Analysis of xx-ph-00000725-H155-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.....7...6.9....5..4...6..3..7...9.....8...2.....1.3.8..6......5..4......1..2 initial
Autosolve
position: 98.7.....7...6.9....5..4...6..3..7...9.....8...2.....1.3.8..6......5..4......1..2 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000008
List of important HDP chains detected for C4,A6: 8..:
* DIS # A6: 8 # C5: 1,4 => CTR => C5: 3,7 * DIS # A6: 8 + C5: 3,7 # C7: 1,4 => CTR => C7: 7,9 * PRF # A6: 8 + C5: 3,7 + C7: 7,9 # A7: 1,2 => SOL * STA # A6: 8 + C5: 3,7 + C7: 7,9 + A7: 1,2 * CNT 3 HDP CHAINS / 16 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...6.9....5..4...6..3..7...9.....8...2.....1.3.8..6......5..4......1..2 | initial |
| 98.7.....7...6.9....5..4...6..3..7...9.....8...2.....1.3.8..6......5..4......1..2 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) H7,G8: 1.. / H7 = 1 => 1 pairs (_) / G8 = 1 => 1 pairs (_) H4,G5: 2.. / H4 = 2 => 0 pairs (_) / G5 = 2 => 1 pairs (_) F8,E9: 3.. / F8 = 3 => 2 pairs (_) / E9 = 3 => 2 pairs (_) C1,B3: 6.. / C1 = 6 => 3 pairs (_) / B3 = 6 => 0 pairs (_) I5,H6: 6.. / I5 = 6 => 0 pairs (_) / H6 = 6 => 0 pairs (_) H3,I3: 7.. / H3 = 7 => 0 pairs (_) / I3 = 7 => 1 pairs (_) C5,B6: 7.. / C5 = 7 => 2 pairs (_) / B6 = 7 => 0 pairs (_) F2,E3: 8.. / F2 = 8 => 0 pairs (_) / E3 = 8 => 2 pairs (_) C4,A6: 8.. / C4 = 8 => 0 pairs (_) / A6 = 8 => 3 pairs (_) F2,I2: 8.. / F2 = 8 => 0 pairs (_) / I2 = 8 => 2 pairs (_) D3,E3: 9.. / D3 = 9 => 2 pairs (_) / E3 = 9 => 1 pairs (_) * DURATION: 0:00:08.545847 START: 16:42:02.304599 END: 16:42:10.850446 2020-11-21 * CP COUNT: (11) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) C4,A6: 8.. / C4 = 8 => 0 pairs (X) / A6 = 8 ==> 0 pairs (*) * DURATION: 0:00:18.856792 START: 16:42:10.851272 END: 16:42:29.708064 2020-11-21 * REASONING C4,A6: 8.. * DIS # A6: 8 # C5: 1,4 => CTR => C5: 3,7 * DIS # A6: 8 + C5: 3,7 # C7: 1,4 => CTR => C7: 7,9 * PRF # A6: 8 + C5: 3,7 + C7: 7,9 # A7: 1,2 => SOL * STA # A6: 8 + C5: 3,7 + C7: 7,9 + A7: 1,2 * CNT 3 HDP CHAINS / 16 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
725;H155;GP;22;11.30;11.30;10.40
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for C4,A6: 8..:
* INC # A6: 8 # B4: 1,4 => UNS * INC # A6: 8 # A5: 1,4 => UNS * DIS # A6: 8 # C5: 1,4 => CTR => C5: 3,7 * INC # A6: 8 + C5: 3,7 # E4: 1,4 => UNS * INC # A6: 8 + C5: 3,7 # E4: 2,8,9 => UNS * INC # A6: 8 + C5: 3,7 # C1: 1,4 => UNS * INC # A6: 8 + C5: 3,7 # C2: 1,4 => UNS * DIS # A6: 8 + C5: 3,7 # C7: 1,4 => CTR => C7: 7,9 * INC # A6: 8 + C5: 3,7 + C7: 7,9 # B4: 1,4 => UNS * INC # A6: 8 + C5: 3,7 + C7: 7,9 # A5: 1,4 => UNS * INC # A6: 8 + C5: 3,7 + C7: 7,9 # E4: 1,4 => UNS * INC # A6: 8 + C5: 3,7 + C7: 7,9 # E4: 2,8,9 => UNS * INC # A6: 8 + C5: 3,7 + C7: 7,9 # C1: 1,4 => UNS * INC # A6: 8 + C5: 3,7 + C7: 7,9 # C2: 1,4 => UNS * PRF # A6: 8 + C5: 3,7 + C7: 7,9 # A7: 1,2 => SOL * STA # A6: 8 + C5: 3,7 + C7: 7,9 + A7: 1,2 * CNT 15 HDP CHAINS / 16 HYP OPENED