Analysis of xx-ph-00001477-L122-base.sdk
Original Sudoku
level: deep
position: ....5.7.........3..8...1..62....8..4.149......6..4......2..4..1...3...5.8...7.9.. initial
Autosolve
position: ....5.7.........3..8...1..62....8..4.149......68.4......2..4..1...3...5.8...7.9.. autosolve
Pair Reduction Variants
Deep Pair Reduction
Time used: 0:00:34.798039
The following important HDP chains were detected:
* DIS # I6: 2,3 # H1: 2,4 => CTR => H1: 1,8 * CNT 1 HDP CHAINS / 47 HYP OPENED
See Appendix: Full HDP Chains for full list of HDP chains.
Deep Constraint Pair Analysis
Time used: 0:00:00.000017
List of important HDP chains detected for B9,H9: 4..:
* PRF # B9: 4 # D9: 2,6 => SOL * STA # B9: 4 + D9: 2,6 * CNT 1 HDP CHAINS / 12 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
| ....5.7.........3..8...1..62....8..4.149......6..4......2..4..1...3...5.8...7.9.. | initial |
| ....5.7.........3..8...1..62....8..4.149......68.4......2..4..1...3...5.8...7.9.. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (1) I9: 2,3 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) H1,G2: 1.. / H1 = 1 => 1 pairs (_) / G2 = 1 => 1 pairs (_) E8,D9: 1.. / E8 = 1 => 4 pairs (_) / D9 = 1 => 1 pairs (_) C9,D9: 1.. / C9 = 1 => 4 pairs (_) / D9 = 1 => 1 pairs (_) E4,E8: 1.. / E4 = 1 => 1 pairs (_) / E8 = 1 => 4 pairs (_) B1,B2: 2.. / B1 = 2 => 2 pairs (_) / B2 = 2 => 1 pairs (_) F1,E3: 3.. / F1 = 3 => 2 pairs (_) / E3 = 3 => 3 pairs (_) G7,I9: 3.. / G7 = 3 => 4 pairs (_) / I9 = 3 => 2 pairs (_) G8,H9: 4.. / G8 = 4 => 4 pairs (_) / H9 = 4 => 3 pairs (_) B9,H9: 4.. / B9 = 4 => 4 pairs (_) / H9 = 4 => 3 pairs (_) H7,I8: 7.. / H7 = 7 => 2 pairs (_) / I8 = 7 => 3 pairs (_) * DURATION: 0:00:10.852766 START: 16:45:42.950309 END: 16:45:53.803075 2020-11-28 * CP COUNT: (10) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) B9,H9: 4.. / B9 = 4 ==> 0 pairs (*) / H9 = 4 => 0 pairs (X) * DURATION: 0:00:19.225997 START: 16:46:31.436560 END: 16:46:50.662557 2020-11-28 * REASONING B9,H9: 4.. * PRF # B9: 4 # D9: 2,6 => SOL * STA # B9: 4 + D9: 2,6 * CNT 1 HDP CHAINS / 12 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
1477;L122;elev;22;11.30;1.20;1.20
Appendix: Full HDP Chains
A1. Pair Reduction Analysis
Full list of HDP chains traversed:
* INC # I5: 2,3 => UNS * INC # I6: 2,3 => UNS * CNT 2 HDP CHAINS / 2 HYP OPENED
A2. Pair Reduction
Full list of HDP chains traversed:
* INC # I5: 2,3 => UNS * INC # I6: 2,3 => UNS * CNT 2 HDP CHAINS / 2 HYP OPENED
A3. Deep Pair Reduction
Full list of HDP chains traversed:
* INC # I5: 2,3 => UNS * INC # I6: 2,3 => UNS * INC # I5: 2,3 # H1: 8,9 => UNS * INC # I5: 2,3 # I2: 8,9 => UNS * INC # I5: 2,3 # G5: 2,3 => UNS * INC # I5: 2,3 # G6: 2,3 => UNS * INC # I5: 2,3 # E5: 2,3 => UNS * INC # I5: 2,3 # F5: 2,3 => UNS * INC # I5: 2,3 # H7: 7,8 => UNS * INC # I5: 2,3 # H7: 6 => UNS * INC # I5: 2,3 => UNS * INC # I6: 2,3 # I2: 8,9 => UNS * INC # I6: 2,3 # I2: 5 => UNS * DIS # I6: 2,3 # H1: 2,4 => CTR => H1: 1,8 * INC # I6: 2,3 + H1: 1,8 # G2: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # G3: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # D3: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # D3: 7 => UNS * INC # I6: 2,3 + H1: 1,8 # H9: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # H9: 6 => UNS * INC # I6: 2,3 + H1: 1,8 # G5: 2,3 => UNS * INC # I6: 2,3 + H1: 1,8 # G6: 2,3 => UNS * INC # I6: 2,3 + H1: 1,8 # F6: 2,3 => UNS * INC # I6: 2,3 + H1: 1,8 # F6: 5,7 => UNS * INC # I6: 2,3 + H1: 1,8 # H7: 7,8 => UNS * INC # I6: 2,3 + H1: 1,8 # H7: 6 => UNS * INC # I6: 2,3 + H1: 1,8 # I5: 7,8 => UNS * INC # I6: 2,3 + H1: 1,8 # I5: 5 => UNS * INC # I6: 2,3 + H1: 1,8 # G2: 1,8 => UNS * INC # I6: 2,3 + H1: 1,8 # G2: 2,4,5 => UNS * INC # I6: 2,3 + H1: 1,8 # I2: 8,9 => UNS * INC # I6: 2,3 + H1: 1,8 # I2: 5 => UNS * INC # I6: 2,3 + H1: 1,8 # G2: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # G3: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # D3: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # D3: 7 => UNS * INC # I6: 2,3 + H1: 1,8 # H9: 2,4 => UNS * INC # I6: 2,3 + H1: 1,8 # H9: 6 => UNS * INC # I6: 2,3 + H1: 1,8 # G5: 2,3 => UNS * INC # I6: 2,3 + H1: 1,8 # G6: 2,3 => UNS * INC # I6: 2,3 + H1: 1,8 # F6: 2,3 => UNS * INC # I6: 2,3 + H1: 1,8 # F6: 5,7 => UNS * INC # I6: 2,3 + H1: 1,8 # H7: 7,8 => UNS * INC # I6: 2,3 + H1: 1,8 # H7: 6 => UNS * INC # I6: 2,3 + H1: 1,8 # I5: 7,8 => UNS * INC # I6: 2,3 + H1: 1,8 # I5: 5 => UNS * INC # I6: 2,3 + H1: 1,8 => UNS * CNT 47 HDP CHAINS / 47 HYP OPENED
A4. Deep Constraint Pair Analysis
Full list of HDP chains traversed for B9,H9: 4..:
* INC # B9: 4 # G2: 2,5 => UNS * INC # B9: 4 # I2: 2,5 => UNS * INC # B9: 4 # G5: 2,5 => UNS * INC # B9: 4 # G6: 2,5 => UNS * INC # B9: 4 # A7: 7,9 => UNS * INC # B9: 4 # B7: 7,9 => UNS * INC # B9: 4 # A8: 7,9 => UNS * INC # B9: 4 # C8: 7,9 => UNS * INC # B9: 4 # B2: 7,9 => UNS * INC # B9: 4 # B4: 7,9 => UNS * PRF # B9: 4 # D9: 2,6 => SOL * STA # B9: 4 + D9: 2,6 * CNT 11 HDP CHAINS / 12 HYP OPENED