Analysis of xx-ph-00057894-12_10-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..7..6..5....4.8....5..9..7...97....3......2...1....6.7....1...56....9.1.. initial

Autosolve

position: 98.7..6..7..6..5....4.8...75..9..7...97....3.....72...1....6.7....1...56....9.1.. 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 A5,E5: 6..:

* DIS # A5: 6 # I2: 2,3 => CTR => I2: 4,8
* PRF # A5: 6 + I2: 4,8 # F5: 4,8 => SOL
* STA # A5: 6 + I2: 4,8 + F5: 4,8
* CNT   2 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

98.7..6..7..6..5....4.8....5..9..7...97....3......2...1....6.7....1...56....9.1.. initial
98.7..6..7..6..5....4.8...75..9..7...97....3.....72...1....6.7....1...56....9.1.. autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
C1,B3: 5.. / C1 = 5  =>  0 pairs (_) / B3 = 5  =>  1 pairs (_)
I5,I6: 5.. / I5 = 5  =>  2 pairs (_) / I6 = 5  =>  0 pairs (_)
D6,I6: 5.. / D6 = 5  =>  2 pairs (_) / I6 = 5  =>  0 pairs (_)
A3,B3: 6.. / A3 = 6  =>  0 pairs (_) / B3 = 6  =>  1 pairs (_)
E4,E5: 6.. / E4 = 6  =>  8 pairs (_) / E5 = 6  =>  0 pairs (_)
H4,H6: 6.. / H4 = 6  =>  0 pairs (_) / H6 = 6  =>  1 pairs (_)
A5,E5: 6.. / A5 = 6  =>  8 pairs (_) / E5 = 6  =>  0 pairs (_)
B8,B9: 7.. / B8 = 7  =>  0 pairs (_) / B9 = 7  =>  0 pairs (_)
F8,F9: 7.. / F8 = 7  =>  0 pairs (_) / F9 = 7  =>  0 pairs (_)
B8,F8: 7.. / B8 = 7  =>  0 pairs (_) / F8 = 7  =>  0 pairs (_)
B9,F9: 7.. / B9 = 7  =>  0 pairs (_) / F9 = 7  =>  0 pairs (_)
H2,I2: 8.. / H2 = 8  =>  1 pairs (_) / I2 = 8  =>  0 pairs (_)
F2,F3: 9.. / F2 = 9  =>  0 pairs (_) / F3 = 9  =>  4 pairs (_)
C7,C8: 9.. / C7 = 9  =>  2 pairs (_) / C8 = 9  =>  0 pairs (_)
C8,G8: 9.. / C8 = 9  =>  0 pairs (_) / G8 = 9  =>  2 pairs (_)
* DURATION: 0:00:09.869147  START: 10:59:28.799604  END: 10:59:38.668751 2020-10-27
* CP COUNT: (15)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A5,E5: 6.. / A5 = 6 ==>  0 pairs (*) / E5 = 6  =>  0 pairs (X)
* DURATION: 0:00:19.604380  START: 10:59:38.669399  END: 10:59:58.273779 2020-10-27
* REASONING A5,E5: 6..
* DIS # A5: 6 # I2: 2,3 => CTR => I2: 4,8
* PRF # A5: 6 + I2: 4,8 # F5: 4,8 => SOL
* STA # A5: 6 + I2: 4,8 + F5: 4,8
* CNT   2 HDP CHAINS /  13 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

57894;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 A5,E5: 6..:

* INC # A5: 6 # B2: 2,3 => UNS
* INC # A5: 6 # C2: 2,3 => UNS
* INC # A5: 6 # A8: 2,3 => UNS
* INC # A5: 6 # A9: 2,3 => UNS
* INC # A5: 6 # I1: 2,3 => UNS
* DIS # A5: 6 # I2: 2,3 => CTR => I2: 4,8
* INC # A5: 6 + I2: 4,8 # I1: 2,3 => UNS
* INC # A5: 6 + I2: 4,8 # I1: 1,4 => UNS
* INC # A5: 6 + I2: 4,8 # G7: 2,3 => UNS
* INC # A5: 6 + I2: 4,8 # G8: 2,3 => UNS
* INC # A5: 6 + I2: 4,8 # F4: 4,8 => UNS
* PRF # A5: 6 + I2: 4,8 # F5: 4,8 => SOL
* STA # A5: 6 + I2: 4,8 + F5: 4,8
* CNT  12 HDP CHAINS /  13 HYP OPENED