Analysis of xx-ph-00033187-2012_04-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7.....6...8.9....5....4..9.8..6....3..4..2....1.....1..6.7.......2..5.......3. initial
Autosolve
position: 98.7.....6...8.9....5....4..9.8..6....3..4..2....1.....1..6.7.......2..5.......3. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000008
List of important HDP chains detected for F7,F9: 8..:
* DIS # F7: 8 # I9: 4,9 => CTR => I9: 1,6,8 * PRF # F9: 8 # H5: 5,9 => SOL * STA # F9: 8 + H5: 5,9 * CNT 2 HDP CHAINS / 23 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.....6...8.9....5....4..9.8..6....3..4..2....1.....1..6.7.......2..5.......3. | initial |
| 98.7.....6...8.9....5....4..9.8..6....3..4..2....1.....1..6.7.......2..5.......3. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) E4,D6: 2.. / E4 = 2 => 1 pairs (_) / D6 = 2 => 0 pairs (_) H7,G9: 2.. / H7 = 2 => 0 pairs (_) / G9 = 2 => 1 pairs (_) E1,D2: 4.. / E1 = 4 => 1 pairs (_) / D2 = 4 => 0 pairs (_) C1,E1: 4.. / C1 = 4 => 0 pairs (_) / E1 = 4 => 1 pairs (_) H8,I9: 6.. / H8 = 6 => 0 pairs (_) / I9 = 6 => 1 pairs (_) B5,D5: 6.. / B5 = 6 => 1 pairs (_) / D5 = 6 => 1 pairs (_) H1,H8: 6.. / H1 = 6 => 1 pairs (_) / H8 = 6 => 0 pairs (_) G3,I3: 8.. / G3 = 8 => 2 pairs (_) / I3 = 8 => 1 pairs (_) F7,F9: 8.. / F7 = 8 => 4 pairs (_) / F9 = 8 => 1 pairs (_) * DURATION: 0:00:05.245655 START: 07:44:41.187932 END: 07:44:46.433587 2020-12-12 * CP COUNT: (9) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) F7,F9: 8.. / F7 = 8 ==> 4 pairs (_) / F9 = 8 ==> 0 pairs (*) * DURATION: 0:00:16.415427 START: 07:44:46.434203 END: 07:45:02.849630 2020-12-12 * REASONING F7,F9: 8.. * DIS # F7: 8 # I9: 4,9 => CTR => I9: 1,6,8 * PRF # F9: 8 # H5: 5,9 => SOL * STA # F9: 8 + H5: 5,9 * CNT 2 HDP CHAINS / 23 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
33187;2012_04;GP;21;11.30;11.30;9.90
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for F7,F9: 8..:
* INC # F7: 8 # D2: 3,5 => UNS * INC # F7: 8 # D6: 3,5 => UNS * INC # F7: 8 # C7: 2,9 => UNS * INC # F7: 8 # C7: 4 => UNS * DIS # F7: 8 # I9: 4,9 => CTR => I9: 1,6,8 * INC # F7: 8 + I9: 1,6,8 # C7: 4,9 => UNS * INC # F7: 8 + I9: 1,6,8 # C7: 2 => UNS * INC # F7: 8 + I9: 1,6,8 # I6: 4,9 => UNS * INC # F7: 8 + I9: 1,6,8 # I6: 3,7,8 => UNS * INC # F7: 8 + I9: 1,6,8 # D2: 3,5 => UNS * INC # F7: 8 + I9: 1,6,8 # D6: 3,5 => UNS * INC # F7: 8 + I9: 1,6,8 # C7: 2,9 => UNS * INC # F7: 8 + I9: 1,6,8 # C7: 4 => UNS * INC # F7: 8 + I9: 1,6,8 # C7: 4,9 => UNS * INC # F7: 8 + I9: 1,6,8 # C7: 2 => UNS * INC # F7: 8 + I9: 1,6,8 # I6: 4,9 => UNS * INC # F7: 8 + I9: 1,6,8 # I6: 3,7,8 => UNS * INC # F7: 8 + I9: 1,6,8 => UNS * INC # F9: 8 # D5: 5,9 => UNS * INC # F9: 8 # D6: 5,9 => UNS * INC # F9: 8 # F6: 5,9 => UNS * PRF # F9: 8 # H5: 5,9 => SOL * STA # F9: 8 + H5: 5,9 * CNT 22 HDP CHAINS / 23 HYP OPENED