Analysis of xx-ph-00000459-147-base.sdk
Contents
Original Sudoku
level: deep
position: ...4....9..7.8..6......35..2...1....8......1...16.7.....2.6..9....9..3...9...5..4 initial
Autosolve
position: ...4.6..9..7.8..6......35..2...1....8......1...16.7.....2.6..9....9..3...9...5..4 autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000008
List of important HDP chains detected for E1,D2: 5..:
* DIS # E1: 5 # A2: 1,3 => CTR => A2: 4,5,9 * DIS # E1: 5 + A2: 4,5,9 # F2: 1,2 => CTR => F2: 9 * DIS # E1: 5 + A2: 4,5,9 + F2: 9 # B2: 1,2 => CTR => B2: 3,4,5 * DIS # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 # I2: 1,2 => CTR => I2: 3 * PRF # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # A7: 1,3 => SOL * STA # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 + A7: 1,3 * CNT 5 HDP CHAINS / 28 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
| ...4....9..7.8..6......35..2...1....8......1...16.7.....2.6..9....9..3...9...5..4 | initial |
| ...4.6..9..7.8..6......35..2...1....8......1...16.7.....2.6..9....9..3...9...5..4 | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) H1,I2: 3.. / H1 = 3 => 3 pairs (_) / I2 = 3 => 0 pairs (_) G2,H3: 4.. / G2 = 4 => 0 pairs (_) / H3 = 4 => 1 pairs (_) E1,D2: 5.. / E1 = 5 => 3 pairs (_) / D2 = 5 => 3 pairs (_) I8,G9: 6.. / I8 = 6 => 0 pairs (_) / G9 = 6 => 1 pairs (_) B4,B5: 7.. / B4 = 7 => 0 pairs (_) / B5 = 7 => 0 pairs (_) D4,F4: 8.. / D4 = 8 => 1 pairs (_) / F4 = 8 => 2 pairs (_) F2,E3: 9.. / F2 = 9 => 3 pairs (_) / E3 = 9 => 1 pairs (_) A2,F2: 9.. / A2 = 9 => 1 pairs (_) / F2 = 9 => 3 pairs (_) * DURATION: 0:00:05.130101 START: 20:59:56.094359 END: 21:00:01.224460 2020-10-25 * CP COUNT: (8) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) E1,D2: 5.. / E1 = 5 ==> 0 pairs (*) / D2 = 5 => 0 pairs (X) * DURATION: 0:00:20.160799 START: 21:00:01.225134 END: 21:00:21.385933 2020-10-25 * REASONING E1,D2: 5.. * DIS # E1: 5 # A2: 1,3 => CTR => A2: 4,5,9 * DIS # E1: 5 + A2: 4,5,9 # F2: 1,2 => CTR => F2: 9 * DIS # E1: 5 + A2: 4,5,9 + F2: 9 # B2: 1,2 => CTR => B2: 3,4,5 * DIS # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 # I2: 1,2 => CTR => I2: 3 * PRF # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # A7: 1,3 => SOL * STA # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 + A7: 1,3 * CNT 5 HDP CHAINS / 28 HYP OPENED * DCP COUNT: (1) * SOLUTION FOUND
Header Info
459;147;elev;22;11.40;1.20;1.20
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for E1,D2: 5..:
* INC # E1: 5 # B1: 1,3 => UNS * DIS # E1: 5 # A2: 1,3 => CTR => A2: 4,5,9 * INC # E1: 5 + A2: 4,5,9 # B2: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # A7: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # A9: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # B1: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # B2: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # A7: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # A9: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 # B1: 3,8 => UNS * INC # E1: 5 + A2: 4,5,9 # B1: 1,2 => UNS * INC # E1: 5 + A2: 4,5,9 # H1: 3,8 => UNS * INC # E1: 5 + A2: 4,5,9 # H1: 2,7 => UNS * INC # E1: 5 + A2: 4,5,9 # C9: 3,8 => UNS * INC # E1: 5 + A2: 4,5,9 # C9: 6 => UNS * DIS # E1: 5 + A2: 4,5,9 # F2: 1,2 => CTR => F2: 9 * INC # E1: 5 + A2: 4,5,9 + F2: 9 # D3: 1,2 => UNS * INC # E1: 5 + A2: 4,5,9 + F2: 9 # D3: 1,2 => UNS * INC # E1: 5 + A2: 4,5,9 + F2: 9 # D3: 7 => UNS * DIS # E1: 5 + A2: 4,5,9 + F2: 9 # B2: 1,2 => CTR => B2: 3,4,5 * INC # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 # G2: 1,2 => UNS * DIS # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 # I2: 1,2 => CTR => I2: 3 * INC # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # D3: 1,2 => UNS * INC # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # D3: 7 => UNS * INC # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # B1: 1,3 => UNS * INC # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # B1: 2,8 => UNS * PRF # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 # A7: 1,3 => SOL * STA # E1: 5 + A2: 4,5,9 + F2: 9 + B2: 3,4,5 + I2: 3 + A7: 1,3 * CNT 27 HDP CHAINS / 28 HYP OPENED