Analysis of xx-ph-00000772-960-base.sdk
Contents
Original Sudoku
level: deep
position: 1.......9..67...2..8...3.....76...4..3..1....96...8.....5...2.7.......5....5..4.6 initial
Autosolve
position: 1.......9..67...2..8...3.....76...4..3..1....96...8.....5...2.7.......5....5..4.6 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000018
List of important HDP chains detected for F5,E6: 7..:
* DIS # E6: 7 # E4: 2,5 => CTR => E4: 3 * DIS # E6: 7 + E4: 3 # H1: 6,7 => CTR => H1: 3,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 # I4: 1 => CTR => I4: 2,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 # A5: 2,8 => CTR => A5: 4,5 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 # C5: 4 => CTR => C5: 2,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 # H7: 1,3 => CTR => H7: 8,9 * PRF # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 + H7: 8,9 # H9: 1,3 => SOL * STA # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 + H7: 8,9 + H9: 1,3 * CNT 7 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.......9..67...2..8...3.....76...4..3..1....96...8.....5...2.7.......5....5..4.6 | initial |
| 1.......9..67...2..8...3.....76...4..3..1....96...8.....5...2.7.......5....5..4.6 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) F2,D3: 1.. / F2 = 1 => 0 pairs (_) / D3 = 1 => 2 pairs (_) B4,C6: 1.. / B4 = 1 => 3 pairs (_) / C6 = 1 => 3 pairs (_) C1,A2: 3.. / C1 = 3 => 1 pairs (_) / A2 = 3 => 1 pairs (_) I2,I3: 4.. / I2 = 4 => 3 pairs (_) / I3 = 4 => 1 pairs (_) G5,H5: 6.. / G5 = 6 => 0 pairs (_) / H5 = 6 => 1 pairs (_) A7,A8: 6.. / A7 = 6 => 0 pairs (_) / A8 = 6 => 0 pairs (_) B1,A3: 7.. / B1 = 7 => 0 pairs (_) / A3 = 7 => 1 pairs (_) F5,E6: 7.. / F5 = 7 => 0 pairs (_) / E6 = 7 => 6 pairs (_) B2,C3: 9.. / B2 = 9 => 2 pairs (_) / C3 = 9 => 1 pairs (_) * DURATION: 0:00:06.637812 START: 02:13:15.410109 END: 02:13:22.047921 2020-11-22 * CP COUNT: (9) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) F5,E6: 7.. / F5 = 7 => 0 pairs (X) / E6 = 7 ==> 0 pairs (*) * DURATION: 0:00:21.948833 START: 02:13:22.049260 END: 02:13:43.998093 2020-11-22 * REASONING F5,E6: 7.. * DIS # E6: 7 # E4: 2,5 => CTR => E4: 3 * DIS # E6: 7 + E4: 3 # H1: 6,7 => CTR => H1: 3,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 # I4: 1 => CTR => I4: 2,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 # A5: 2,8 => CTR => A5: 4,5 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 # C5: 4 => CTR => C5: 2,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 # H7: 1,3 => CTR => H7: 8,9 * PRF # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 + H7: 8,9 # H9: 1,3 => SOL * STA # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 + H7: 8,9 + H9: 1,3 * CNT 7 HDP CHAINS / 20 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
772;960;elev;22;11.30;11.30;10.00
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for F5,E6: 7..:
* DIS # E6: 7 # E4: 2,5 => CTR => E4: 3 * INC # E6: 7 + E4: 3 # F5: 2,5 => UNS * INC # E6: 7 + E4: 3 # F5: 2,5 => UNS * INC # E6: 7 + E4: 3 # F5: 4,9 => UNS * INC # E6: 7 + E4: 3 # A4: 2,5 => UNS * INC # E6: 7 + E4: 3 # B4: 2,5 => UNS * INC # E6: 7 + E4: 3 # G1: 6,7 => UNS * INC # E6: 7 + E4: 3 # G3: 6,7 => UNS * DIS # E6: 7 + E4: 3 # H1: 6,7 => CTR => H1: 3,8 * INC # E6: 7 + E4: 3 + H1: 3,8 # I4: 2,8 => UNS * DIS # E6: 7 + E4: 3 + H1: 3,8 # I4: 1 => CTR => I4: 2,8 * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 # A5: 2,8 => CTR => A5: 4,5 * INC # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 # C5: 2,8 => UNS * INC # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 # C5: 2,8 => UNS * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 # C5: 4 => CTR => C5: 2,8 * INC # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 # G6: 1,3 => UNS * INC # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 # I6: 1,3 => UNS * DIS # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 # H7: 1,3 => CTR => H7: 8,9 * PRF # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 + H7: 8,9 # H9: 1,3 => SOL * STA # E6: 7 + E4: 3 + H1: 3,8 + I4: 2,8 + A5: 4,5 + C5: 2,8 + H7: 8,9 + H9: 1,3 * CNT 19 HDP CHAINS / 20 HYP OPENED