Analysis of xx-ph-00011348-kz0-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.....7....7.5....5....4.3...85..9......2...1.3......4..69..3......13.2. initial

Autosolve

position: 98.7.....6.....7....7.5....5....4.3...85..9......2...1.3......4..69..3......13.2. 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 E8,D9: 4..:

* PRF # D9: 4 # A8: 7,8 => SOL
* STA # D9: 4 + A8: 7,8
* CNT   1 HDP CHAINS /   3 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....7.5....5....4.3...85..9......2...1.3......4..69..3......13.2. initial
98.7.....6.....7....7.5....5....4.3...85..9......2...1.3......4..69..3......13.2. autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
D4,F5: 1.. / D4 = 1  =>  2 pairs (_) / F5 = 1  =>  2 pairs (_)
E5,D6: 3.. / E5 = 3  =>  2 pairs (_) / D6 = 3  =>  3 pairs (_)
A5,E5: 3.. / A5 = 3  =>  3 pairs (_) / E5 = 3  =>  2 pairs (_)
E8,D9: 4.. / E8 = 4  =>  2 pairs (_) / D9 = 4  =>  3 pairs (_)
G6,H6: 5.. / G6 = 5  =>  1 pairs (_) / H6 = 5  =>  0 pairs (_)
F7,F8: 5.. / F7 = 5  =>  0 pairs (_) / F8 = 5  =>  1 pairs (_)
E4,F6: 9.. / E4 = 9  =>  1 pairs (_) / F6 = 9  =>  1 pairs (_)
H7,I9: 9.. / H7 = 9  =>  0 pairs (_) / I9 = 9  =>  3 pairs (_)
C7,H7: 9.. / C7 = 9  =>  3 pairs (_) / H7 = 9  =>  0 pairs (_)
E2,E4: 9.. / E2 = 9  =>  1 pairs (_) / E4 = 9  =>  1 pairs (_)
* DURATION: 0:00:05.647262  START: 16:03:33.115305  END: 16:03:38.762567 2020-12-01
* CP COUNT: (10)
* INCONCLUSIVE

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* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
E8,D9: 4.. / E8 = 4  =>  0 pairs (X) / D9 = 4 ==>  0 pairs (*)
* DURATION: 0:00:08.194923  START: 16:03:38.763123  END: 16:03:46.958046 2020-12-01
* REASONING E8,D9: 4..
* PRF # D9: 4 # A8: 7,8 => SOL
* STA # D9: 4 + A8: 7,8
* CNT   1 HDP CHAINS /   3 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

11348;kz0;GP;23;11.30;11.30;9.50

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for E8,D9: 4..:

* INC # D9: 4 # A7: 7,8 => UNS
* PRF # D9: 4 # A8: 7,8 => SOL
* STA # D9: 4 + A8: 7,8
* CNT   2 HDP CHAINS /   3 HYP OPENED