Analysis of xx-ph-00000774-961-base.sdk
Contents
Original Sudoku
level: deep
position: 1.....7.94.7.......8.....5..3.6.......4.9.6..9...1...2...5...6...2.7...1.....83.. initial
Autosolve
position: 1.....7.94.7.......8.....5..3.6.......4.9.6..9...1...2...5...6...2.7...1.....83.. autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000006
List of important HDP chains detected for B5,H5: 1..:
* DIS # B5: 1 # C3: 3,6 => CTR => C3: 9 * DIS # B5: 1 + C3: 9 # C1: 5 => CTR => C1: 3,6 * DIS # B5: 1 + C3: 9 + C1: 3,6 # F3: 3,6 => CTR => F3: 1,2,4,7 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 # A8: 3,6 => CTR => A8: 5,8 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 # I3: 3,6 => CTR => I3: 4 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 # A4: 5,8 => CTR => A4: 2,7 * PRF # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 + A4: 2,7 # A5: 5,8 => SOL * STA # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 + A4: 2,7 + A5: 5,8 * CNT 7 HDP CHAINS / 13 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.....7.94.7.......8.....5..3.6.......4.9.6..9...1...2...5...6...2.7...1.....83.. | initial |
| 1.....7.94.7.......8.....5..3.6.......4.9.6..9...1...2...5...6...2.7...1.....83.. | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) C4,B5: 1.. / C4 = 1 => 0 pairs (_) / B5 = 1 => 4 pairs (_) F7,D9: 1.. / F7 = 1 => 0 pairs (_) / D9 = 1 => 0 pairs (_) B5,H5: 1.. / B5 = 1 => 4 pairs (_) / H5 = 1 => 0 pairs (_) G7,H9: 2.. / G7 = 2 => 3 pairs (_) / H9 = 2 => 1 pairs (_) G8,I9: 5.. / G8 = 5 => 2 pairs (_) / I9 = 5 => 1 pairs (_) I2,I3: 6.. / I2 = 6 => 1 pairs (_) / I3 = 6 => 3 pairs (_) B6,C6: 6.. / B6 = 6 => 2 pairs (_) / C6 = 6 => 3 pairs (_) F8,E9: 6.. / F8 = 6 => 1 pairs (_) / E9 = 6 => 1 pairs (_) D3,F3: 7.. / D3 = 7 => 0 pairs (_) / F3 = 7 => 0 pairs (_) B2,C3: 9.. / B2 = 9 => 4 pairs (_) / C3 = 9 => 0 pairs (_) G4,H4: 9.. / G4 = 9 => 0 pairs (_) / H4 = 9 => 1 pairs (_) * DURATION: 0:00:07.891620 START: 02:33:28.315219 END: 02:33:36.206839 2020-11-22 * CP COUNT: (11) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) B2,C3: 9.. / B2 = 9 ==> 4 pairs (_) / C3 = 9 ==> 0 pairs (_) B5,H5: 1.. / B5 = 1 ==> 0 pairs (*) / H5 = 1 => 0 pairs (X) * DURATION: 0:00:26.773936 START: 02:33:36.207595 END: 02:34:02.981531 2020-11-22 * REASONING B5,H5: 1.. * DIS # B5: 1 # C3: 3,6 => CTR => C3: 9 * DIS # B5: 1 + C3: 9 # C1: 5 => CTR => C1: 3,6 * DIS # B5: 1 + C3: 9 + C1: 3,6 # F3: 3,6 => CTR => F3: 1,2,4,7 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 # A8: 3,6 => CTR => A8: 5,8 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 # I3: 3,6 => CTR => I3: 4 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 # A4: 5,8 => CTR => A4: 2,7 * PRF # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 + A4: 2,7 # A5: 5,8 => SOL * STA # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 + A4: 2,7 + A5: 5,8 * CNT 7 HDP CHAINS / 13 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
774;961;elev;22;11.30;11.30;10.00
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for B2,C3: 9..:
* INC # B2: 9 # C1: 3,6 => UNS * INC # B2: 9 # A3: 3,6 => UNS * INC # B2: 9 # E3: 3,6 => UNS * INC # B2: 9 # I3: 3,6 => UNS * INC # B2: 9 # H1: 2,8 => UNS * INC # B2: 9 # H2: 2,8 => UNS * INC # B2: 9 # D2: 2,8 => UNS * INC # B2: 9 # E2: 2,8 => UNS * INC # B2: 9 # G7: 2,8 => UNS * INC # B2: 9 # G7: 4,9 => UNS * INC # B2: 9 => UNS * INC # C3: 9 => UNS * CNT 12 HDP CHAINS / 12 HYP OPENED
Full list of HDP chains traversed for B5,H5: 1..:
* INC # B5: 1 # C1: 3,6 => UNS * DIS # B5: 1 # C3: 3,6 => CTR => C3: 9 * INC # B5: 1 + C3: 9 # C1: 3,6 => UNS * DIS # B5: 1 + C3: 9 # C1: 5 => CTR => C1: 3,6 * INC # B5: 1 + C3: 9 + C1: 3,6 # E3: 3,6 => UNS * DIS # B5: 1 + C3: 9 + C1: 3,6 # F3: 3,6 => CTR => F3: 1,2,4,7 * INC # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 # I3: 3,6 => UNS * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 # A8: 3,6 => CTR => A8: 5,8 * INC # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 # E3: 3,6 => UNS * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 # I3: 3,6 => CTR => I3: 4 * DIS # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 # A4: 5,8 => CTR => A4: 2,7 * PRF # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 + A4: 2,7 # A5: 5,8 => SOL * STA # B5: 1 + C3: 9 + C1: 3,6 + F3: 1,2,4,7 + A8: 5,8 + I3: 4 + A4: 2,7 + A5: 5,8 * CNT 12 HDP CHAINS / 13 HYP OPENED