Analysis of xx-ph-00001418-361-base.sdk
Contents
Original Sudoku
level: deep
position: ...4..7.9..71..2..8......5..8...5.....124....6..........4.2.9.1.6...3...........7 initial
Autosolve
position: ...4..7.9..71..2..8......5..8...5.....124....6....1.....4.2.9.1.6...3........4..7 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000011
List of important HDP chains detected for H1,H4: 1..:
* DIS # H4: 1 # F5: 7,9 => CTR => F5: 6,8 * DIS # H4: 1 + F5: 6,8 # F7: 6,8 => CTR => F7: 7 * DIS # H4: 1 + F5: 6,8 + F7: 7 # B5: 3,5 => CTR => B5: 7,9 * DIS # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 # B6: 7,9 => CTR => B6: 2,3,4,5 * PRF # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 + B6: 2,3,4,5 # B1: 1,2 => SOL * STA # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 + B6: 2,3,4,5 + B1: 1,2 * CNT 5 HDP CHAINS / 22 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
| ...4..7.9..71..2..8......5..8...5.....124....6..........4.2.9.1.6...3...........7 | initial |
| ...4..7.9..71..2..8......5..8...5.....124....6....1.....4.2.9.1.6...3........4..7 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) H1,G3: 1.. / H1 = 1 => 1 pairs (_) / G3 = 1 => 2 pairs (_) G4,H4: 1.. / G4 = 1 => 1 pairs (_) / H4 = 1 => 2 pairs (_) E8,E9: 1.. / E8 = 1 => 0 pairs (_) / E9 = 1 => 1 pairs (_) B3,G3: 1.. / B3 = 1 => 1 pairs (_) / G3 = 1 => 2 pairs (_) A8,E8: 1.. / A8 = 1 => 1 pairs (_) / E8 = 1 => 0 pairs (_) G3,G4: 1.. / G3 = 1 => 2 pairs (_) / G4 = 1 => 1 pairs (_) H1,H4: 1.. / H1 = 1 => 1 pairs (_) / H4 = 1 => 2 pairs (_) F1,F3: 2.. / F1 = 2 => 0 pairs (_) / F3 = 2 => 1 pairs (_) A4,B6: 4.. / A4 = 4 => 0 pairs (_) / B6 = 4 => 0 pairs (_) A2,A4: 4.. / A2 = 4 => 0 pairs (_) / A4 = 4 => 0 pairs (_) E1,E2: 5.. / E1 = 5 => 0 pairs (_) / E2 = 5 => 0 pairs (_) C1,C3: 6.. / C1 = 6 => 1 pairs (_) / C3 = 6 => 1 pairs (_) C8,C9: 8.. / C8 = 8 => 3 pairs (_) / C9 = 8 => 0 pairs (_) * DURATION: 0:00:11.551985 START: 05:35:48.464239 END: 05:36:00.016224 2020-11-28 * CP COUNT: (13) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) C8,C9: 8.. / C8 = 8 ==> 3 pairs (_) / C9 = 8 ==> 0 pairs (_) H1,H4: 1.. / H1 = 1 => 0 pairs (X) / H4 = 1 ==> 0 pairs (*) * DURATION: 0:00:39.711406 START: 05:36:00.016997 END: 05:36:39.728403 2020-11-28 * REASONING H1,H4: 1.. * DIS # H4: 1 # F5: 7,9 => CTR => F5: 6,8 * DIS # H4: 1 + F5: 6,8 # F7: 6,8 => CTR => F7: 7 * DIS # H4: 1 + F5: 6,8 + F7: 7 # B5: 3,5 => CTR => B5: 7,9 * DIS # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 # B6: 7,9 => CTR => B6: 2,3,4,5 * PRF # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 + B6: 2,3,4,5 # B1: 1,2 => SOL * STA # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 + B6: 2,3,4,5 + B1: 1,2 * CNT 5 HDP CHAINS / 22 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
1418;361;elev;21;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for C8,C9: 8..:
* INC # C8: 8 # E8: 7,9 => UNS * INC # C8: 8 # E8: 1 => UNS * INC # C8: 8 # A8: 7,9 => UNS * INC # C8: 8 # A8: 1 => UNS * INC # C8: 8 # D3: 7,9 => UNS * INC # C8: 8 # D4: 7,9 => UNS * INC # C8: 8 # D6: 7,9 => UNS * INC # C8: 8 # I8: 4,5 => UNS * INC # C8: 8 # I8: 2 => UNS * INC # C8: 8 # G6: 4,5 => UNS * INC # C8: 8 # G6: 3,8 => UNS * INC # C8: 8 # I8: 2,4 => UNS * INC # C8: 8 # I8: 5 => UNS * INC # C8: 8 # H4: 2,4 => UNS * INC # C8: 8 # H6: 2,4 => UNS * INC # C8: 8 => UNS * INC # C9: 8 => UNS * CNT 17 HDP CHAINS / 17 HYP OPENED
Full list of HDP chains traversed for H1,H4: 1..:
* INC # H4: 1 # A5: 7,9 => UNS * INC # H4: 1 # B5: 7,9 => UNS * DIS # H4: 1 # F5: 7,9 => CTR => F5: 6,8 * INC # H4: 1 + F5: 6,8 # A5: 7,9 => UNS * INC # H4: 1 + F5: 6,8 # B5: 7,9 => UNS * INC # H4: 1 + F5: 6,8 # B6: 7,9 => UNS * INC # H4: 1 + F5: 6,8 # D6: 7,9 => UNS * INC # H4: 1 + F5: 6,8 # E6: 7,9 => UNS * INC # H4: 1 + F5: 6,8 # G5: 6,8 => UNS * INC # H4: 1 + F5: 6,8 # I5: 6,8 => UNS * INC # H4: 1 + F5: 6,8 # F1: 6,8 => UNS * INC # H4: 1 + F5: 6,8 # F2: 6,8 => UNS * DIS # H4: 1 + F5: 6,8 # F7: 6,8 => CTR => F7: 7 * INC # H4: 1 + F5: 6,8 + F7: 7 # G5: 6,8 => UNS * INC # H4: 1 + F5: 6,8 + F7: 7 # I5: 6,8 => UNS * INC # H4: 1 + F5: 6,8 + F7: 7 # F1: 6,8 => UNS * INC # H4: 1 + F5: 6,8 + F7: 7 # F2: 6,8 => UNS * INC # H4: 1 + F5: 6,8 + F7: 7 # B5: 7,9 => UNS * DIS # H4: 1 + F5: 6,8 + F7: 7 # B5: 3,5 => CTR => B5: 7,9 * DIS # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 # B6: 7,9 => CTR => B6: 2,3,4,5 * PRF # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 + B6: 2,3,4,5 # B1: 1,2 => SOL * STA # H4: 1 + F5: 6,8 + F7: 7 + B5: 7,9 + B6: 2,3,4,5 + B1: 1,2 * CNT 21 HDP CHAINS / 22 HYP OPENED