Analysis of xx-ph-00000713-L45-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ..3.5.7.....1....6.9...7....39...5...7..34...8......2..4..7.9.......8.1....6....2 initial

Autosolve

position: ..3.5.7.....1....6.9...7....39...5...7..34...8......2..4..7.9.......8.1....6....2 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000012

List of important HDP chains detected for A2,C2: 7..:

* PRF # C2: 7 # F7: 2,5 => SOL
* STA # C2: 7 + F7: 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

..3.5.7.....1....6.9...7....39...5...7..34...8......2..4..7.9.......8.1....6....2 initial
..3.5.7.....1....6.9...7....39...5...7..34...8......2..4..7.9.......8.1....6....2 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
G2,G3: 2.. / G2 = 2  =>  2 pairs (_) / G3 = 2  =>  1 pairs (_)
F2,D3: 3.. / F2 = 3  =>  0 pairs (_) / D3 = 3  =>  2 pairs (_)
G6,I6: 3.. / G6 = 3  =>  2 pairs (_) / I6 = 3  =>  2 pairs (_)
A4,C6: 4.. / A4 = 4  =>  4 pairs (_) / C6 = 4  =>  0 pairs (_)
F1,E3: 6.. / F1 = 6  =>  1 pairs (_) / E3 = 6  =>  2 pairs (_)
H7,G8: 6.. / H7 = 6  =>  2 pairs (_) / G8 = 6  =>  2 pairs (_)
A2,C2: 7.. / A2 = 7  =>  0 pairs (_) / C2 = 7  =>  4 pairs (_)
D4,D6: 7.. / D4 = 7  =>  3 pairs (_) / D6 = 7  =>  1 pairs (_)
I8,H9: 7.. / I8 = 7  =>  1 pairs (_) / H9 = 7  =>  0 pairs (_)
D6,I6: 7.. / D6 = 7  =>  1 pairs (_) / I6 = 7  =>  3 pairs (_)
H4,H9: 7.. / H4 = 7  =>  1 pairs (_) / H9 = 7  =>  0 pairs (_)
A8,A9: 9.. / A8 = 9  =>  1 pairs (_) / A9 = 9  =>  1 pairs (_)
* DURATION: 0:00:10.140114  START: 13:12:18.982098  END: 13:12:29.122212 2020-11-21
* CP COUNT: (12)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A2,C2: 7.. / A2 = 7  =>  0 pairs (X) / C2 = 7 ==>  0 pairs (*)
* DURATION: 0:00:13.442931  START: 13:12:29.123311  END: 13:12:42.566242 2020-11-21
* REASONING A2,C2: 7..
* PRF # C2: 7 # F7: 2,5 => SOL
* STA # C2: 7 + F7: 2,5
* CNT   1 HDP CHAINS /   2 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

713;L45;elev;22;11.30;11.30;10.40

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A2,C2: 7..:

* PRF # C2: 7 # F7: 2,5 => SOL
* STA # C2: 7 + F7: 2,5
* CNT   1 HDP CHAINS /   2 HYP OPENED