Analysis of xx-ph-01055388-13_07-base.sdk
Original Sudoku
level: deep
position: 98.76....75....96...6......8....4.3..2..1......98..5....85..6......2..1......3..4 initial
Autosolve
position: 98.76....75....96...6......8....4.3..2..1......98..5....85..6......2..1......3..4 autosolve
Pair Reduction Variants
Deep Pair Reduction
Time used: 0:00:06.398861
See Appendix: Full HDP Chains for full list of HDP chains.
Deep Constraint Pair Analysis
Time used: 0:00:00.000016
List of important HDP chains detected for F8,E9: 8..:
* DIS # F8: 8 # I4: 1,6,7 => CTR => I4: 2,9 * PRF # F8: 8 + I4: 2,9 # E7: 7,9 => SOL * STA # F8: 8 + I4: 2,9 + E7: 7,9 * CNT 2 HDP CHAINS / 18 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
| 98.76....75....96...6......8....4.3..2..1......98..5....85..6......2..1......3..4 | initial |
| 98.76....75....96...6......8....4.3..2..1......98..5....85..6......2..1......3..4 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (1) E6: 3,7 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) F7,D9: 1.. / F7 = 1 => 4 pairs (_) / D9 = 1 => 2 pairs (_) D4,F6: 2.. / D4 = 2 => 3 pairs (_) / F6 = 2 => 5 pairs (_) D5,E6: 3.. / D5 = 3 => 5 pairs (_) / E6 = 3 => 2 pairs (_) E7,D8: 4.. / E7 = 4 => 3 pairs (_) / D8 = 4 => 2 pairs (_) E4,F5: 5.. / E4 = 5 => 2 pairs (_) / F5 = 5 => 3 pairs (_) I8,H9: 5.. / I8 = 5 => 1 pairs (_) / H9 = 5 => 2 pairs (_) C4,E4: 5.. / C4 = 5 => 3 pairs (_) / E4 = 5 => 2 pairs (_) E3,E4: 5.. / E3 = 5 => 3 pairs (_) / E4 = 5 => 2 pairs (_) F8,E9: 8.. / F8 = 8 => 6 pairs (_) / E9 = 8 => 3 pairs (_) * DURATION: 0:00:06.127623 START: 16:25:52.710530 END: 16:25:58.838153 2021-01-12 * CP COUNT: (9) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) F8,E9: 8.. / F8 = 8 ==> 0 pairs (*) / E9 = 8 => 0 pairs (X) * DURATION: 0:00:17.464725 START: 16:26:07.291284 END: 16:26:24.756009 2021-01-12 * REASONING F8,E9: 8.. * DIS # F8: 8 # I4: 1,6,7 => CTR => I4: 2,9 * PRF # F8: 8 + I4: 2,9 # E7: 7,9 => SOL * STA # F8: 8 + I4: 2,9 + E7: 7,9 * CNT 2 HDP CHAINS / 18 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
1055388;13_07;GP;24;11.30;11.30;10.10
Appendix: Full HDP Chains
A1. Pair Reduction Analysis
Full list of HDP chains traversed:
* INC # B6: 3,7 => UNS * INC # B6: 1,4,6 => UNS * CNT 2 HDP CHAINS / 2 HYP OPENED
A2. Pair Reduction
Full list of HDP chains traversed:
* INC # B6: 3,7 => UNS * INC # B6: 1,4,6 => UNS * CNT 2 HDP CHAINS / 2 HYP OPENED
A3. Deep Pair Reduction
Full list of HDP chains traversed:
* INC # B6: 3,7 => UNS * INC # B6: 1,4,6 => UNS * INC # B6: 3,7 # C5: 3,7 => UNS * INC # B6: 3,7 # C5: 4,5 => UNS * INC # B6: 3,7 # B7: 3,7 => UNS * INC # B6: 3,7 # B8: 3,7 => UNS * INC # B6: 3,7 # D4: 2,6 => UNS * INC # B6: 3,7 # D4: 9 => UNS * INC # B6: 3,7 # I6: 2,6 => UNS * INC # B6: 3,7 # I6: 1 => UNS * INC # B6: 3,7 # H1: 2,4 => UNS * INC # B6: 3,7 # H3: 2,4 => UNS * INC # B6: 3,7 => UNS * INC # B6: 1,4,6 => UNS * CNT 14 HDP CHAINS / 14 HYP OPENED
A4. Deep Constraint Pair Analysis
Full list of HDP chains traversed for F8,E9: 8..:
* INC # F8: 8 # F1: 1,2 => UNS * INC # F8: 8 # D2: 1,2 => UNS * INC # F8: 8 # D3: 1,2 => UNS * INC # F8: 8 # F3: 1,2 => UNS * INC # F8: 8 # C2: 1,2 => UNS * INC # F8: 8 # I2: 1,2 => UNS * INC # F8: 8 # I4: 2,9 => UNS * DIS # F8: 8 # I4: 1,6,7 => CTR => I4: 2,9 * INC # F8: 8 + I4: 2,9 # D3: 2,9 => UNS * INC # F8: 8 + I4: 2,9 # D3: 1,3,4 => UNS * INC # F8: 8 + I4: 2,9 # D3: 2,9 => UNS * INC # F8: 8 + I4: 2,9 # D3: 1,3,4 => UNS * INC # F8: 8 + I4: 2,9 # D3: 3,9 => UNS * INC # F8: 8 + I4: 2,9 # D3: 1,2,4 => UNS * INC # F8: 8 + I4: 2,9 # B6: 3,7 => UNS * INC # F8: 8 + I4: 2,9 # B6: 1,4 => UNS * PRF # F8: 8 + I4: 2,9 # E7: 7,9 => SOL * STA # F8: 8 + I4: 2,9 + E7: 7,9 * CNT 17 HDP CHAINS / 18 HYP OPENED