Analysis of xx-ph-00041819-12_07-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..75..6......6..8....4...3.2...7...3.....1..9.4..5.8.7.....2...1......4..3 initial

Autosolve

position: 98.7..6..75..6......6..8....4...3.2...7...3.....1..9.4..5.8.7.....2...1......4..3 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000006

List of important HDP chains detected for B9,E9: 7..:

* PRF # E9: 7 # E1: 2,5 => SOL
* STA # E9: 7 + E1: 2,5
* CNT   1 HDP CHAINS /   2 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..75..6......6..8....4...3.2...7...3.....1..9.4..5.8.7.....2...1......4..3 initial
98.7..6..75..6......6..8....4...3.2...7...3.....1..9.4..5.8.7.....2...1......4..3 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
F7,E9: 1.. / F7 = 1  =>  2 pairs (_) / E9 = 1  =>  1 pairs (_)
I7,G9: 2.. / I7 = 2  =>  2 pairs (_) / G9 = 2  =>  1 pairs (_)
D7,E8: 3.. / D7 = 3  =>  1 pairs (_) / E8 = 3  =>  1 pairs (_)
D5,E5: 4.. / D5 = 4  =>  4 pairs (_) / E5 = 4  =>  0 pairs (_)
H7,G8: 4.. / H7 = 4  =>  2 pairs (_) / G8 = 4  =>  1 pairs (_)
A7,H7: 4.. / A7 = 4  =>  1 pairs (_) / H7 = 4  =>  2 pairs (_)
H3,I3: 7.. / H3 = 7  =>  1 pairs (_) / I3 = 7  =>  2 pairs (_)
I4,H6: 7.. / I4 = 7  =>  1 pairs (_) / H6 = 7  =>  2 pairs (_)
B8,B9: 7.. / B8 = 7  =>  4 pairs (_) / B9 = 7  =>  0 pairs (_)
E4,I4: 7.. / E4 = 7  =>  2 pairs (_) / I4 = 7  =>  1 pairs (_)
B9,E9: 7.. / B9 = 7  =>  0 pairs (_) / E9 = 7  =>  4 pairs (_)
F6,F8: 7.. / F6 = 7  =>  2 pairs (_) / F8 = 7  =>  0 pairs (_)
H3,H6: 7.. / H3 = 7  =>  1 pairs (_) / H6 = 7  =>  2 pairs (_)
I3,I4: 7.. / I3 = 7  =>  2 pairs (_) / I4 = 7  =>  1 pairs (_)
D4,D5: 8.. / D4 = 8  =>  2 pairs (_) / D5 = 8  =>  1 pairs (_)
C4,B5: 9.. / C4 = 9  =>  1 pairs (_) / B5 = 9  =>  1 pairs (_)
* DURATION: 0:00:09.892344  START: 04:56:25.994536  END: 04:56:35.886880 2020-12-19
* CP COUNT: (16)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
B9,E9: 7.. / B9 = 7  =>  0 pairs (X) / E9 = 7 ==>  0 pairs (*)
* DURATION: 0:00:12.460261  START: 04:56:35.887407  END: 04:56:48.347668 2020-12-19
* REASONING B9,E9: 7..
* PRF # E9: 7 # E1: 2,5 => SOL
* STA # E9: 7 + E1: 2,5
* CNT   1 HDP CHAINS /   2 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

41819;12_07;GP;24;11.30;11.30;10.70

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for B9,E9: 7..:

* PRF # E9: 7 # E1: 2,5 => SOL
* STA # E9: 7 + E1: 2,5
* CNT   1 HDP CHAINS /   2 HYP OPENED