Analysis of xx-ph-00056200-12_10-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..5..9..7......84...6..5..9...53..9.......2....1......76.95...1.....1....9 initial

Autosolve

position: 98.7..6..5..9..7......84.9.6..5..9...53..9.....9.2....1...9..76.95...1.....1....9 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000007

List of important HDP chains detected for E1,E9: 5..:

* DIS # E9: 5 # B2: 2,4 => CTR => B2: 3,6
* PRF # E9: 5 + B2: 3,6 # C2: 6 => SOL
* STA # E9: 5 + B2: 3,6 + C2: 6
* 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..9..7......84...6..5..9...53..9.......2....1......76.95...1.....1....9 initial
98.7..6..5..9..7......84.9.6..5..9...53..9.....9.2....1...9..76.95...1.....1....9 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
E1,F1: 5.. / E1 = 5  =>  0 pairs (_) / F1 = 5  =>  4 pairs (_)
G3,I3: 5.. / G3 = 5  =>  0 pairs (_) / I3 = 5  =>  2 pairs (_)
F7,G7: 5.. / F7 = 5  =>  0 pairs (_) / G7 = 5  =>  3 pairs (_)
E1,E9: 5.. / E1 = 5  =>  0 pairs (_) / E9 = 5  =>  4 pairs (_)
H6,H9: 5.. / H6 = 5  =>  3 pairs (_) / H9 = 5  =>  0 pairs (_)
I3,I6: 5.. / I3 = 5  =>  2 pairs (_) / I6 = 5  =>  0 pairs (_)
H5,H6: 6.. / H5 = 6  =>  1 pairs (_) / H6 = 6  =>  0 pairs (_)
B9,C9: 6.. / B9 = 6  =>  0 pairs (_) / C9 = 6  =>  0 pairs (_)
H2,I2: 8.. / H2 = 8  =>  0 pairs (_) / I2 = 8  =>  0 pairs (_)
* DURATION: 0:00:06.316360  START: 10:18:39.049153  END: 10:18:45.365513 2020-10-27
* CP COUNT: (9)
* INCONCLUSIVE

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* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
E1,E9: 5.. / E1 = 5  =>  0 pairs (X) / E9 = 5 ==>  0 pairs (*)
* DURATION: 0:00:10.146232  START: 10:18:45.366124  END: 10:18:55.512356 2020-10-27
* REASONING E1,E9: 5..
* DIS # E9: 5 # B2: 2,4 => CTR => B2: 3,6
* PRF # E9: 5 + B2: 3,6 # C2: 6 => SOL
* STA # E9: 5 + B2: 3,6 + C2: 6
* CNT   2 HDP CHAINS /   5 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

56200;12_10;GP;24;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for E1,E9: 5..:

* DIS # E9: 5 # B2: 2,4 => CTR => B2: 3,6
* INC # E9: 5 + B2: 3,6 # C2: 2,4 => UNS
* INC # E9: 5 + B2: 3,6 # C2: 2,4 => UNS
* PRF # E9: 5 + B2: 3,6 # C2: 6 => SOL
* STA # E9: 5 + B2: 3,6 + C2: 6
* CNT   4 HDP CHAINS /   5 HYP OPENED