Analysis of xx-ph-00000378-H66-base.sdk
Contents
Original Sudoku
level: deep
position: 9876.....65....9............4..3..9...69..8.......2..1..58..7......4...2.....1.3. initial
Autosolve
position: 9876.....65....9............4..3..9...69..8.......2..1..58..7......4...2.....1.3. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000021
List of important HDP chains detected for I7,I9: 9..:
* DIS # I7: 9 # F8: 3,6 => CTR => F8: 5,7,9 * CNT 1 HDP CHAINS / 21 HYP OPENED
List of important HDP chains detected for D4,E5: 1..:
* PRF # D4: 1 # A4: 2,8 => SOL * STA # D4: 1 + A4: 2,8 * CNT 1 HDP CHAINS / 2 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
| 9876.....65....9............4..3..9...69..8.......2..1..58..7......4...2.....1.3. | initial |
| 9876.....65....9............4..3..9...69..8.......2..1..58..7......4...2.....1.3. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (2) F4: 6,8 E6: 6,8 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) D4,E5: 1.. / D4 = 1 => 4 pairs (_) / E5 = 1 => 4 pairs (_) G4,H5: 2.. / G4 = 2 => 3 pairs (_) / H5 = 2 => 3 pairs (_) I5,G6: 3.. / I5 = 3 => 3 pairs (_) / G6 = 3 => 4 pairs (_) F5,D6: 4.. / F5 = 4 => 4 pairs (_) / D6 = 4 => 3 pairs (_) F4,E6: 6.. / F4 = 6 => 4 pairs (_) / E6 = 6 => 2 pairs (_) F4,E6: 8.. / F4 = 8 => 2 pairs (_) / E6 = 8 => 4 pairs (_) H8,I9: 8.. / H8 = 8 => 2 pairs (_) / I9 = 8 => 4 pairs (_) E3,F3: 9.. / E3 = 9 => 3 pairs (_) / F3 = 9 => 3 pairs (_) B6,C6: 9.. / B6 = 9 => 3 pairs (_) / C6 = 9 => 3 pairs (_) I7,I9: 9.. / I7 = 9 => 4 pairs (_) / I9 = 9 => 4 pairs (_) * DURATION: 0:00:06.814368 START: 04:44:30.363284 END: 04:44:37.177652 2020-10-18 * CP COUNT: (10) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) I7,I9: 9.. / I7 = 9 ==> 4 pairs (_) / I9 = 9 ==> 4 pairs (_) D4,E5: 1.. / D4 = 1 ==> 0 pairs (*) / E5 = 1 => 0 pairs (X) * DURATION: 0:00:18.736519 START: 04:44:37.929677 END: 04:44:56.666196 2020-10-18 * REASONING I7,I9: 9.. * DIS # I7: 9 # F8: 3,6 => CTR => F8: 5,7,9 * CNT 1 HDP CHAINS / 21 HYP OPENED * REASONING D4,E5: 1.. * PRF # D4: 1 # A4: 2,8 => SOL * STA # D4: 1 + A4: 2,8 * CNT 1 HDP CHAINS / 2 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
378;H66;GP;22;11.40;11.40;3.40
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for I7,I9: 9..:
* INC # I7: 9 # E9: 2,6 => UNS * INC # I7: 9 # E9: 5,7,9 => UNS * INC # I7: 9 # B7: 2,6 => UNS * INC # I7: 9 # B7: 1,3 => UNS * DIS # I7: 9 # F8: 3,6 => CTR => F8: 5,7,9 * INC # I7: 9 + F8: 5,7,9 # B7: 3,6 => UNS * INC # I7: 9 + F8: 5,7,9 # B7: 1,2 => UNS * INC # I7: 9 + F8: 5,7,9 # E9: 2,6 => UNS * INC # I7: 9 + F8: 5,7,9 # E9: 5,7,9 => UNS * INC # I7: 9 + F8: 5,7,9 # B7: 2,6 => UNS * INC # I7: 9 + F8: 5,7,9 # B7: 1,3 => UNS * INC # I7: 9 + F8: 5,7,9 # B7: 3,6 => UNS * INC # I7: 9 + F8: 5,7,9 # B7: 1,2 => UNS * INC # I7: 9 + F8: 5,7,9 => UNS * INC # I9: 9 # G3: 2,6 => UNS * INC # I9: 9 # G3: 1,3,4 => UNS * INC # I9: 9 # H7: 4,6 => UNS * INC # I9: 9 # G9: 4,6 => UNS * INC # I9: 9 # I3: 4,6 => UNS * INC # I9: 9 # I3: 3,5,7,8 => UNS * INC # I9: 9 => UNS * CNT 21 HDP CHAINS / 21 HYP OPENED
Full list of HDP chains traversed for D4,E5: 1..:
* PRF # D4: 1 # A4: 2,8 => SOL * STA # D4: 1 + A4: 2,8 * CNT 1 HDP CHAINS / 2 HYP OPENED