Analysis of xx-ph-00009211-cy4-base.sdk
Contents
Original Sudoku
level: deep
position: 9..8..7...8..6..5...4..3...8..9......6..7...5..3..42...1..2.5....8....1.........6 initial
Autosolve
position: 9..8..7...8..6..5...4..3...8..9......6..7...5..3..42...1..2.5....8....1.........6 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for D6,H6: 6..:
* DIS # H6: 6 # G5: 1,4 => CTR => G5: 3,8,9 * DIS # H6: 6 + G5: 3,8,9 # E6: 1,5 => CTR => E6: 8 * PRF # H6: 6 + G5: 3,8,9 + E6: 8 # C9: 7,9 => SOL * STA # H6: 6 + G5: 3,8,9 + E6: 8 + C9: 7,9 * CNT 3 HDP CHAINS / 13 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
| 9..8..7...8..6..5...4..3...8..9......6..7...5..3..42...1..2.5....8....1.........6 | initial |
| 9..8..7...8..6..5...4..3...8..9......6..7...5..3..42...1..2.5....8....1.........6 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) I8,H9: 2.. / I8 = 2 => 0 pairs (_) / H9 = 2 => 0 pairs (_) B1,A2: 3.. / B1 = 3 => 0 pairs (_) / A2 = 3 => 1 pairs (_) E4,D5: 3.. / E4 = 3 => 1 pairs (_) / D5 = 3 => 2 pairs (_) E1,D2: 4.. / E1 = 4 => 0 pairs (_) / D2 = 4 => 1 pairs (_) B4,A5: 4.. / B4 = 4 => 1 pairs (_) / A5 = 4 => 0 pairs (_) C1,A3: 6.. / C1 = 6 => 1 pairs (_) / A3 = 6 => 0 pairs (_) F4,D6: 6.. / F4 = 6 => 4 pairs (_) / D6 = 6 => 0 pairs (_) C1,H1: 6.. / C1 = 6 => 1 pairs (_) / H1 = 6 => 0 pairs (_) D6,H6: 6.. / D6 = 6 => 0 pairs (_) / H6 = 6 => 4 pairs (_) C1,C7: 6.. / C1 = 6 => 1 pairs (_) / C7 = 6 => 0 pairs (_) G3,G4: 6.. / G3 = 6 => 1 pairs (_) / G4 = 6 => 0 pairs (_) F5,E6: 8.. / F5 = 8 => 1 pairs (_) / E6 = 8 => 1 pairs (_) E6,E9: 8.. / E6 = 8 => 1 pairs (_) / E9 = 8 => 1 pairs (_) F2,E3: 9.. / F2 = 9 => 1 pairs (_) / E3 = 9 => 0 pairs (_) C5,B6: 9.. / C5 = 9 => 2 pairs (_) / B6 = 9 => 1 pairs (_) * DURATION: 0:00:08.693143 START: 02:02:30.867111 END: 02:02:39.560254 2020-12-01 * CP COUNT: (15) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) D6,H6: 6.. / D6 = 6 => 0 pairs (X) / H6 = 6 ==> 0 pairs (*) * DURATION: 0:00:16.138223 START: 02:02:39.560896 END: 02:02:55.699119 2020-12-01 * REASONING D6,H6: 6.. * DIS # H6: 6 # G5: 1,4 => CTR => G5: 3,8,9 * DIS # H6: 6 + G5: 3,8,9 # E6: 1,5 => CTR => E6: 8 * PRF # H6: 6 + G5: 3,8,9 + E6: 8 # C9: 7,9 => SOL * STA # H6: 6 + G5: 3,8,9 + E6: 8 + C9: 7,9 * CNT 3 HDP CHAINS / 13 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
9211;cy4;GP;22;11.30;11.30;10.80
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for D6,H6: 6..:
* DIS # H6: 6 # G5: 1,4 => CTR => G5: 3,8,9 * INC # H6: 6 + G5: 3,8,9 # E4: 1,5 => UNS * DIS # H6: 6 + G5: 3,8,9 # E6: 1,5 => CTR => E6: 8 * INC # H6: 6 + G5: 3,8,9 + E6: 8 # E4: 1,5 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # E4: 3 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # A6: 1,5 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # A6: 7 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # D3: 1,5 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # D9: 1,5 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # B8: 7,9 => UNS * INC # H6: 6 + G5: 3,8,9 + E6: 8 # B9: 7,9 => UNS * PRF # H6: 6 + G5: 3,8,9 + E6: 8 # C9: 7,9 => SOL * STA # H6: 6 + G5: 3,8,9 + E6: 8 + C9: 7,9 * CNT 12 HDP CHAINS / 13 HYP OPENED