Analysis of xx-ph-00254280-12_12_03-base.sdk
Contents
Original Sudoku
level: deep
position: ........1..1..2....3..4..5....6..7...8..9..4.6.2..7.....85...9..5......49...8...3 initial
Autosolve
position: ........1..1..2....3..4..5....6..7...8..9..4.6.2..7.....85...9..5......49...8.5.3 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000018
List of important HDP chains detected for F4,D6: 8..:
* DIS # D6: 8 # F7: 1,6 => CTR => F7: 3 * DIS # D6: 8 + F7: 3 # F8: 1,6 => CTR => F8: 9 * DIS # D6: 8 + F7: 3 + F8: 9 # G6: 1,3 => CTR => G6: 9 * PRF # D6: 8 + F7: 3 + F8: 9 + G6: 9 # B9: 6,7 => SOL * STA # D6: 8 + F7: 3 + F8: 9 + G6: 9 + B9: 6,7 * CNT 4 HDP CHAINS / 49 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..1..2....3..4..5....6..7...8..9..4.6.2..7.....85...9..5......49...8...3 | initial |
| ........1..1..2....3..4..5....6..7...8..9..4.6.2..7.....85...9..5......49...8.5.3 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (2) F4: 4,8 D6: 4,8 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) D3,F3: 1.. / D3 = 1 => 3 pairs (_) / F3 = 1 => 4 pairs (_) E4,D5: 2.. / E4 = 2 => 5 pairs (_) / D5 = 2 => 3 pairs (_) G1,G2: 4.. / G1 = 4 => 2 pairs (_) / G2 = 4 => 2 pairs (_) F4,D6: 4.. / F4 = 4 => 6 pairs (_) / D6 = 4 => 1 pairs (_) B6,D6: 4.. / B6 = 4 => 6 pairs (_) / D6 = 4 => 1 pairs (_) D6,D9: 4.. / D6 = 4 => 1 pairs (_) / D9 = 4 => 6 pairs (_) A2,E2: 5.. / A2 = 5 => 2 pairs (_) / E2 = 5 => 5 pairs (_) E6,I6: 5.. / E6 = 5 => 4 pairs (_) / I6 = 5 => 4 pairs (_) F1,F5: 5.. / F1 = 5 => 3 pairs (_) / F5 = 5 => 5 pairs (_) G5,I5: 6.. / G5 = 6 => 4 pairs (_) / I5 = 6 => 3 pairs (_) A5,C5: 7.. / A5 = 7 => 4 pairs (_) / C5 = 7 => 5 pairs (_) F4,D6: 8.. / F4 = 8 => 1 pairs (_) / D6 = 8 => 6 pairs (_) G8,H8: 8.. / G8 = 8 => 2 pairs (_) / H8 = 8 => 3 pairs (_) D8,F8: 9.. / D8 = 9 => 2 pairs (_) / F8 = 9 => 2 pairs (_) * DURATION: 0:00:10.039996 START: 02:03:38.239438 END: 02:03:48.279434 2020-12-24 * CP COUNT: (14) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) F4,D6: 8.. / F4 = 8 => 0 pairs (X) / D6 = 8 ==> 0 pairs (*) * DURATION: 0:00:41.674881 START: 02:03:49.076300 END: 02:04:30.751181 2020-12-24 * REASONING F4,D6: 8.. * DIS # D6: 8 # F7: 1,6 => CTR => F7: 3 * DIS # D6: 8 + F7: 3 # F8: 1,6 => CTR => F8: 9 * DIS # D6: 8 + F7: 3 + F8: 9 # G6: 1,3 => CTR => G6: 9 * PRF # D6: 8 + F7: 3 + F8: 9 + G6: 9 # B9: 6,7 => SOL * STA # D6: 8 + F7: 3 + F8: 9 + G6: 9 + B9: 6,7 * CNT 4 HDP CHAINS / 49 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
254280;12_12_03;dob;22;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for F4,D6: 8..:
* INC # D6: 8 # A5: 1,3 => UNS * INC # D6: 8 # A5: 7 => UNS * INC # D6: 8 # E4: 1,3 => UNS * INC # D6: 8 # H4: 1,3 => UNS * INC # D6: 8 # A8: 1,3 => UNS * INC # D6: 8 # A8: 2,7 => UNS * INC # D6: 8 # H4: 1,3 => UNS * INC # D6: 8 # G5: 1,3 => UNS * INC # D6: 8 # G6: 1,3 => UNS * INC # D6: 8 # E6: 1,3 => UNS * INC # D6: 8 # E6: 5 => UNS * INC # D6: 8 # B7: 6,7 => UNS * INC # D6: 8 # C8: 6,7 => UNS * INC # D6: 8 # B9: 6,7 => UNS * INC # D6: 8 # H9: 6,7 => UNS * INC # D6: 8 # H9: 1,2 => UNS * INC # D6: 8 # C3: 6,7 => UNS * INC # D6: 8 # C3: 9 => UNS * INC # D6: 8 # E7: 1,6 => UNS * DIS # D6: 8 # F7: 1,6 => CTR => F7: 3 * INC # D6: 8 + F7: 3 # E8: 1,6 => UNS * DIS # D6: 8 + F7: 3 # F8: 1,6 => CTR => F8: 9 * INC # D6: 8 + F7: 3 + F8: 9 # B9: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # H9: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # F3: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # F3: 8 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # E7: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # E8: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # B9: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # H9: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # F3: 1,6 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # F3: 8 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # A5: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # A5: 7 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # E4: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # H4: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # A8: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # A8: 2,7 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # E4: 1,5 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # E6: 1,5 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # H4: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 # G5: 1,3 => UNS * DIS # D6: 8 + F7: 3 + F8: 9 # G6: 1,3 => CTR => G6: 9 * INC # D6: 8 + F7: 3 + F8: 9 + G6: 9 # H4: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 + G6: 9 # G5: 1,3 => UNS * INC # D6: 8 + F7: 3 + F8: 9 + G6: 9 # B7: 6,7 => UNS * INC # D6: 8 + F7: 3 + F8: 9 + G6: 9 # C8: 6,7 => UNS * PRF # D6: 8 + F7: 3 + F8: 9 + G6: 9 # B9: 6,7 => SOL * STA # D6: 8 + F7: 3 + F8: 9 + G6: 9 + B9: 6,7 * CNT 48 HDP CHAINS / 49 HYP OPENED