Analysis of xx-ph-00265866-12_12_03-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: .......12.....3..4..4.1.5....5.2...6.3.7.....8....9.....6.5..4..7....6..9..8.6... initial

Autosolve

position: .......12.....3..4..4.1.5....5.2...6.3.7.....8....9.....6.5..4..7....6..9..8.6... autosolve
Autosolve

Pair Reduction Variants

Deep Pair Reduction

Deep Pair Reduction

Time used: 0:00:00.162163

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000028

List of important HDP chains detected for A8,B9: 5..:

* PRF # B9: 5 # G4: 1,7 => SOL
* STA # B9: 5 + G4: 1,7
* CNT   1 HDP CHAINS /   6 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

.......12.....3..4..4.1.5....5.2...6.3.7.....8....9.....6.5..4..7....6..9..8.6... initial
.......12.....3..4..4.1.5....5.2...6.3.7.....8....9.....6.5..4..7....6..9..8.6... autosolve

Classification

level: deep

Pairing Analysis

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* PAIRS (2)
A8: 4,5
B9: 4,5

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* CONSTRAINT PAIRS (AUTO SOLVE)
A8,B9: 4.. / A8 = 4  =>  6 pairs (_) / B9 = 4  =>  2 pairs (_)
B9,E9: 4.. / B9 = 4  =>  2 pairs (_) / E9 = 4  =>  6 pairs (_)
F5,D6: 5.. / F5 = 5  =>  2 pairs (_) / D6 = 5  =>  2 pairs (_)
A8,B9: 5.. / A8 = 5  =>  2 pairs (_) / B9 = 5  =>  6 pairs (_)
F1,F5: 5.. / F1 = 5  =>  2 pairs (_) / F5 = 5  =>  2 pairs (_)
H2,H3: 6.. / H2 = 6  =>  2 pairs (_) / H3 = 6  =>  3 pairs (_)
A5,B6: 6.. / A5 = 6  =>  3 pairs (_) / B6 = 6  =>  4 pairs (_)
A5,E5: 6.. / A5 = 6  =>  3 pairs (_) / E5 = 6  =>  4 pairs (_)
A4,C6: 7.. / A4 = 7  =>  3 pairs (_) / C6 = 7  =>  3 pairs (_)
F7,E9: 7.. / F7 = 7  =>  4 pairs (_) / E9 = 7  =>  2 pairs (_)
B7,C8: 8.. / B7 = 8  =>  2 pairs (_) / C8 = 8  =>  3 pairs (_)
B4,C5: 9.. / B4 = 9  =>  3 pairs (_) / C5 = 9  =>  3 pairs (_)
* DURATION: 0:00:08.353426  START: 08:06:19.590145  END: 08:06:27.943571 2020-12-24
* CP COUNT: (12)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A8,B9: 5.. / A8 = 5  =>  0 pairs (X) / B9 = 5 ==>  0 pairs (*)
* DURATION: 0:00:12.430937  START: 08:06:28.688514  END: 08:06:41.119451 2020-12-24
* REASONING A8,B9: 5..
* PRF # B9: 5 # G4: 1,7 => SOL
* STA # B9: 5 + G4: 1,7
* CNT   1 HDP CHAINS /   6 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

265866;12_12_03;dob;22;11.30;11.30;3.40

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A8,B9: 5..:

* INC # B9: 5 # B3: 2,8 => UNS
* INC # B9: 5 # B3: 6,9 => UNS
* INC # B9: 5 # C6: 1,7 => UNS
* INC # B9: 5 # C6: 2 => UNS
* PRF # B9: 5 # G4: 1,7 => SOL
* STA # B9: 5 + G4: 1,7
* CNT   5 HDP CHAINS /   6 HYP OPENED