Analysis of xx-ph-00020964-KZ1C-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..5...8..7...7..6...43.2.......8.6.5..........3..9.7.8.....1....2.....4.1. initial

Autosolve

position: 98.7..6..5...8..7...7..6...43.2.......8.6.5..........3..9.7.8.....1....2.....4.1. autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000005

List of important HDP chains detected for D5,F5: 3..:

* PRF # D5: 3 # B7: 5,6 => SOL
* STA # D5: 3 + B7: 5,6
* CNT   1 HDP CHAINS /  10 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..5...8..7...7..6...43.2.......8.6.5..........3..9.7.8.....1....2.....4.1. initial
98.7..6..5...8..7...7..6...43.2.......8.6.5..........3..9.7.8.....1....2.....4.1. autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
A7,B7: 1.. / A7 = 1  =>  2 pairs (_) / B7 = 1  =>  1 pairs (_)
F7,E9: 2.. / F7 = 2  =>  0 pairs (_) / E9 = 2  =>  3 pairs (_)
D5,F5: 3.. / D5 = 3  =>  2 pairs (_) / F5 = 3  =>  2 pairs (_)
B2,C2: 6.. / B2 = 6  =>  0 pairs (_) / C2 = 6  =>  1 pairs (_)
D7,D9: 6.. / D7 = 6  =>  1 pairs (_) / D9 = 6  =>  2 pairs (_)
H3,I3: 8.. / H3 = 8  =>  1 pairs (_) / I3 = 8  =>  0 pairs (_)
A8,A9: 8.. / A8 = 8  =>  1 pairs (_) / A9 = 8  =>  0 pairs (_)
F8,D9: 8.. / F8 = 8  =>  0 pairs (_) / D9 = 8  =>  1 pairs (_)
A8,F8: 8.. / A8 = 8  =>  1 pairs (_) / F8 = 8  =>  0 pairs (_)
A9,D9: 8.. / A9 = 8  =>  0 pairs (_) / D9 = 8  =>  1 pairs (_)
D6,D9: 8.. / D6 = 8  =>  0 pairs (_) / D9 = 8  =>  1 pairs (_)
I3,I4: 8.. / I3 = 8  =>  0 pairs (_) / I4 = 8  =>  1 pairs (_)
B5,B6: 9.. / B5 = 9  =>  2 pairs (_) / B6 = 9  =>  0 pairs (_)
* DURATION: 0:00:07.487230  START: 09:27:48.922135  END: 09:27:56.409365 2020-12-07
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F7,E9: 2.. / F7 = 2 ==>  0 pairs (_) / E9 = 2 ==>  3 pairs (_)
D5,F5: 3.. / D5 = 3 ==>  0 pairs (*) / F5 = 3  =>  0 pairs (X)
* DURATION: 0:00:19.254749  START: 09:27:56.409916  END: 09:28:15.664665 2020-12-07
* REASONING D5,F5: 3..
* PRF # D5: 3 # B7: 5,6 => SOL
* STA # D5: 3 + B7: 5,6
* CNT   1 HDP CHAINS /  10 HYP OPENED
* DCP COUNT: (2)
* SOLUTION FOUND

Header Info

20964;KZ1C;GP;23;11.30;11.30;10.50

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F7,E9: 2..:

* INC # E9: 2 # A3: 1,2 => UNS
* INC # E9: 2 # A5: 1,2 => UNS
* INC # E9: 2 # A6: 1,2 => UNS
* INC # E9: 2 # B2: 1,2 => UNS
* INC # E9: 2 # B3: 1,2 => UNS
* INC # E9: 2 # B5: 1,2 => UNS
* INC # E9: 2 # B6: 1,2 => UNS
* INC # E9: 2 # D7: 3,5 => UNS
* INC # E9: 2 # E8: 3,5 => UNS
* INC # E9: 2 # F8: 3,5 => UNS
* INC # E9: 2 # D9: 3,5 => UNS
* INC # E9: 2 # H7: 3,5 => UNS
* INC # E9: 2 # H7: 4,6 => UNS
* INC # E9: 2 # F1: 3,5 => UNS
* INC # E9: 2 # F1: 1,2 => UNS
* INC # E9: 2 => UNS
* INC # F7: 2 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for D5,F5: 3..:

* INC # D5: 3 # D3: 4,9 => UNS
* INC # D5: 3 # E3: 4,9 => UNS
* INC # D5: 3 # G2: 4,9 => UNS
* INC # D5: 3 # I2: 4,9 => UNS
* INC # D5: 3 # D6: 4,9 => UNS
* INC # D5: 3 # D6: 5,8 => UNS
* INC # D5: 3 # D9: 5,6 => UNS
* INC # D5: 3 # D9: 8,9 => UNS
* PRF # D5: 3 # B7: 5,6 => SOL
* STA # D5: 3 + B7: 5,6
* CNT   9 HDP CHAINS /  10 HYP OPENED