Analysis of xx-ph-00000011-H1-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6...5......4..93..5......6..7..8......9..24....1.....4....9.1.......1.32 initial

Autosolve

position: 98.7.....6...5......4..93..5......6..7..8......9..24....1.....4....9.1.......1.32 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000005

List of important HDP chains detected for C1,B3: 5..:

* PRF # C1: 5 # A3: 1,2 => SOL
* STA # C1: 5 + A3: 1,2
* CNT   1 HDP CHAINS /   3 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......4..93..5......6..7..8......9..24....1.....4....9.1.......1.32 initial
98.7.....6...5......4..93..5......6..7..8......9..24....1.....4....9.1.......1.32 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
H1,H2: 4.. / H1 = 4  =>  1 pairs (_) / H2 = 4  =>  1 pairs (_)
B4,A5: 4.. / B4 = 4  =>  1 pairs (_) / A5 = 4  =>  1 pairs (_)
C1,B3: 5.. / C1 = 5  =>  4 pairs (_) / B3 = 5  =>  1 pairs (_)
C5,B6: 6.. / C5 = 6  =>  1 pairs (_) / B6 = 6  =>  1 pairs (_)
C2,A3: 7.. / C2 = 7  =>  1 pairs (_) / A3 = 7  =>  3 pairs (_)
C4,A6: 8.. / C4 = 8  =>  1 pairs (_) / A6 = 8  =>  2 pairs (_)
D4,D5: 9.. / D4 = 9  =>  0 pairs (_) / D5 = 9  =>  1 pairs (_)
B7,B9: 9.. / B7 = 9  =>  1 pairs (_) / B9 = 9  =>  0 pairs (_)
B9,G9: 9.. / B9 = 9  =>  0 pairs (_) / G9 = 9  =>  1 pairs (_)
* DURATION: 0:00:07.426260  START: 19:15:04.699509  END: 19:15:12.125769 2017-04-29
* CP COUNT: (9)

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
C1,B3: 5.. / C1 = 5 ==>  0 pairs (*) / B3 = 5  =>  0 pairs (X)
* DURATION: 0:00:11.254679  START: 19:15:12.126278  END: 19:15:23.380957 2017-04-29
* REASONING C1,B3: 5..
* PRF # C1: 5 # A3: 1,2 => SOL
* STA # C1: 5 + A3: 1,2
* CNT   1 HDP CHAINS /   3 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

11;H1;GP;22;11.80;11.80;11.40

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for C1,B3: 5..:

* INC # C1: 5 # B2: 1,2 => UNS
* PRF # C1: 5 # A3: 1,2 => SOL
* STA # C1: 5 + A3: 1,2
* CNT   2 HDP CHAINS /   3 HYP OPENED