Analysis of xx-ph-00001453-H47-base.sdk
Contents
Original Sudoku
level: deep
position: .2.4....9..6.8....7......5..4.9....18....7.....5.6.....1....94......1..3...39.2.. initial
Autosolve
position: .2.4....9..6.8....7......5..4.9....18....7.....5.6.....1....94......1..3...39.21. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000007
List of important HDP chains detected for A6,D6: 1..:
* DIS # D6: 1 # C3: 3,8 => CTR => C3: 4,9 * PRF # D6: 1 + C3: 4,9 # D7: 2,6 => SOL * STA # D6: 1 + C3: 4,9 + D7: 2,6 * CNT 2 HDP CHAINS / 14 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
| .2.4....9..6.8....7......5..4.9....18....7.....5.6.....1....94......1..3...39.2.. | initial |
| .2.4....9..6.8....7......5..4.9....18....7.....5.6.....1....94......1..3...39.21. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) C5,A6: 1.. / C5 = 1 => 3 pairs (_) / A6 = 1 => 2 pairs (_) A6,D6: 1.. / A6 = 1 => 2 pairs (_) / D6 = 1 => 3 pairs (_) A7,C7: 3.. / A7 = 3 => 2 pairs (_) / C7 = 3 => 2 pairs (_) A2,C3: 4.. / A2 = 4 => 2 pairs (_) / C3 = 4 => 1 pairs (_) E5,F6: 4.. / E5 = 4 => 3 pairs (_) / F6 = 4 => 0 pairs (_) E8,F9: 4.. / E8 = 4 => 0 pairs (_) / F9 = 4 => 3 pairs (_) E5,E8: 4.. / E5 = 4 => 3 pairs (_) / E8 = 4 => 0 pairs (_) F6,F9: 4.. / F6 = 4 => 0 pairs (_) / F9 = 4 => 3 pairs (_) A4,B5: 6.. / A4 = 6 => 2 pairs (_) / B5 = 6 => 1 pairs (_) E1,D2: 7.. / E1 = 7 => 1 pairs (_) / D2 = 7 => 2 pairs (_) C4,B6: 7.. / C4 = 7 => 2 pairs (_) / B6 = 7 => 1 pairs (_) F2,F3: 9.. / F2 = 9 => 1 pairs (_) / F3 = 9 => 1 pairs (_) H5,H6: 9.. / H5 = 9 => 1 pairs (_) / H6 = 9 => 1 pairs (_) * DURATION: 0:00:08.817853 START: 12:09:10.316684 END: 12:09:19.134537 2020-11-28 * CP COUNT: (13) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) A6,D6: 1.. / A6 = 1 => 0 pairs (X) / D6 = 1 ==> 0 pairs (*) * DURATION: 0:00:17.727105 START: 12:09:19.135166 END: 12:09:36.862271 2020-11-28 * REASONING A6,D6: 1.. * DIS # D6: 1 # C3: 3,8 => CTR => C3: 4,9 * PRF # D6: 1 + C3: 4,9 # D7: 2,6 => SOL * STA # D6: 1 + C3: 4,9 + D7: 2,6 * CNT 2 HDP CHAINS / 14 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
1453;H47;elev;22;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for A6,D6: 1..:
* INC # D6: 1 # B3: 3,8 => UNS * DIS # D6: 1 # C3: 3,8 => CTR => C3: 4,9 * INC # D6: 1 + C3: 4,9 # B3: 3,8 => UNS * INC # D6: 1 + C3: 4,9 # B3: 9 => UNS * INC # D6: 1 + C3: 4,9 # G1: 3,8 => UNS * INC # D6: 1 + C3: 4,9 # H1: 3,8 => UNS * INC # D6: 1 + C3: 4,9 # C7: 3,8 => UNS * INC # D6: 1 + C3: 4,9 # C7: 2,7 => UNS * INC # D6: 1 + C3: 4,9 # F3: 2,6 => UNS * INC # D6: 1 + C3: 4,9 # F3: 3,9 => UNS * INC # D6: 1 + C3: 4,9 # I3: 2,6 => UNS * INC # D6: 1 + C3: 4,9 # I3: 4,8 => UNS * PRF # D6: 1 + C3: 4,9 # D7: 2,6 => SOL * STA # D6: 1 + C3: 4,9 + D7: 2,6 * CNT 13 HDP CHAINS / 14 HYP OPENED