Analysis of xx-ph-01054683-13_07-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..7..5...8.....4...38..9...2..1.........7..6...5.....2...792....5..8..5.7. initial

Autosolve

position: 98.7..6..7..5...8.....4.7.38..9...2..1........97..6...5.....2...792....5..8..5.7. 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 C1,H1: 5..:

* PRF # C1: 5 # G9: 1,9 => SOL
* STA # C1: 5 + G9: 1,9
* CNT   1 HDP CHAINS /  22 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..5...8.....4...38..9...2..1.........7..6...5.....2...792....5..8..5.7. initial
98.7..6..7..5...8.....4.7.38..9...2..1........97..6...5.....2...792....5..8..5.7. autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
I1,I2: 2.. / I1 = 2  =>  6 pairs (_) / I2 = 2  =>  1 pairs (_)
A9,B9: 2.. / A9 = 2  =>  3 pairs (_) / B9 = 2  =>  1 pairs (_)
A6,E6: 2.. / A6 = 2  =>  2 pairs (_) / E6 = 2  =>  2 pairs (_)
H1,H3: 5.. / H1 = 5  =>  1 pairs (_) / H3 = 5  =>  8 pairs (_)
C1,H1: 5.. / C1 = 5  =>  8 pairs (_) / H1 = 5  =>  1 pairs (_)
E6,G6: 5.. / E6 = 5  =>  2 pairs (_) / G6 = 5  =>  0 pairs (_)
B3,B4: 5.. / B3 = 5  =>  1 pairs (_) / B4 = 5  =>  1 pairs (_)
E2,D3: 6.. / E2 = 6  =>  1 pairs (_) / D3 = 6  =>  4 pairs (_)
I4,I5: 7.. / I4 = 7  =>  0 pairs (_) / I5 = 7  =>  0 pairs (_)
E7,F7: 7.. / E7 = 7  =>  0 pairs (_) / F7 = 7  =>  0 pairs (_)
D3,F3: 8.. / D3 = 8  =>  1 pairs (_) / F3 = 8  =>  2 pairs (_)
I7,G8: 8.. / I7 = 8  =>  1 pairs (_) / G8 = 8  =>  0 pairs (_)
F3,H3: 9.. / F3 = 9  =>  3 pairs (_) / H3 = 9  =>  1 pairs (_)
* DURATION: 0:00:09.347344  START: 09:37:22.695385  END: 09:37:32.042729 2021-01-11
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
C1,H1: 5.. / C1 = 5 ==>  0 pairs (*) / H1 = 5  =>  0 pairs (X)
* DURATION: 0:00:24.633075  START: 09:37:32.043386  END: 09:37:56.676461 2021-01-11
* REASONING C1,H1: 5..
* PRF # C1: 5 # G9: 1,9 => SOL
* STA # C1: 5 + G9: 1,9
* CNT   1 HDP CHAINS /  22 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

1054683;13_07;GP;24;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for C1,H1: 5..:

* INC # C1: 5 # B7: 3,4 => UNS
* INC # C1: 5 # B9: 3,4 => UNS
* INC # C1: 5 # C4: 3,4 => UNS
* INC # C1: 5 # C5: 3,4 => UNS
* INC # C1: 5 # C7: 3,4 => UNS
* INC # C1: 5 # A3: 2,6 => UNS
* INC # C1: 5 # C3: 2,6 => UNS
* INC # C1: 5 # B9: 2,6 => UNS
* INC # C1: 5 # B9: 3,4 => UNS
* INC # C1: 5 # E1: 1,2 => UNS
* INC # C1: 5 # F1: 1,2 => UNS
* INC # C1: 5 # I2: 1,2 => UNS
* INC # C1: 5 # I2: 9 => UNS
* INC # C1: 5 # I1: 1,4 => UNS
* INC # C1: 5 # I1: 2 => UNS
* INC # C1: 5 # H6: 1,4 => UNS
* INC # C1: 5 # H7: 1,4 => UNS
* INC # C1: 5 # H8: 1,4 => UNS
* INC # C1: 5 # I2: 1,9 => UNS
* INC # C1: 5 # I2: 2 => UNS
* PRF # C1: 5 # G9: 1,9 => SOL
* STA # C1: 5 + G9: 1,9
* CNT  21 HDP CHAINS /  22 HYP OPENED