Analysis of xx-ph-00038691-12_07-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.....7.6...8......5.....9.8..6......4..3......2..1.6.5..7....1....2......3..4 initial
Autosolve
position: 98.7.....7.6...8......58....9.8..6......4..3......2..1.6.5..7....1....2......3..4 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for C7,C9: 9..:
* DIS # C7: 9 # H9: 1,8 => CTR => H9: 5,6,9 * DIS # C7: 9 + H9: 5,6,9 # I8: 3,8 => CTR => I8: 5,6,9 * DIS # C7: 9 + H9: 5,6,9 + I8: 5,6,9 # E9: 1,2 => CTR => E9: 6,7,8,9 * CNT 3 HDP CHAINS / 26 HYP OPENED
List of important HDP chains detected for F4,F5: 5..:
* DIS # F5: 5 # I5: 2,9 => CTR => I5: 7,8 * DIS # F5: 5 + I5: 7,8 # H6: 4,5,9 => CTR => H6: 7,8 * DIS # F5: 5 + I5: 7,8 + H6: 7,8 # D6: 6,9 => CTR => D6: 3 * PRF # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 # G6: 9 => SOL * STA # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 + G6: 9 * CNT 4 HDP CHAINS / 35 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...8......5.....9.8..6......4..3......2..1.6.5..7....1....2......3..4 | initial |
| 98.7.....7.6...8......58....9.8..6......4..3......2..1.6.5..7....1....2......3..4 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) C1,B2: 5.. / C1 = 5 => 0 pairs (_) / B2 = 5 => 1 pairs (_) F4,F5: 5.. / F4 = 5 => 2 pairs (_) / F5 = 5 => 2 pairs (_) A5,A6: 6.. / A5 = 6 => 1 pairs (_) / A6 = 6 => 1 pairs (_) I8,H9: 6.. / I8 = 6 => 1 pairs (_) / H9 = 6 => 0 pairs (_) H3,I3: 7.. / H3 = 7 => 1 pairs (_) / I3 = 7 => 1 pairs (_) I5,H6: 8.. / I5 = 8 => 1 pairs (_) / H6 = 8 => 1 pairs (_) C7,C9: 9.. / C7 = 9 => 3 pairs (_) / C9 = 9 => 1 pairs (_) * DURATION: 0:00:03.748367 START: 16:07:44.246088 END: 16:07:47.994455 2020-12-17 * CP COUNT: (7) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) C7,C9: 9.. / C7 = 9 ==> 4 pairs (_) / C9 = 9 ==> 1 pairs (_) F4,F5: 5.. / F4 = 5 ==> 2 pairs (_) / F5 = 5 ==> 0 pairs (*) * DURATION: 0:00:29.501537 START: 16:07:47.994972 END: 16:08:17.496509 2020-12-17 * REASONING C7,C9: 9.. * DIS # C7: 9 # H9: 1,8 => CTR => H9: 5,6,9 * DIS # C7: 9 + H9: 5,6,9 # I8: 3,8 => CTR => I8: 5,6,9 * DIS # C7: 9 + H9: 5,6,9 + I8: 5,6,9 # E9: 1,2 => CTR => E9: 6,7,8,9 * CNT 3 HDP CHAINS / 26 HYP OPENED * REASONING F4,F5: 5.. * DIS # F5: 5 # I5: 2,9 => CTR => I5: 7,8 * DIS # F5: 5 + I5: 7,8 # H6: 4,5,9 => CTR => H6: 7,8 * DIS # F5: 5 + I5: 7,8 + H6: 7,8 # D6: 6,9 => CTR => D6: 3 * PRF # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 # G6: 9 => SOL * STA # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 + G6: 9 * CNT 4 HDP CHAINS / 35 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
38691;12_07;GP;21;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for C7,C9: 9..:
* INC # C7: 9 # F1: 1,4 => UNS * INC # C7: 9 # F2: 1,4 => UNS * DIS # C7: 9 # H9: 1,8 => CTR => H9: 5,6,9 * INC # C7: 9 + H9: 5,6,9 # E7: 1,8 => UNS * INC # C7: 9 + H9: 5,6,9 # E7: 2 => UNS * DIS # C7: 9 + H9: 5,6,9 # I8: 3,8 => CTR => I8: 5,6,9 * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 # D9: 1,2 => UNS * DIS # C7: 9 + H9: 5,6,9 + I8: 5,6,9 # E9: 1,2 => CTR => E9: 6,7,8,9 * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # D9: 1,2 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # D9: 6,9 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # E1: 1,2 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # E2: 1,2 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # F1: 1,4 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # F2: 1,4 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # D9: 1,2 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # D9: 6,9 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # E1: 1,2 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # E2: 1,2 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # F1: 1,4 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 # F2: 1,4 => UNS * INC # C7: 9 + H9: 5,6,9 + I8: 5,6,9 + E9: 6,7,8,9 => UNS * INC # C9: 9 # H9: 1,5 => UNS * INC # C9: 9 # H9: 6,8 => UNS * INC # C9: 9 # G1: 1,5 => UNS * INC # C9: 9 # G1: 2,3,4 => UNS * INC # C9: 9 => UNS * CNT 26 HDP CHAINS / 26 HYP OPENED
Full list of HDP chains traversed for F4,F5: 5..:
* INC # F4: 5 # H6: 4,7 => UNS * INC # F4: 5 # H6: 5,8,9 => UNS * INC # F4: 5 # C4: 4,7 => UNS * INC # F4: 5 # C4: 2,3 => UNS * INC # F4: 5 # H3: 4,7 => UNS * INC # F4: 5 # H3: 1,6,9 => UNS * INC # F4: 5 # I5: 2,7 => UNS * INC # F4: 5 # I5: 5,8,9 => UNS * INC # F4: 5 # C4: 2,7 => UNS * INC # F4: 5 # C4: 3,4 => UNS * INC # F4: 5 # I3: 2,7 => UNS * INC # F4: 5 # I3: 3,6,9 => UNS * INC # F4: 5 => UNS * INC # F5: 5 # E4: 1,7 => UNS * INC # F5: 5 # E4: 3 => UNS * DIS # F5: 5 # I5: 2,9 => CTR => I5: 7,8 * INC # F5: 5 + I5: 7,8 # G3: 2,9 => UNS * INC # F5: 5 + I5: 7,8 # G3: 1,3,4 => UNS * INC # F5: 5 + I5: 7,8 # E4: 1,7 => UNS * INC # F5: 5 + I5: 7,8 # E4: 3 => UNS * INC # F5: 5 + I5: 7,8 # G3: 2,9 => UNS * INC # F5: 5 + I5: 7,8 # G3: 1,3,4 => UNS * INC # F5: 5 + I5: 7,8 # H6: 7,8 => UNS * DIS # F5: 5 + I5: 7,8 # H6: 4,5,9 => CTR => H6: 7,8 * INC # F5: 5 + I5: 7,8 + H6: 7,8 # C5: 7,8 => UNS * INC # F5: 5 + I5: 7,8 + H6: 7,8 # C5: 2 => UNS * INC # F5: 5 + I5: 7,8 + H6: 7,8 # H3: 6,9 => UNS * INC # F5: 5 + I5: 7,8 + H6: 7,8 # I3: 6,9 => UNS * INC # F5: 5 + I5: 7,8 + H6: 7,8 # D5: 6,9 => UNS * DIS # F5: 5 + I5: 7,8 + H6: 7,8 # D6: 6,9 => CTR => D6: 3 * INC # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 # H3: 6,9 => UNS * INC # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 # I3: 6,9 => UNS * INC # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 # G6: 4,5 => UNS * PRF # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 # G6: 9 => SOL * STA # F5: 5 + I5: 7,8 + H6: 7,8 + D6: 3 + G6: 9 * CNT 34 HDP CHAINS / 35 HYP OPENED