Analysis of xx-ph-00001131-L109-base.sdk
Contents
Original Sudoku
level: deep
position: 1....6.......8.2....93...4..9.7...3..35......8.....6...7.....95.....21....45..... initial
Autosolve
position: 1....6.......8.2....93...4..9.7...3..35......8.....6...7.....95.....21....45..... autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000008
List of important HDP chains detected for A7,C7: 2..:
* DIS # C7: 2 # A5: 2,4 => CTR => A5: 6,7 * DIS # C7: 2 + A5: 6,7 # I8: 6,7 => CTR => I8: 3,4 * DIS # C7: 2 + A5: 6,7 + I8: 3,4 # E8: 6,7 => CTR => E8: 3,4,9 * DIS # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # A3: 5,7 => CTR => A3: 2,6 * PRF # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 # G1: 5,7 => SOL * STA # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 + G1: 5,7 * 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
| 1....6.......8.2....93...4..9.7...3..35......8.....6...7.....95.....21....45..... | initial |
| 1....6.......8.2....93...4..9.7...3..35......8.....6...7.....95.....21....45..... | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) C7,B9: 1.. / C7 = 1 => 4 pairs (_) / B9 = 1 => 1 pairs (_) B6,B9: 1.. / B6 = 1 => 4 pairs (_) / B9 = 1 => 1 pairs (_) A7,C7: 2.. / A7 = 2 => 1 pairs (_) / C7 = 2 => 5 pairs (_) H9,I9: 2.. / H9 = 2 => 0 pairs (_) / I9 = 2 => 0 pairs (_) E6,F6: 3.. / E6 = 3 => 0 pairs (_) / F6 = 3 => 0 pairs (_) G7,I8: 4.. / G7 = 4 => 1 pairs (_) / I8 = 4 => 1 pairs (_) G4,H6: 5.. / G4 = 5 => 3 pairs (_) / H6 = 5 => 2 pairs (_) A8,B8: 5.. / A8 = 5 => 1 pairs (_) / B8 = 5 => 1 pairs (_) A5,C6: 7.. / A5 = 7 => 1 pairs (_) / C6 = 7 => 1 pairs (_) A8,A9: 9.. / A8 = 9 => 2 pairs (_) / A9 = 9 => 0 pairs (_) G1,G5: 9.. / G1 = 9 => 1 pairs (_) / G5 = 9 => 0 pairs (_) * DURATION: 0:00:07.703499 START: 12:44:45.797104 END: 12:44:53.500603 2020-11-25 * CP COUNT: (11) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) A7,C7: 2.. / A7 = 2 => 0 pairs (X) / C7 = 2 ==> 0 pairs (*) * DURATION: 0:00:26.846329 START: 12:44:53.501396 END: 12:45:20.347725 2020-11-25 * REASONING A7,C7: 2.. * DIS # C7: 2 # A5: 2,4 => CTR => A5: 6,7 * DIS # C7: 2 + A5: 6,7 # I8: 6,7 => CTR => I8: 3,4 * DIS # C7: 2 + A5: 6,7 + I8: 3,4 # E8: 6,7 => CTR => E8: 3,4,9 * DIS # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # A3: 5,7 => CTR => A3: 2,6 * PRF # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 # G1: 5,7 => SOL * STA # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 + G1: 5,7 * CNT 5 HDP CHAINS / 31 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
1131;L109;elev;21;11.30;11.30;2.60
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for A7,C7: 2..:
* INC # C7: 2 # E4: 1,6 => UNS * INC # C7: 2 # E4: 2,4,5 => UNS * INC # C7: 2 # A4: 2,4 => UNS * DIS # C7: 2 # A5: 2,4 => CTR => A5: 6,7 * INC # C7: 2 + A5: 6,7 # D6: 2,4 => UNS * INC # C7: 2 + A5: 6,7 # E6: 2,4 => UNS * INC # C7: 2 + A5: 6,7 # I6: 2,4 => UNS * INC # C7: 2 + A5: 6,7 # B1: 2,4 => UNS * INC # C7: 2 + A5: 6,7 # B1: 5,8 => UNS * INC # C7: 2 + A5: 6,7 # H6: 1,7 => UNS * INC # C7: 2 + A5: 6,7 # I6: 1,7 => UNS * INC # C7: 2 + A5: 6,7 # A8: 3,6 => UNS * INC # C7: 2 + A5: 6,7 # C8: 3,6 => UNS * INC # C7: 2 + A5: 6,7 # A9: 3,6 => UNS * INC # C7: 2 + A5: 6,7 # E7: 3,6 => UNS * INC # C7: 2 + A5: 6,7 # E7: 1,4 => UNS * INC # C7: 2 + A5: 6,7 # A2: 3,6 => UNS * INC # C7: 2 + A5: 6,7 # A2: 4,5,7 => UNS * DIS # C7: 2 + A5: 6,7 # I8: 6,7 => CTR => I8: 3,4 * INC # C7: 2 + A5: 6,7 + I8: 3,4 # H9: 6,7 => UNS * INC # C7: 2 + A5: 6,7 + I8: 3,4 # I9: 6,7 => UNS * DIS # C7: 2 + A5: 6,7 + I8: 3,4 # E8: 6,7 => CTR => E8: 3,4,9 * INC # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # B1: 5,8 => UNS * INC # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # B1: 2,4 => UNS * INC # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # G1: 5,7 => UNS * INC # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # G1: 3,9 => UNS * DIS # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 # A3: 5,7 => CTR => A3: 2,6 * INC # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 # E3: 5,7 => UNS * INC # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 # F3: 5,7 => UNS * PRF # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 # G1: 5,7 => SOL * STA # C7: 2 + A5: 6,7 + I8: 3,4 + E8: 3,4,9 + A3: 2,6 + G1: 5,7 * CNT 30 HDP CHAINS / 31 HYP OPENED