Analysis of xx-ph-00064546-12_11-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..7...6..9...6.....5.7.4......3...7.....9.5.7....85..9.2...2.1..7....8.5.. initial

Autosolve

position: 98.7..6..7...6..9...6....75.7.4......3...7.....9.5.7....857.9.2...2.1..7..7.8.5.. autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000008

List of important HDP chains detected for C1,F1: 5..:

* DIS # C1: 5 # E1: 2,3 => CTR => E1: 1,4
* DIS # C1: 5 + E1: 1,4 # E3: 2,3 => CTR => E3: 1,4
* PRF # C1: 5 + E1: 1,4 + E3: 1,4 # F3: 2,3 => SOL
* STA # C1: 5 + E1: 1,4 + E3: 1,4 + F3: 2,3
* CNT   3 HDP CHAINS /   4 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..7...6..9...6.....5.7.4......3...7.....9.5.7....85..9.2...2.1..7....8.5.. initial
98.7..6..7...6..9...6....75.7.4......3...7.....9.5.7....857.9.2...2.1..7..7.8.5.. autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
A9,B9: 2.. / A9 = 2  =>  0 pairs (_) / B9 = 2  =>  2 pairs (_)
F1,F2: 5.. / F1 = 5  =>  0 pairs (_) / F2 = 5  =>  5 pairs (_)
H4,H5: 5.. / H4 = 5  =>  1 pairs (_) / H5 = 5  =>  0 pairs (_)
C1,F1: 5.. / C1 = 5  =>  5 pairs (_) / F1 = 5  =>  0 pairs (_)
B2,B8: 5.. / B2 = 5  =>  0 pairs (_) / B8 = 5  =>  4 pairs (_)
G8,H8: 8.. / G8 = 8  =>  1 pairs (_) / H8 = 8  =>  2 pairs (_)
I4,I5: 9.. / I4 = 9  =>  0 pairs (_) / I5 = 9  =>  1 pairs (_)
B8,B9: 9.. / B8 = 9  =>  1 pairs (_) / B9 = 9  =>  2 pairs (_)
B8,E8: 9.. / B8 = 9  =>  1 pairs (_) / E8 = 9  =>  2 pairs (_)
* DURATION: 0:00:06.187411  START: 18:35:41.705024  END: 18:35:47.892435 2020-10-27
* CP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
C1,F1: 5.. / C1 = 5 ==>  0 pairs (*) / F1 = 5  =>  0 pairs (X)
* DURATION: 0:00:10.045469  START: 18:35:47.893377  END: 18:35:57.938846 2020-10-27
* REASONING C1,F1: 5..
* DIS # C1: 5 # E1: 2,3 => CTR => E1: 1,4
* DIS # C1: 5 + E1: 1,4 # E3: 2,3 => CTR => E3: 1,4
* PRF # C1: 5 + E1: 1,4 + E3: 1,4 # F3: 2,3 => SOL
* STA # C1: 5 + E1: 1,4 + E3: 1,4 + F3: 2,3
* CNT   3 HDP CHAINS /   4 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

64546;12_11;GP;25;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for C1,F1: 5..:

* DIS # C1: 5 # E1: 2,3 => CTR => E1: 1,4
* DIS # C1: 5 + E1: 1,4 # E3: 2,3 => CTR => E3: 1,4
* PRF # C1: 5 + E1: 1,4 + E3: 1,4 # F3: 2,3 => SOL
* STA # C1: 5 + E1: 1,4 + E3: 1,4 + F3: 2,3
* CNT   3 HDP CHAINS /   4 HYP OPENED