Analysis of xx-ph-00032928-2012_04-base.sdk
Contents
Original Sudoku
level: deep
position: ........1....23.45..25..6....14....2.3...7...8...9......46...5..7..8.2..9........ initial
Autosolve
position: .......21....23.45..25..6....14....2.3...7...8...9......46...5..7..8.2..9........ autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000013
List of important HDP chains detected for A5,B6: 4..:
* DIS # A5: 4 # D9: 1,3 => CTR => D9: 7 * DIS # A5: 4 + D9: 7 # D8: 9 => CTR => D8: 1,3 * PRF # A5: 4 + D9: 7 + D8: 1,3 # B1: 8,9 => SOL * STA # A5: 4 + D9: 7 + D8: 1,3 + B1: 8,9 * CNT 3 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
| ........1....23.45..25..6....14....2.3...7...8...9......46...5..7..8.2..9........ | initial |
| .......21....23.45..25..6....14....2.3...7...8...9......46...5..7..8.2..9........ | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (2) A5: 2,4 B6: 2,4 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) A5,B6: 2.. / A5 = 2 => 2 pairs (_) / B6 = 2 => 5 pairs (_) A5,D5: 2.. / A5 = 2 => 2 pairs (_) / D5 = 2 => 5 pairs (_) A5,A7: 2.. / A5 = 2 => 2 pairs (_) / A7 = 2 => 5 pairs (_) E4,D6: 3.. / E4 = 3 => 4 pairs (_) / D6 = 3 => 4 pairs (_) A5,B6: 4.. / A5 = 4 => 5 pairs (_) / B6 = 4 => 2 pairs (_) F8,I8: 4.. / F8 = 4 => 2 pairs (_) / I8 = 4 => 2 pairs (_) E1,F1: 6.. / E1 = 6 => 4 pairs (_) / F1 = 6 => 4 pairs (_) A4,C6: 7.. / A4 = 7 => 4 pairs (_) / C6 = 7 => 3 pairs (_) F4,D5: 8.. / F4 = 8 => 3 pairs (_) / D5 = 8 => 3 pairs (_) B4,C5: 9.. / B4 = 9 => 3 pairs (_) / C5 = 9 => 3 pairs (_) * DURATION: 0:00:07.710894 START: 02:10:35.146838 END: 02:10:42.857732 2020-12-12 * CP COUNT: (10) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) A5,B6: 4.. / A5 = 4 ==> 0 pairs (*) / B6 = 4 => 0 pairs (X) * DURATION: 0:00:22.289150 START: 02:10:43.690144 END: 02:11:05.979294 2020-12-12 * REASONING A5,B6: 4.. * DIS # A5: 4 # D9: 1,3 => CTR => D9: 7 * DIS # A5: 4 + D9: 7 # D8: 9 => CTR => D8: 1,3 * PRF # A5: 4 + D9: 7 + D8: 1,3 # B1: 8,9 => SOL * STA # A5: 4 + D9: 7 + D8: 1,3 + B1: 8,9 * CNT 3 HDP CHAINS / 20 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
32928;2012_04;dob;22;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for A5,B6: 4..:
* INC # A5: 4 # G6: 1,3 => UNS * INC # A5: 4 # H6: 1,3 => UNS * INC # A5: 4 # D8: 1,3 => UNS * DIS # A5: 4 # D9: 1,3 => CTR => D9: 7 * INC # A5: 4 + D9: 7 # D8: 1,3 => UNS * DIS # A5: 4 + D9: 7 # D8: 9 => CTR => D8: 1,3 * INC # A5: 4 + D9: 7 + D8: 1,3 # G6: 1,3 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # H6: 1,3 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # B9: 1,8 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # B9: 5,6 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # G7: 1,8 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # G7: 3,7 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # B2: 1,8 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # B2: 6,9 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # A1: 3,7 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # C1: 3,7 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # H3: 3,7 => UNS * INC # A5: 4 + D9: 7 + D8: 1,3 # I3: 3,7 => UNS * PRF # A5: 4 + D9: 7 + D8: 1,3 # B1: 8,9 => SOL * STA # A5: 4 + D9: 7 + D8: 1,3 + B1: 8,9 * CNT 19 HDP CHAINS / 20 HYP OPENED