Analysis of xx-ph-00001204-H287-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.....7...9.6....5..4...6..3..7...9.........2....31.3.9..8......1..4......5..2 initial
Autosolve
position: 98.7.....7...9.6....5..4...6..3..7...9.........2....31.3.9..8......1..4......5..2 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for F6,G6: 9..:
* DIS # G6: 9 # H9: 1,6 => CTR => H9: 7,9 * DIS # G6: 9 + H9: 7,9 # I8: 3,5 => CTR => I8: 6,7,9 * DIS # G6: 9 + H9: 7,9 + I8: 6,7,9 # G1: 1,2 => CTR => G1: 4,5 * DIS # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 # A3: 1,2 => CTR => A3: 3 * PRF # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 # D3: 1,2 => SOL * STA # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 + D3: 1,2 * CNT 5 HDP CHAINS / 12 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...9.6....5..4...6..3..7...9.........2....31.3.9..8......1..4......5..2 | initial |
| 98.7.....7...9.6....5..4...6..3..7...9.........2....31.3.9..8......1..4......5..2 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) A5,C5: 3.. / A5 = 3 => 1 pairs (_) / C5 = 3 => 2 pairs (_) F8,E9: 3.. / F8 = 3 => 2 pairs (_) / E9 = 3 => 1 pairs (_) E9,G9: 3.. / E9 = 3 => 1 pairs (_) / G9 = 3 => 2 pairs (_) A3,A5: 3.. / A3 = 3 => 2 pairs (_) / A5 = 3 => 1 pairs (_) E1,D2: 5.. / E1 = 5 => 2 pairs (_) / D2 = 5 => 0 pairs (_) C1,B3: 6.. / C1 = 6 => 1 pairs (_) / B3 = 6 => 0 pairs (_) H5,I5: 6.. / H5 = 6 => 0 pairs (_) / I5 = 6 => 1 pairs (_) H3,I3: 7.. / H3 = 7 => 0 pairs (_) / I3 = 7 => 1 pairs (_) C5,B6: 7.. / C5 = 7 => 2 pairs (_) / B6 = 7 => 0 pairs (_) F4,F6: 9.. / F4 = 9 => 4 pairs (_) / F6 = 9 => 1 pairs (_) C8,C9: 9.. / C8 = 9 => 1 pairs (_) / C9 = 9 => 1 pairs (_) F6,G6: 9.. / F6 = 9 => 1 pairs (_) / G6 = 9 => 4 pairs (_) * DURATION: 0:00:09.658711 START: 05:05:01.628545 END: 05:05:11.287256 2020-11-26 * CP COUNT: (12) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) F6,G6: 9.. / F6 = 9 => 0 pairs (X) / G6 = 9 ==> 0 pairs (*) * DURATION: 0:00:20.021561 START: 05:05:11.287854 END: 05:05:31.309415 2020-11-26 * REASONING F6,G6: 9.. * DIS # G6: 9 # H9: 1,6 => CTR => H9: 7,9 * DIS # G6: 9 + H9: 7,9 # I8: 3,5 => CTR => I8: 6,7,9 * DIS # G6: 9 + H9: 7,9 + I8: 6,7,9 # G1: 1,2 => CTR => G1: 4,5 * DIS # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 # A3: 1,2 => CTR => A3: 3 * PRF # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 # D3: 1,2 => SOL * STA # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 + D3: 1,2 * CNT 5 HDP CHAINS / 12 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
1204;H287;GP;22;11.30;11.30;2.60
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for F6,G6: 9..:
* INC # G6: 9 # H9: 7,9 => UNS * DIS # G6: 9 # H9: 1,6 => CTR => H9: 7,9 * INC # G6: 9 + H9: 7,9 # I8: 7,9 => UNS * INC # G6: 9 + H9: 7,9 # I8: 3,5,6 => UNS * DIS # G6: 9 + H9: 7,9 # I8: 3,5 => CTR => I8: 6,7,9 * DIS # G6: 9 + H9: 7,9 + I8: 6,7,9 # G1: 1,2 => CTR => G1: 4,5 * INC # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 # H1: 1,2 => UNS * INC # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 # H2: 1,2 => UNS * DIS # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 # A3: 1,2 => CTR => A3: 3 * INC # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 # B3: 1,2 => UNS * PRF # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 # D3: 1,2 => SOL * STA # G6: 9 + H9: 7,9 + I8: 6,7,9 + G1: 4,5 + A3: 3 + D3: 1,2 * CNT 11 HDP CHAINS / 12 HYP OPENED