4: 9.. / F2 = 9 => 0 pairs (_) / F4 = 9 => 1 pairs (_) * DURATION: 0:00:06.616375 START: 00:15:46.232724 END: 00:15:52.849099 2020-12-06 * CP COUNT: (8) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) D9,E9: 9.. / D9 = 9 ==> 2 pairs (_) / E9 = 9 ==> 0 pairs (_) B7,I7: 4.. / B7 = 4 ==> 0 pairs (*) / I7 = 4 => 0 pairs (X) * DURATION: 0:00:23.457623 START: 00:15:52.850114 END: 00:16:16.307737 2020-12-06 * REASONING B7,I7: 4.. * DIS # B7: 4 # H7: 6,7 => CTR => H7: 1 * DIS # B7: 4 + H7: 1 # G4: 6,8 => CTR => G4: 2 * PRF # B7: 4 + H7: 1 + G4: 2 # G6: 6,8 => SOL * STA # B7: 4 + H7: 1 + G4: 2 + G6: 6,8 * CNT 3 HDP CHAINS / 20 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
18454;KZ1C;GP;23;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for D9,E9: 9..:
* INC # D9: 9 # D3: 1,6 => UNS * INC # D9: 9 # D3: 2,3 => UNS * INC # D9: 9 # G1: 1,6 => UNS * INC # D9: 9 # H1: 1,6 => UNS * INC # D9: 9 # D4: 5,6 => UNS * INC # D9: 9 # F4: 5,6 => UNS * INC # D9: 9 # D8: 5,6 => UNS * INC # D9: 9 # D8: 3 => UNS * INC # D9: 9 => UNS * INC # E9: 9 => UNS * CNT 10 HDP CHAINS / 10 HYP OPENED
Full list of HDP chains traversed for B7,I7: 4..:
* DIS # B7: 4 # H7: 6,7 => CTR => H7: 1 * INC # B7: 4 + H7: 1 # H9: 6,7 => UNS * INC # B7: 4 + H7: 1 # H9: 6,7 => UNS * INC # B7: 4 + H7: 1 # H9: 8 => UNS * INC # B7: 4 + H7: 1 # E7: 6,7 => UNS * INC # B7: 4 + H7: 1 # F7: 6,7 => UNS * INC # B7: 4 + H7: 1 # I4: 6,7 => UNS * INC # B7: 4 + H7: 1 # I4: 2,5,8 => UNS * INC # B7: 4 + H7: 1 # H9: 6,7 => UNS * INC # B7: 4 + H7: 1 # H9: 8 => UNS * INC # B7: 4 + H7: 1 # E7: 6,7 => UNS * INC # B7: 4 + H7: 1 # F7: 6,7 => UNS * INC # B7: 4 + H7: 1 # I4: 6,7 => UNS * INC # B7: 4 + H7: 1 # I4: 2,5,8 => UNS * INC # B7: 4 + H7: 1 # H9: 6,8 => UNS * INC # B7: 4 + H7: 1 # H9: 7 => UNS * INC # B7: 4 + H7: 1 # G3: 6,8 => UNS * DIS # B7: 4 + H7: 1 # G4: 6,8 => CTR => G4: 2 * PRF # B7: 4 + H7: 1 + G4: 2 # G6: 6,8 => SOL * STA # B7: 4 + H7: 1 + G4: 2 + G6: 6,8 * CNT 19 HDP CHAINS / 20 HYP OPENED