Analysis of xx-ph-00922439-13_03-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76.5..7......9...5..9..857...8.6...4.3.8...........45...6.8...7...2.....1....4 initial

Autosolve

position: 98.76.5..7......9...5..9..857...8.6...4.3.8...........45...6.8...7...2.....1....4 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 F1,H1: 4..:

* PRF # F1: 4 # H3: 1,2 => SOL
* STA # F1: 4 + H3: 1,2
* CNT   1 HDP CHAINS /  13 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

98.76.5..7......9...5..9..857...8.6...4.3.8...........45...6.8...7...2.....1....4 initial
98.76.5..7......9...5..9..857...8.6...4.3.8...........45...6.8...7...2.....1....4 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
B2,B3: 4.. / B2 = 4  =>  0 pairs (_) / B3 = 4  =>  2 pairs (_)
F1,H1: 4.. / F1 = 4  =>  3 pairs (_) / H1 = 4  =>  0 pairs (_)
D5,D6: 6.. / D5 = 6  =>  1 pairs (_) / D6 = 6  =>  0 pairs (_)
I8,G9: 6.. / I8 = 6  =>  0 pairs (_) / G9 = 6  =>  2 pairs (_)
I2,I8: 6.. / I2 = 6  =>  2 pairs (_) / I8 = 6  =>  0 pairs (_)
G3,H3: 7.. / G3 = 7  =>  2 pairs (_) / H3 = 7  =>  1 pairs (_)
D2,E2: 8.. / D2 = 8  =>  0 pairs (_) / E2 = 8  =>  0 pairs (_)
A6,C6: 8.. / A6 = 8  =>  0 pairs (_) / C6 = 8  =>  0 pairs (_)
C6,C9: 8.. / C6 = 8  =>  0 pairs (_) / C9 = 8  =>  0 pairs (_)
D2,D8: 8.. / D2 = 8  =>  0 pairs (_) / D8 = 8  =>  0 pairs (_)
* DURATION: 0:00:06.821057  START: 04:08:06.502440  END: 04:08:13.323497 2020-10-22
* CP COUNT: (10)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F1,H1: 4.. / F1 = 4 ==>  0 pairs (*) / H1 = 4  =>  0 pairs (X)
* DURATION: 0:00:15.169690  START: 04:08:13.324178  END: 04:08:28.493868 2020-10-22
* REASONING F1,H1: 4..
* PRF # F1: 4 # H3: 1,2 => SOL
* STA # F1: 4 + H3: 1,2
* CNT   1 HDP CHAINS /  13 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

922439;13_03;GP;25;11.40;11.40;9.40

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F1,H1: 4..:

* INC # F1: 4 # D2: 2,3 => UNS
* INC # F1: 4 # F2: 2,3 => UNS
* INC # F1: 4 # A3: 2,3 => UNS
* INC # F1: 4 # B3: 2,3 => UNS
* INC # F1: 4 # H3: 2,3 => UNS
* INC # F1: 4 # D7: 2,3 => UNS
* INC # F1: 4 # D7: 9 => UNS
* INC # F1: 4 # E2: 1,2 => UNS
* INC # F1: 4 # F2: 1,2 => UNS
* INC # F1: 4 # A3: 1,2 => UNS
* INC # F1: 4 # B3: 1,2 => UNS
* PRF # F1: 4 # H3: 1,2 => SOL
* STA # F1: 4 + H3: 1,2
* CNT  12 HDP CHAINS /  13 HYP OPENED