Analysis of xx-ph-00000909-722-base.sdk
Contents
Original Sudoku
level: deep
position: .23...7..4....9....6..3..1......8..4.1..6..2....5.....5....2..8.......3...2.7.6.. initial
Autosolve
position: .23...7..4....9....6..3..1......8..4.1..6..2....5.....5....2..8.......3...2.7.6.. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for H1,G3: 4..:
* DIS # G3: 4 # G8: 1,9 => CTR => G8: 2,5 * PRF # G3: 4 + G8: 2,5 # C7: 1,9 => SOL * STA # G3: 4 + G8: 2,5 + C7: 1,9 * CNT 2 HDP CHAINS / 19 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
| .23...7..4....9....6..3..1......8..4.1..6..2....5.....5....2..8.......3...2.7.6.. | initial |
| .23...7..4....9....6..3..1......8..4.1..6..2....5.....5....2..8.......3...2.7.6.. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) A1,C2: 1.. / A1 = 1 => 1 pairs (_) / C2 = 1 => 1 pairs (_) A4,A6: 2.. / A4 = 2 => 1 pairs (_) / A6 = 2 => 0 pairs (_) G8,I8: 2.. / G8 = 2 => 0 pairs (_) / I8 = 2 => 1 pairs (_) A6,E6: 2.. / A6 = 2 => 0 pairs (_) / E6 = 2 => 1 pairs (_) G2,I2: 3.. / G2 = 3 => 0 pairs (_) / I2 = 3 => 0 pairs (_) B7,D7: 3.. / B7 = 3 => 0 pairs (_) / D7 = 3 => 2 pairs (_) H1,G3: 4.. / H1 = 4 => 2 pairs (_) / G3 = 4 => 2 pairs (_) B2,B4: 5.. / B2 = 5 => 1 pairs (_) / B4 = 5 => 1 pairs (_) C7,D7: 6.. / C7 = 6 => 2 pairs (_) / D7 = 6 => 1 pairs (_) F1,F8: 6.. / F1 = 6 => 1 pairs (_) / F8 = 6 => 2 pairs (_) H7,I8: 7.. / H7 = 7 => 0 pairs (_) / I8 = 7 => 4 pairs (_) * DURATION: 0:00:07.528476 START: 04:41:53.683486 END: 04:42:01.211962 2020-11-23 * CP COUNT: (11) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) H7,I8: 7.. / H7 = 7 ==> 0 pairs (_) / I8 = 7 ==> 4 pairs (_) H1,G3: 4.. / H1 = 4 ==> 2 pairs (_) / G3 = 4 ==> 0 pairs (*) * DURATION: 0:00:25.362083 START: 04:42:01.212689 END: 04:42:26.574772 2020-11-23 * REASONING H1,G3: 4.. * DIS # G3: 4 # G8: 1,9 => CTR => G8: 2,5 * PRF # G3: 4 + G8: 2,5 # C7: 1,9 => SOL * STA # G3: 4 + G8: 2,5 + C7: 1,9 * CNT 2 HDP CHAINS / 19 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
909;722;elev;21;11.30;11.30;9.30
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for H7,I8: 7..:
* INC # I8: 7 # B4: 3,7 => UNS * INC # I8: 7 # B6: 3,7 => UNS * INC # I8: 7 # C4: 6,7 => UNS * INC # I8: 7 # C6: 6,7 => UNS * INC # I8: 7 # G7: 4,9 => UNS * INC # I8: 7 # H9: 4,9 => UNS * INC # I8: 7 # E7: 4,9 => UNS * INC # I8: 7 # E7: 1 => UNS * INC # I8: 7 # H1: 4,9 => UNS * INC # I8: 7 # H1: 5,6,8 => UNS * INC # I8: 7 => UNS * INC # H7: 7 => UNS * CNT 12 HDP CHAINS / 12 HYP OPENED
Full list of HDP chains traversed for H1,G3: 4..:
* INC # H1: 4 # I8: 7,9 => UNS * INC # H1: 4 # I8: 1,2,5 => UNS * INC # H1: 4 # B7: 7,9 => UNS * INC # H1: 4 # C7: 7,9 => UNS * INC # H1: 4 # H4: 7,9 => UNS * INC # H1: 4 # H6: 7,9 => UNS * INC # H1: 4 # G8: 5,9 => UNS * INC # H1: 4 # I8: 5,9 => UNS * INC # H1: 4 # I9: 5,9 => UNS * INC # H1: 4 # H4: 5,9 => UNS * INC # H1: 4 # H4: 6,7 => UNS * INC # H1: 4 => UNS * INC # G3: 4 # C3: 5,7 => UNS * INC # G3: 4 # C3: 8,9 => UNS * DIS # G3: 4 # G8: 1,9 => CTR => G8: 2,5 * INC # G3: 4 + G8: 2,5 # I8: 1,9 => UNS * INC # G3: 4 + G8: 2,5 # I9: 1,9 => UNS * PRF # G3: 4 + G8: 2,5 # C7: 1,9 => SOL * STA # G3: 4 + G8: 2,5 + C7: 1,9 * CNT 18 HDP CHAINS / 19 HYP OPENED