Analysis of xx-ph-00000427-H17-base.sdk
Contents
Original Sudoku
level: deep
position: ..3.....5.9.4...6.1.....7...4...8.......46.2....2....95.....1...6.8...9...7.3.... initial
Autosolve
position: ..3...9.5.9.4...6.1.....7...4...8.......46.2....2....95.....1...6.8...9...7.3.... autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000013
List of important HDP chains detected for G6,H6: 4..:
* DIS # H6: 4 # B5: 3,8 => CTR => B5: 1,5,7 * DIS # H6: 4 + B5: 1,5,7 # B6: 3,8 => CTR => B6: 1,5,7 * DIS # H6: 4 + B5: 1,5,7 + B6: 1,5,7 # G9: 5,8 => CTR => G9: 2,4,6 * DIS # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 # E2: 7,8 => CTR => E2: 1,5 * PRF # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 # A6: 7,8 => SOL * STA # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 + A6: 7,8 * CNT 5 HDP CHAINS / 31 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
| ..3.....5.9.4...6.1.....7...4...8.......46.2....2....95.....1...6.8...9...7.3.... | initial |
| ..3...9.5.9.4...6.1.....7...4...8.......46.2....2....95.....1...6.8...9...7.3.... | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (2) A1: 4,6 C3: 4,6 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) H1,I2: 1.. / H1 = 1 => 3 pairs (_) / I2 = 1 => 3 pairs (_) C8,B9: 1.. / C8 = 1 => 3 pairs (_) / B9 = 1 => 3 pairs (_) A4,C4: 2.. / A4 = 2 => 4 pairs (_) / C4 = 2 => 4 pairs (_) B7,A8: 3.. / B7 = 3 => 3 pairs (_) / A8 = 3 => 3 pairs (_) A1,C3: 4.. / A1 = 4 => 2 pairs (_) / C3 = 4 => 4 pairs (_) G6,H6: 4.. / G6 = 4 => 2 pairs (_) / H6 = 4 => 8 pairs (_) A1,H1: 4.. / A1 = 4 => 2 pairs (_) / H1 = 4 => 4 pairs (_) C2,B3: 5.. / C2 = 5 => 3 pairs (_) / B3 = 5 => 3 pairs (_) A1,C3: 6.. / A1 = 6 => 4 pairs (_) / C3 = 6 => 2 pairs (_) B1,A2: 7.. / B1 = 7 => 5 pairs (_) / A2 = 7 => 3 pairs (_) C7,A9: 9.. / C7 = 9 => 3 pairs (_) / A9 = 9 => 2 pairs (_) * DURATION: 0:00:07.320425 START: 15:43:16.263267 END: 15:43:23.583692 2020-10-25 * CP COUNT: (11) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) G6,H6: 4.. / G6 = 4 => 0 pairs (X) / H6 = 4 ==> 0 pairs (*) * DURATION: 0:00:25.041590 START: 15:43:24.270570 END: 15:43:49.312160 2020-10-25 * REASONING G6,H6: 4.. * DIS # H6: 4 # B5: 3,8 => CTR => B5: 1,5,7 * DIS # H6: 4 + B5: 1,5,7 # B6: 3,8 => CTR => B6: 1,5,7 * DIS # H6: 4 + B5: 1,5,7 + B6: 1,5,7 # G9: 5,8 => CTR => G9: 2,4,6 * DIS # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 # E2: 7,8 => CTR => E2: 1,5 * PRF # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 # A6: 7,8 => SOL * STA # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 + A6: 7,8 * CNT 5 HDP CHAINS / 31 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
427;H17;col;21;11.40;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for G6,H6: 4..:
* INC # H6: 4 # B1: 7,8 => UNS * INC # H6: 4 # B1: 2 => UNS * INC # H6: 4 # E2: 7,8 => UNS * INC # H6: 4 # E2: 1,5 => UNS * INC # H6: 4 # A5: 7,8 => UNS * INC # H6: 4 # A6: 7,8 => UNS * INC # H6: 4 # B3: 5,8 => UNS * INC # H6: 4 # B3: 2 => UNS * INC # H6: 4 # E2: 5,8 => UNS * INC # H6: 4 # E2: 1,7 => UNS * INC # H6: 4 # C5: 5,8 => UNS * INC # H6: 4 # C6: 5,8 => UNS * INC # H6: 4 # I2: 1,8 => UNS * INC # H6: 4 # I2: 2,3 => UNS * INC # H6: 4 # E1: 1,8 => UNS * INC # H6: 4 # E1: 2,6,7 => UNS * INC # H6: 4 # G2: 3,8 => UNS * INC # H6: 4 # I2: 3,8 => UNS * INC # H6: 4 # H7: 3,8 => UNS * INC # H6: 4 # H7: 7 => UNS * INC # H6: 4 # H7: 3,8 => UNS * INC # H6: 4 # I7: 3,8 => UNS * DIS # H6: 4 # B5: 3,8 => CTR => B5: 1,5,7 * DIS # H6: 4 + B5: 1,5,7 # B6: 3,8 => CTR => B6: 1,5,7 * DIS # H6: 4 + B5: 1,5,7 + B6: 1,5,7 # G9: 5,8 => CTR => G9: 2,4,6 * INC # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 # B1: 7,8 => UNS * INC # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 # B1: 2 => UNS * DIS # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 # E2: 7,8 => CTR => E2: 1,5 * INC # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 # A5: 7,8 => UNS * PRF # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 # A6: 7,8 => SOL * STA # H6: 4 + B5: 1,5,7 + B6: 1,5,7 + G9: 2,4,6 + E2: 1,5 + A6: 7,8 * CNT 30 HDP CHAINS / 31 HYP OPENED