Analysis of xx-ph-00248044-12_12_03-base.sdk
Contents
Original Sudoku
level: deep
position: ........1.....2.3....45.6....1.7...2.7.6.....68....7....3..9...45.7..8..8..5..... initial
Autosolve
position: ........1.....2.3....45.6....1.7..62.7.6.....68....7....3..9...45.7..8..8..5..... autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for D4,F4: 8..:
* DIS # D4: 8 # C3: 7,8 => CTR => C3: 2,9 * DIS # D4: 8 + C3: 2,9 # E9: 1,2 => CTR => E9: 3,4 * DIS # D4: 8 + C3: 2,9 + E9: 3,4 # A7: 1,2 => CTR => A7: 7 * DIS # D4: 8 + C3: 2,9 + E9: 3,4 + A7: 7 => CTR => D4: 3,9 * STA D4: 3,9 * CNT 4 HDP CHAINS / 22 HYP OPENED
List of important HDP chains detected for D7,E7: 8..:
* PRF # D7: 8 # F1: 3,7 => SOL * STA # D7: 8 + F1: 3,7 * CNT 1 HDP CHAINS / 6 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
| ........1.....2.3....45.6....1.7...2.7.6.....68....7....3..9...45.7..8..8..5..... | initial |
| ........1.....2.3....45.6....1.7..62.7.6.....68....7....3..9...45.7..8..8..5..... | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) D6,D7: 2.. / D6 = 2 => 1 pairs (_) / D7 = 2 => 2 pairs (_) F1,F3: 7.. / F1 = 7 => 0 pairs (_) / F3 = 7 => 3 pairs (_) A7,C9: 7.. / A7 = 7 => 0 pairs (_) / C9 = 7 => 1 pairs (_) D4,F4: 8.. / D4 = 8 => 7 pairs (_) / F4 = 8 => 1 pairs (_) H5,I5: 8.. / H5 = 8 => 0 pairs (_) / I5 = 8 => 1 pairs (_) D7,E7: 8.. / D7 = 8 => 3 pairs (_) / E7 = 8 => 1 pairs (_) * DURATION: 0:00:03.734531 START: 04:45:55.238785 END: 04:45:58.973316 2020-09-24 * CP COUNT: (6) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) D4,F4: 8.. / D4 = 8 ==> 0 pairs (X) / F4 = 8 => 1 pairs (_) D7,E7: 8.. / D7 = 8 ==> 0 pairs (*) / E7 = 8 => 0 pairs (X) * DURATION: 0:00:18.901118 START: 04:45:58.973995 END: 04:46:17.875113 2020-09-24 * REASONING D4,F4: 8.. * DIS # D4: 8 # C3: 7,8 => CTR => C3: 2,9 * DIS # D4: 8 + C3: 2,9 # E9: 1,2 => CTR => E9: 3,4 * DIS # D4: 8 + C3: 2,9 + E9: 3,4 # A7: 1,2 => CTR => A7: 7 * DIS # D4: 8 + C3: 2,9 + E9: 3,4 + A7: 7 => CTR => D4: 3,9 * STA D4: 3,9 * CNT 4 HDP CHAINS / 22 HYP OPENED * REASONING D7,E7: 8.. * PRF # D7: 8 # F1: 3,7 => SOL * STA # D7: 8 + F1: 3,7 * CNT 1 HDP CHAINS / 6 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
248044;12_12_03;dob;22;11.60;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for D4,F4: 8..:
* INC # D4: 8 # E1: 3,9 => UNS * INC # D4: 8 # E1: 6 => UNS * INC # D4: 8 # D6: 3,9 => UNS * INC # D4: 8 # D6: 1,2 => UNS * INC # D4: 8 # C1: 7,8 => UNS * INC # D4: 8 # H1: 7,8 => UNS * INC # D4: 8 # E2: 1,9 => UNS * INC # D4: 8 # E2: 6 => UNS * INC # D4: 8 # D6: 1,9 => UNS * INC # D4: 8 # D6: 2,3 => UNS * DIS # D4: 8 # C3: 7,8 => CTR => C3: 2,9 * INC # D4: 8 + C3: 2,9 # H3: 7,8 => UNS * INC # D4: 8 + C3: 2,9 # I3: 7,8 => UNS * INC # D4: 8 + C3: 2,9 # H3: 7,8 => UNS * INC # D4: 8 + C3: 2,9 # I3: 7,8 => UNS * INC # D4: 8 + C3: 2,9 # E8: 1,2 => UNS * DIS # D4: 8 + C3: 2,9 # E9: 1,2 => CTR => E9: 3,4 * INC # D4: 8 + C3: 2,9 + E9: 3,4 # E8: 1,2 => UNS * INC # D4: 8 + C3: 2,9 + E9: 3,4 # E8: 3 => UNS * DIS # D4: 8 + C3: 2,9 + E9: 3,4 # A7: 1,2 => CTR => A7: 7 * DIS # D4: 8 + C3: 2,9 + E9: 3,4 + A7: 7 => CTR => D4: 3,9 * INC D4: 3,9 # F4: 8 => UNS * STA D4: 3,9 * CNT 22 HDP CHAINS / 22 HYP OPENED
Full list of HDP chains traversed for D7,E7: 8..:
* INC # D7: 8 # E1: 3,9 => UNS * INC # D7: 8 # E1: 6,8 => UNS * INC # D7: 8 # A1: 3,9 => UNS * INC # D7: 8 # B1: 3,9 => UNS * PRF # D7: 8 # F1: 3,7 => SOL * STA # D7: 8 + F1: 3,7 * CNT 5 HDP CHAINS / 6 HYP OPENED