Analysis of xx-ph-00055878-12_10-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..5..6.........9..847..9..5...53.....9.......2.1...67.9..951...........1.. initial

Autosolve

position: 98.7..6..5..6..9......9..847..9..5...53.....9..9....2.1...67.9..951..........91.. autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000011

List of important HDP chains detected for H1,H9: 5..:

* DIS # H9: 5 # B2: 2,4 => CTR => B2: 3,7
* PRF # H9: 5 + B2: 3,7 # C2: 7 => SOL
* STA # H9: 5 + B2: 3,7 + C2: 7
* CNT   2 HDP CHAINS /   5 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..5..6.........9..847..9..5...53.....9.......2.1...67.9..951...........1.. initial
98.7..6..5..6..9......9..847..9..5...53.....9..9....2.1...67.9..951..........91.. autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
D3,F3: 5.. / D3 = 5  =>  0 pairs (_) / F3 = 5  =>  2 pairs (_)
H1,I1: 5.. / H1 = 5  =>  0 pairs (_) / I1 = 5  =>  4 pairs (_)
D7,I7: 5.. / D7 = 5  =>  3 pairs (_) / I7 = 5  =>  0 pairs (_)
E6,E9: 5.. / E6 = 5  =>  3 pairs (_) / E9 = 5  =>  0 pairs (_)
F3,F6: 5.. / F3 = 5  =>  2 pairs (_) / F6 = 5  =>  0 pairs (_)
H1,H9: 5.. / H1 = 5  =>  0 pairs (_) / H9 = 5  =>  4 pairs (_)
E5,E6: 7.. / E5 = 7  =>  1 pairs (_) / E6 = 7  =>  0 pairs (_)
B9,C9: 7.. / B9 = 7  =>  0 pairs (_) / C9 = 7  =>  0 pairs (_)
E2,F2: 8.. / E2 = 8  =>  0 pairs (_) / F2 = 8  =>  0 pairs (_)
* DURATION: 0:00:06.690105  START: 23:49:16.477553  END: 23:49:23.167658 2020-09-30
* CP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H1,H9: 5.. / H1 = 5  =>  0 pairs (X) / H9 = 5 ==>  0 pairs (*)
* DURATION: 0:00:10.740274  START: 23:49:23.168269  END: 23:49:33.908543 2020-09-30
* REASONING H1,H9: 5..
* DIS # H9: 5 # B2: 2,4 => CTR => B2: 3,7
* PRF # H9: 5 + B2: 3,7 # C2: 7 => SOL
* STA # H9: 5 + B2: 3,7 + C2: 7
* CNT   2 HDP CHAINS /   5 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

55878;12_10;GP;24;11.50;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H1,H9: 5..:

* DIS # H9: 5 # B2: 2,4 => CTR => B2: 3,7
* INC # H9: 5 + B2: 3,7 # C2: 2,4 => UNS
* INC # H9: 5 + B2: 3,7 # C2: 2,4 => UNS
* PRF # H9: 5 + B2: 3,7 # C2: 7 => SOL
* STA # H9: 5 + B2: 3,7 + C2: 7
* CNT   4 HDP CHAINS /   5 HYP OPENED