Analysis of xx-ph-00001200-H277-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.......7.6........5.7..8....4.3..2......1..65..8..3......2..1......4..89..6.. initial
Autosolve
position: 98.7.......7.6........5.7..8....4.3..2......1..65..8..3......2..1......4..89..6.. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000012
List of important HDP chains detected for C4,A6: 1..:
* DIS # A6: 1 # C5: 5,9 => CTR => C5: 3,4 * PRF # A6: 1 + C5: 3,4 # C8: 5,9 => SOL * STA # A6: 1 + C5: 3,4 + C8: 5,9 * CNT 2 HDP CHAINS / 20 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........5.7..8....4.3..2......1..65..8..3......2..1......4..89..6.. | initial |
| 98.7.......7.6........5.7..8....4.3..2......1..65..8..3......2..1......4..89..6.. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) C4,A6: 1.. / C4 = 1 => 2 pairs (_) / A6 = 1 => 1 pairs (_) G7,H9: 1.. / G7 = 1 => 1 pairs (_) / H9 = 1 => 1 pairs (_) C5,B6: 3.. / C5 = 3 => 1 pairs (_) / B6 = 3 => 2 pairs (_) G8,I9: 3.. / G8 = 3 => 1 pairs (_) / I9 = 3 => 1 pairs (_) A3,B3: 6.. / A3 = 6 => 2 pairs (_) / B3 = 6 => 0 pairs (_) H1,I1: 6.. / H1 = 6 => 1 pairs (_) / I1 = 6 => 1 pairs (_) I4,H5: 6.. / I4 = 6 => 1 pairs (_) / H5 = 6 => 1 pairs (_) B7,A8: 6.. / B7 = 6 => 2 pairs (_) / A8 = 6 => 0 pairs (_) D4,I4: 6.. / D4 = 6 => 1 pairs (_) / I4 = 6 => 1 pairs (_) A3,A8: 6.. / A3 = 6 => 2 pairs (_) / A8 = 6 => 0 pairs (_) B3,B7: 6.. / B3 = 6 => 0 pairs (_) / B7 = 6 => 2 pairs (_) H1,H5: 6.. / H1 = 6 => 1 pairs (_) / H5 = 6 => 1 pairs (_) I1,I4: 6.. / I1 = 6 => 1 pairs (_) / I4 = 6 => 1 pairs (_) I7,H8: 8.. / I7 = 8 => 0 pairs (_) / H8 = 8 => 0 pairs (_) F2,F3: 9.. / F2 = 9 => 0 pairs (_) / F3 = 9 => 0 pairs (_) * DURATION: 0:00:12.033766 START: 04:17:22.317058 END: 04:17:34.350824 2020-11-26 * CP COUNT: (15) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) C5,B6: 3.. / C5 = 3 ==> 1 pairs (_) / B6 = 3 ==> 2 pairs (_) C4,A6: 1.. / C4 = 1 ==> 2 pairs (_) / A6 = 1 ==> 0 pairs (*) * DURATION: 0:00:31.023401 START: 04:17:34.351617 END: 04:18:05.375018 2020-11-26 * REASONING C4,A6: 1.. * DIS # A6: 1 # C5: 5,9 => CTR => C5: 3,4 * PRF # A6: 1 + C5: 3,4 # C8: 5,9 => SOL * STA # A6: 1 + C5: 3,4 + C8: 5,9 * CNT 2 HDP CHAINS / 20 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
1200;H277;GP;22;11.30;11.30;2.60
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for C5,B6: 3..:
* INC # B6: 3 # C1: 4,5 => UNS * INC # B6: 3 # A2: 4,5 => UNS * INC # B6: 3 # G2: 4,5 => UNS * INC # B6: 3 # H2: 4,5 => UNS * INC # B6: 3 # B7: 4,5 => UNS * INC # B6: 3 # B9: 4,5 => UNS * INC # B6: 3 # A3: 4,6 => UNS * INC # B6: 3 # A3: 1,2 => UNS * INC # B6: 3 # B7: 4,6 => UNS * INC # B6: 3 # B7: 5,7,9 => UNS * INC # B6: 3 => UNS * INC # C5: 3 # F5: 6,8 => UNS * INC # C5: 3 # F5: 7 => UNS * INC # C5: 3 # D7: 6,8 => UNS * INC # C5: 3 # D8: 6,8 => UNS * INC # C5: 3 => UNS * CNT 16 HDP CHAINS / 16 HYP OPENED
Full list of HDP chains traversed for C4,A6: 1..:
* INC # C4: 1 # A5: 4,7 => UNS * INC # C4: 1 # B6: 4,7 => UNS * INC # C4: 1 # H6: 4,7 => UNS * INC # C4: 1 # H6: 9 => UNS * INC # C4: 1 # A9: 4,7 => UNS * INC # C4: 1 # A9: 2,5 => UNS * INC # C4: 1 # I4: 2,6 => UNS * INC # C4: 1 # I4: 5,7,9 => UNS * INC # C4: 1 # D8: 2,6 => UNS * INC # C4: 1 # D8: 3,8 => UNS * INC # C4: 1 => UNS * INC # A6: 1 # B4: 5,9 => UNS * DIS # A6: 1 # C5: 5,9 => CTR => C5: 3,4 * INC # A6: 1 + C5: 3,4 # B4: 5,9 => UNS * INC # A6: 1 + C5: 3,4 # B4: 7 => UNS * INC # A6: 1 + C5: 3,4 # G4: 5,9 => UNS * INC # A6: 1 + C5: 3,4 # I4: 5,9 => UNS * INC # A6: 1 + C5: 3,4 # C7: 5,9 => UNS * PRF # A6: 1 + C5: 3,4 # C8: 5,9 => SOL * STA # A6: 1 + C5: 3,4 + C8: 5,9 * CNT 19 HDP CHAINS / 20 HYP OPENED