Analysis of xx-ph-00001143-L106-base.sdk
Original Sudoku
level: deep
position: .23....8...6...13.7.......5........4...8..36.....45.....16.82.....1.....9...74... initial
Autosolve
position: .23....8...6...13.7.......5........4...8..36.....45.....16.82.....1.....9...74... autosolve
Pair Reduction Variants
Deep Pair Reduction
Time used: 0:00:04.636603
See Appendix: Full HDP Chains for full list of HDP chains.
Deep Constraint Pair Analysis
Time used: 0:00:00.000021
List of important HDP chains detected for I2,H3: 2..:
* PRF # I2: 2 # D2: 7,9 => SOL * STA # I2: 2 + D2: 7,9 * CNT 1 HDP CHAINS / 2 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
| .23....8...6...13.7.......5........4...8..36.....45.....16.82.....1.....9...74... | initial |
| .23....8...6...13.7.......5........4...8..36.....45.....16.82.....1.....9...74... | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (1) H9: 1,5 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) A1,B3: 1.. / A1 = 1 => 1 pairs (_) / B3 = 1 => 2 pairs (_) H9,I9: 1.. / H9 = 1 => 0 pairs (_) / I9 = 1 => 3 pairs (_) I2,H3: 2.. / I2 = 2 => 3 pairs (_) / H3 = 2 => 2 pairs (_) C9,D9: 2.. / C9 = 2 => 2 pairs (_) / D9 = 2 => 3 pairs (_) G4,H4: 5.. / G4 = 5 => 2 pairs (_) / H4 = 5 => 0 pairs (_) A6,B6: 6.. / A6 = 6 => 1 pairs (_) / B6 = 6 => 1 pairs (_) E4,F4: 6.. / E4 = 6 => 1 pairs (_) / F4 = 6 => 1 pairs (_) A6,A8: 6.. / A6 = 6 => 1 pairs (_) / A8 = 6 => 1 pairs (_) E2,E3: 8.. / E2 = 8 => 2 pairs (_) / E3 = 8 => 2 pairs (_) * DURATION: 0:00:07.173077 START: 15:34:50.726668 END: 15:34:57.899745 2020-11-25 * CP COUNT: (9) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) C9,D9: 2.. / C9 = 2 ==> 2 pairs (_) / D9 = 2 ==> 3 pairs (_) I2,H3: 2.. / I2 = 2 ==> 0 pairs (*) / H3 = 2 => 0 pairs (X) * DURATION: 0:00:21.849213 START: 15:35:04.854066 END: 15:35:26.703279 2020-11-25 * REASONING I2,H3: 2.. * PRF # I2: 2 # D2: 7,9 => SOL * STA # I2: 2 + D2: 7,9 * CNT 1 HDP CHAINS / 2 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
1143;L106;elev;22;11.30;11.30;2.60
Appendix: Full HDP Chains
A1. Pair Reduction Analysis
Full list of HDP chains traversed:
* INC # H4: 1,5 => UNS * INC # H4: 2,7,9 => UNS * CNT 2 HDP CHAINS / 2 HYP OPENED
A2. Pair Reduction
Full list of HDP chains traversed:
* INC # H4: 1,5 => UNS * INC # H4: 2,7,9 => UNS * CNT 2 HDP CHAINS / 2 HYP OPENED
A3. Deep Pair Reduction
Full list of HDP chains traversed:
* INC # H4: 1,5 => UNS * INC # H4: 2,7,9 => UNS * INC # H4: 1,5 => UNS * INC # H4: 2,7,9 # G8: 6,8 => UNS * INC # H4: 2,7,9 # I8: 6,8 => UNS * INC # H4: 2,7,9 # I9: 6,8 => UNS * INC # H4: 2,7,9 # B9: 6,8 => UNS * INC # H4: 2,7,9 # B9: 3,5 => UNS * INC # H4: 2,7,9 => UNS * CNT 9 HDP CHAINS / 9 HYP OPENED
A4. Deep Constraint Pair Analysis
Full list of HDP chains traversed for C9,D9: 2..:
* INC # D9: 2 # A8: 5,8 => UNS * INC # D9: 2 # B8: 5,8 => UNS * INC # D9: 2 # C8: 5,8 => UNS * INC # D9: 2 # B9: 5,8 => UNS * INC # D9: 2 # G9: 5,8 => UNS * INC # D9: 2 # G9: 6 => UNS * INC # D9: 2 # E7: 3,9 => UNS * INC # D9: 2 # E8: 3,9 => UNS * INC # D9: 2 # I8: 3,9 => UNS * INC # D9: 2 # I8: 6,7,8 => UNS * INC # D9: 2 # F3: 3,9 => UNS * INC # D9: 2 # F4: 3,9 => UNS * INC # D9: 2 # H4: 1,5 => UNS * INC # D9: 2 # H4: 2,7,9 => UNS * INC # D9: 2 => UNS * INC # C9: 2 # E7: 3,5 => UNS * INC # C9: 2 # E8: 3,5 => UNS * INC # C9: 2 # B9: 3,5 => UNS * INC # C9: 2 # B9: 6,8 => UNS * INC # C9: 2 # H4: 1,5 => UNS * INC # C9: 2 # H4: 2,7,9 => UNS * INC # C9: 2 => UNS * CNT 22 HDP CHAINS / 22 HYP OPENED
Full list of HDP chains traversed for I2,H3: 2..:
* PRF # I2: 2 # D2: 7,9 => SOL * STA # I2: 2 + D2: 7,9 * CNT 1 HDP CHAINS / 2 HYP OPENED