Analysis of xx-ph-02316276-2019_01_13-base.sdk
Contents
Original Sudoku
level: deep
position: 98.7..6..7..5...84..4.6....8..9...3..2...1..9.....7...5.....3...793....5..8....9. initial
Autosolve
position: 98.7..6..7..5...84..4.6....8..9...3..2...1..9.9...7...5.....3...793....5..8....9. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000006
List of important HDP chains detected for B3,B4: 5..:
* DIS # B4: 5 # C2: 2 => CTR => C2: 1,6 * DIS # B4: 5 + C2: 1,6 # B9: 1,6 => CTR => B9: 4 * DIS # B4: 5 + C2: 1,6 + B9: 4 # F4: 2,4 => CTR => F4: 6 * DIS # B4: 5 + C2: 1,6 + B9: 4 + F4: 6 # A6: 4,6 => CTR => A6: 1 * PRF # B4: 5 + C2: 1,6 + B9: 4 + F4: 6 + A6: 1 => SOL * STA B4: 5 * CNT 5 HDP CHAINS / 7 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
| 98.7..6..7..5...84..4.6....8..9...3..2...1..9.....7...5.....3...793....5..8....9. | initial |
| 98.7..6..7..5...84..4.6....8..9...3..2...1..9.9...7...5.....3...793....5..8....9. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) I1,I3: 3.. / I1 = 3 => 1 pairs (_) / I3 = 3 => 3 pairs (_) E5,E6: 3.. / E5 = 3 => 1 pairs (_) / E6 = 3 => 0 pairs (_) A9,B9: 3.. / A9 = 3 => 2 pairs (_) / B9 = 3 => 2 pairs (_) E1,F1: 4.. / E1 = 4 => 2 pairs (_) / F1 = 4 => 1 pairs (_) C1,B3: 5.. / C1 = 5 => 10 pairs (_) / B3 = 5 => 0 pairs (_) E9,F9: 5.. / E9 = 5 => 3 pairs (_) / F9 = 5 => 0 pairs (_) C1,H1: 5.. / C1 = 5 => 10 pairs (_) / H1 = 5 => 0 pairs (_) B3,B4: 5.. / B3 = 5 => 0 pairs (_) / B4 = 5 => 10 pairs (_) F4,F9: 5.. / F4 = 5 => 3 pairs (_) / F9 = 5 => 0 pairs (_) B2,C2: 6.. / B2 = 6 => 1 pairs (_) / C2 = 6 => 2 pairs (_) C4,C5: 7.. / C4 = 7 => 0 pairs (_) / C5 = 7 => 0 pairs (_) E7,E9: 7.. / E7 = 7 => 2 pairs (_) / E9 = 7 => 0 pairs (_) D3,F3: 8.. / D3 = 8 => 4 pairs (_) / F3 = 8 => 2 pairs (_) I7,G8: 8.. / I7 = 8 => 0 pairs (_) / G8 = 8 => 0 pairs (_) I6,I7: 8.. / I6 = 8 => 0 pairs (_) / I7 = 8 => 0 pairs (_) G2,G3: 9.. / G2 = 9 => 6 pairs (_) / G3 = 9 => 1 pairs (_) E7,F7: 9.. / E7 = 9 => 1 pairs (_) / F7 = 9 => 2 pairs (_) F3,G3: 9.. / F3 = 9 => 6 pairs (_) / G3 = 9 => 1 pairs (_) E2,E7: 9.. / E2 = 9 => 2 pairs (_) / E7 = 9 => 1 pairs (_) * DURATION: 0:00:13.517364 START: 22:20:28.003939 END: 22:20:41.521303 2020-11-06 * CP COUNT: (19) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) B3,B4: 5.. / B3 = 5 => 0 pairs (X) / B4 = 5 ==> 0 pairs (*) * DURATION: 0:00:20.189103 START: 22:20:41.521853 END: 22:21:01.710956 2020-11-06 * REASONING B3,B4: 5.. * DIS # B4: 5 # C2: 2 => CTR => C2: 1,6 * DIS # B4: 5 + C2: 1,6 # B9: 1,6 => CTR => B9: 4 * DIS # B4: 5 + C2: 1,6 + B9: 4 # F4: 2,4 => CTR => F4: 6 * DIS # B4: 5 + C2: 1,6 + B9: 4 + F4: 6 # A6: 4,6 => CTR => A6: 1 * PRF # B4: 5 + C2: 1,6 + B9: 4 + F4: 6 + A6: 1 => SOL * STA B4: 5 * CNT 5 HDP CHAINS / 7 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
2316276;2019_01_13;PAQ;25;11.40;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for B3,B4: 5..:
* INC # B4: 5 # C2: 1,6 => UNS * DIS # B4: 5 # C2: 2 => CTR => C2: 1,6 * INC # B4: 5 + C2: 1,6 # B7: 1,6 => UNS * DIS # B4: 5 + C2: 1,6 # B9: 1,6 => CTR => B9: 4 * DIS # B4: 5 + C2: 1,6 + B9: 4 # F4: 2,4 => CTR => F4: 6 * DIS # B4: 5 + C2: 1,6 + B9: 4 + F4: 6 # A6: 4,6 => CTR => A6: 1 * PRF # B4: 5 + C2: 1,6 + B9: 4 + F4: 6 + A6: 1 => SOL * STA B4: 5 * CNT 7 HDP CHAINS / 7 HYP OPENED