Analysis of xx-ph-00277555-12_12_03-base.sdk
Original Sudoku
level: deep
position: ........1.....2.....3.4..5...41....2.3..6..7.5....8..9.4.8......76...9..3...7..4. initial
Autosolve
position: ........1.....2.....3.4..5...41....2.3..6..7.5....8..9.4.8......76...9..3...7..4. autosolve
Pair Reduction Variants
Deep Pair Reduction
Time used: 0:00:27.136339
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 C6,D6: 7..:
* PRF # D6: 7 # B6: 1,2 => SOL * STA # D6: 7 + B6: 1,2 * 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
| ........1.....2.....3.4..5...41....2.3..6..7.5....8..9.4.8......76...9..3...7..4. | initial |
| ........1.....2.....3.4..5...41....2.3..6..7.5....8..9.4.8......76...9..3...7..4. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (1) E6: 2,3 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) E2,F3: 1.. / E2 = 1 => 1 pairs (_) / F3 = 1 => 1 pairs (_) A1,A2: 4.. / A1 = 4 => 1 pairs (_) / A2 = 4 => 2 pairs (_) D8,F8: 4.. / D8 = 4 => 2 pairs (_) / F8 = 4 => 2 pairs (_) A1,G1: 4.. / A1 = 4 => 1 pairs (_) / G1 = 4 => 2 pairs (_) D6,G6: 4.. / D6 = 4 => 2 pairs (_) / G6 = 4 => 2 pairs (_) F5,F8: 4.. / F5 = 4 => 2 pairs (_) / F8 = 4 => 2 pairs (_) I2,I5: 4.. / I2 = 4 => 2 pairs (_) / I5 = 4 => 2 pairs (_) A4,C6: 7.. / A4 = 7 => 4 pairs (_) / C6 = 7 => 1 pairs (_) F4,D6: 7.. / F4 = 7 => 1 pairs (_) / D6 = 7 => 4 pairs (_) G7,I7: 7.. / G7 = 7 => 1 pairs (_) / I7 = 7 => 2 pairs (_) A4,F4: 7.. / A4 = 7 => 4 pairs (_) / F4 = 7 => 1 pairs (_) C6,D6: 7.. / C6 = 7 => 1 pairs (_) / D6 = 7 => 4 pairs (_) E1,E2: 8.. / E1 = 8 => 1 pairs (_) / E2 = 8 => 1 pairs (_) H1,H2: 9.. / H1 = 9 => 1 pairs (_) / H2 = 9 => 1 pairs (_) * DURATION: 0:00:09.726922 START: 16:17:05.158308 END: 16:17:14.885230 2020-12-24 * CP COUNT: (14) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) C6,D6: 7.. / C6 = 7 => 0 pairs (X) / D6 = 7 ==> 0 pairs (*) * DURATION: 0:00:18.782099 START: 16:17:45.661726 END: 16:18:04.443825 2020-12-24 * REASONING C6,D6: 7.. * PRF # D6: 7 # B6: 1,2 => SOL * STA # D6: 7 + B6: 1,2 * CNT 1 HDP CHAINS / 12 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
277555;12_12_03;dob;22;11.30;11.30;10.60
Appendix: Full HDP Chains
A1. Pair Reduction Analysis
Full list of HDP chains traversed:
* INC # D6: 2,3 => UNS * INC # D6: 4,7 => UNS * INC # E7: 2,3 => UNS * INC # E8: 2,3 => UNS * CNT 4 HDP CHAINS / 4 HYP OPENED
A2. Pair Reduction
Full list of HDP chains traversed:
* INC # D6: 2,3 => UNS * INC # D6: 4,7 => UNS * INC # E7: 2,3 => UNS * INC # E8: 2,3 => UNS * CNT 4 HDP CHAINS / 4 HYP OPENED
A3. Deep Pair Reduction
Full list of HDP chains traversed:
* INC # D6: 2,3 => UNS * INC # D6: 4,7 => UNS * INC # E7: 2,3 => UNS * INC # E8: 2,3 => UNS * INC # D6: 2,3 # B2: 1,6 => UNS * INC # D6: 2,3 # B3: 1,6 => UNS * INC # D6: 2,3 # D5: 5,9 => UNS * INC # D6: 2,3 # F5: 5,9 => UNS * INC # D6: 2,3 # E1: 5,9 => UNS * INC # D6: 2,3 # E2: 5,9 => UNS * INC # D6: 2,3 # E7: 5,9 => UNS * INC # D6: 2,3 # D8: 2,3 => UNS * INC # D6: 2,3 # D8: 4,5 => UNS * INC # D6: 2,3 # E7: 2,3 => UNS * INC # D6: 2,3 # E8: 2,3 => UNS * INC # D6: 2,3 # G4: 5,8 => UNS * INC # D6: 2,3 # G5: 5,8 => UNS * INC # D6: 2,3 # I8: 5,8 => UNS * INC # D6: 2,3 # I9: 5,8 => UNS * INC # D6: 2,3 # H7: 1,6 => UNS * INC # D6: 2,3 # H7: 2 => UNS * INC # D6: 2,3 => UNS * INC # D6: 4,7 # E7: 2,3 => UNS * INC # D6: 4,7 # E8: 2,3 => UNS * INC # D6: 4,7 => UNS * INC # E7: 2,3 # F4: 5,9 => UNS * INC # E7: 2,3 # D5: 5,9 => UNS * INC # E7: 2,3 # F5: 5,9 => UNS * INC # E7: 2,3 # E1: 5,9 => UNS * INC # E7: 2,3 # E2: 5,9 => UNS * INC # E7: 2,3 # D6: 2,3 => UNS * INC # E7: 2,3 # D6: 4,7 => UNS * INC # E7: 2,3 # D8: 2,3 => UNS * INC # E7: 2,3 # D8: 4,5 => UNS * INC # E7: 2,3 # G7: 2,3 => UNS * INC # E7: 2,3 # H7: 2,3 => UNS * INC # E7: 2,3 # F7: 1,5 => UNS * INC # E7: 2,3 # F8: 1,5 => UNS * INC # E7: 2,3 # F9: 1,5 => UNS * INC # E7: 2,3 # E2: 1,5 => UNS * INC # E7: 2,3 # E2: 8,9 => UNS * INC # E7: 2,3 => UNS * INC # E8: 2,3 # F4: 5,9 => UNS * INC # E8: 2,3 # D5: 5,9 => UNS * INC # E8: 2,3 # F5: 5,9 => UNS * INC # E8: 2,3 # E1: 5,9 => UNS * INC # E8: 2,3 # E2: 5,9 => UNS * INC # E8: 2,3 # E7: 5,9 => UNS * INC # E8: 2,3 # D6: 2,3 => UNS * INC # E8: 2,3 # D6: 4,7 => UNS * INC # E8: 2,3 # D8: 2,3 => UNS * INC # E8: 2,3 # D8: 4,5 => UNS * INC # E8: 2,3 # H8: 2,3 => UNS * INC # E8: 2,3 # H8: 1,8 => UNS * INC # E8: 2,3 => UNS * CNT 55 HDP CHAINS / 55 HYP OPENED
A4. Deep Constraint Pair Analysis
Full list of HDP chains traversed for C6,D6: 7..:
* INC # D6: 7 # D1: 6,9 => UNS * INC # D6: 7 # F1: 6,9 => UNS * INC # D6: 7 # D2: 6,9 => UNS * INC # D6: 7 # F3: 6,9 => UNS * INC # D6: 7 # A3: 6,9 => UNS * INC # D6: 7 # A3: 1,2,8 => UNS * INC # D6: 7 # D9: 6,9 => UNS * INC # D6: 7 # D9: 2,5 => UNS * INC # D6: 7 # A5: 1,2 => UNS * INC # D6: 7 # C5: 1,2 => UNS * PRF # D6: 7 # B6: 1,2 => SOL * STA # D6: 7 + B6: 1,2 * CNT 11 HDP CHAINS / 12 HYP OPENED