Analysis of xx-ph-00034065-2012_04-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..75..6..9...6......43.5.......5.7.8.......2.3...7.5.9.....1....2.....4.1. initial

Autosolve

position: 98.7..6..75..6..9...6......43.5.......5.7.8...7...2.3...7.5.9.....1.7..2.....4.1. autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000008

List of important HDP chains detected for G6,I6: 5..:

* PRF # G6: 5 # I9: 3,7 => SOL
* STA # G6: 5 + I9: 3,7
* CNT   1 HDP CHAINS /   8 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..75..6..9...6......43.5.......5.7.8.......2.3...7.5.9.....1....2.....4.1. initial
98.7..6..75..6..9...6......43.5.......5.7.8...7...2.3...7.5.9.....1.7..2.....4.1. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
A7,B7: 1.. / A7 = 1  =>  3 pairs (_) / B7 = 1  =>  2 pairs (_)
D5,F5: 3.. / D5 = 3  =>  1 pairs (_) / F5 = 3  =>  3 pairs (_)
F1,F3: 5.. / F1 = 5  =>  1 pairs (_) / F3 = 5  =>  2 pairs (_)
G6,I6: 5.. / G6 = 5  =>  2 pairs (_) / I6 = 5  =>  1 pairs (_)
A8,A9: 5.. / A8 = 5  =>  3 pairs (_) / A9 = 5  =>  1 pairs (_)
G9,I9: 7.. / G9 = 7  =>  1 pairs (_) / I9 = 7  =>  1 pairs (_)
H3,H4: 7.. / H3 = 7  =>  1 pairs (_) / H4 = 7  =>  1 pairs (_)
* DURATION: 0:00:04.346748  START: 18:12:05.899968  END: 18:12:10.246716 2020-10-26
* CP COUNT: (7)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A7,B7: 1.. / A7 = 1 ==>  3 pairs (_) / B7 = 1 ==>  2 pairs (_)
A8,A9: 5.. / A8 = 5 ==>  3 pairs (_) / A9 = 5 ==>  1 pairs (_)
D5,F5: 3.. / D5 = 3 ==>  1 pairs (_) / F5 = 3 ==>  3 pairs (_)
G6,I6: 5.. / G6 = 5 ==>  0 pairs (*) / I6 = 5  =>  0 pairs (X)
* DURATION: 0:00:34.858848  START: 18:12:10.247508  END: 18:12:45.106356 2020-10-26
* REASONING G6,I6: 5..
* PRF # G6: 5 # I9: 3,7 => SOL
* STA # G6: 5 + I9: 3,7
* CNT   1 HDP CHAINS /   8 HYP OPENED
* DCP COUNT: (4)
* SOLUTION FOUND

Header Info

34065;2012_04;GP;24;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A7,B7: 1..:

* INC # A7: 1 # C1: 2,3 => UNS
* INC # A7: 1 # C2: 2,3 => UNS
* INC # A7: 1 # D3: 2,3 => UNS
* INC # A7: 1 # E3: 2,3 => UNS
* INC # A7: 1 # G3: 2,3 => UNS
* INC # A7: 1 # A9: 2,3 => UNS
* INC # A7: 1 # A9: 5,6,8 => UNS
* INC # A7: 1 # B5: 2,6 => UNS
* INC # A7: 1 # B5: 1,9 => UNS
* INC # A7: 1 # H5: 2,6 => UNS
* INC # A7: 1 # H5: 4 => UNS
* INC # A7: 1 # A9: 2,6 => UNS
* INC # A7: 1 # A9: 3,5,8 => UNS
* INC # A7: 1 # D6: 6,8 => UNS
* INC # A7: 1 # D6: 4,9 => UNS
* INC # A7: 1 # A8: 6,8 => UNS
* INC # A7: 1 # A9: 6,8 => UNS
* INC # A7: 1 => UNS
* INC # B7: 1 # C1: 2,4 => UNS
* INC # B7: 1 # C2: 2,4 => UNS
* INC # B7: 1 # D3: 2,4 => UNS
* INC # B7: 1 # E3: 2,4 => UNS
* INC # B7: 1 # G3: 2,4 => UNS
* INC # B7: 1 # H3: 2,4 => UNS
* INC # B7: 1 # G9: 3,5 => UNS
* INC # B7: 1 # I9: 3,5 => UNS
* INC # B7: 1 # A8: 3,5 => UNS
* INC # B7: 1 # A8: 6,8 => UNS
* INC # B7: 1 # G3: 3,5 => UNS
* INC # B7: 1 # G3: 1,2,4,7 => UNS
* INC # B7: 1 => UNS
* CNT  31 HDP CHAINS /  31 HYP OPENED

Full list of HDP chains traversed for A8,A9: 5..:

* INC # A8: 5 # I7: 3,4 => UNS
* INC # A8: 5 # I7: 6,8 => UNS
* INC # A8: 5 # C8: 3,4 => UNS
* INC # A8: 5 # C8: 8,9 => UNS
* INC # A8: 5 # G2: 3,4 => UNS
* INC # A8: 5 # G3: 3,4 => UNS
* INC # A8: 5 => UNS
* INC # A9: 5 # I9: 3,7 => UNS
* INC # A9: 5 # I9: 6,8 => UNS
* INC # A9: 5 # G3: 3,7 => UNS
* INC # A9: 5 # G3: 1,2,4,5 => UNS
* INC # A9: 5 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

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

* INC # F5: 3 # F3: 1,5 => UNS
* INC # F5: 3 # F3: 8,9 => UNS
* INC # F5: 3 # I1: 1,5 => UNS
* INC # F5: 3 # I1: 3,4 => UNS
* INC # F5: 3 # E3: 1,8 => UNS
* INC # F5: 3 # F3: 1,8 => UNS
* INC # F5: 3 # I2: 1,8 => UNS
* INC # F5: 3 # I2: 3,4 => UNS
* INC # F5: 3 # F4: 1,8 => UNS
* INC # F5: 3 # F4: 6,9 => UNS
* INC # F5: 3 # D7: 6,8 => UNS
* INC # F5: 3 # D9: 6,8 => UNS
* INC # F5: 3 # A7: 6,8 => UNS
* INC # F5: 3 # H7: 6,8 => UNS
* INC # F5: 3 # I7: 6,8 => UNS
* INC # F5: 3 # F4: 6,8 => UNS
* INC # F5: 3 # F4: 1,9 => UNS
* INC # F5: 3 => UNS
* INC # D5: 3 # I6: 1,5 => UNS
* INC # D5: 3 # I6: 6,9 => UNS
* INC # D5: 3 # G3: 1,5 => UNS
* INC # D5: 3 # G3: 2,3,4,7 => UNS
* INC # D5: 3 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for G6,I6: 5..:

* INC # G6: 5 # I7: 3,4 => UNS
* INC # G6: 5 # I7: 6,8 => UNS
* INC # G6: 5 # C8: 3,4 => UNS
* INC # G6: 5 # C8: 8,9 => UNS
* INC # G6: 5 # G2: 3,4 => UNS
* INC # G6: 5 # G3: 3,4 => UNS
* PRF # G6: 5 # I9: 3,7 => SOL
* STA # G6: 5 + I9: 3,7
* CNT   7 HDP CHAINS /   8 HYP OPENED