Analysis of xx-ph-00819428-13_01-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1.....1.2...1.3.4.5...6...7...4.......8..5.1.4.13..9....58......4...1.3.8 initial

Autosolve

position: ........1.....1.2...1.3.4.51..6...7...41......8..5.1.4.13..9.4..58....1.4...1.3.8 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000007

List of important HDP chains detected for C4,G4: 5..:

* PRF # G4: 5 # B5: 2,9 => SOL
* STA # G4: 5 + B5: 2,9
* 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

........1.....1.2...1.3.4.5...6...7...4.......8..5.1.4.13..9....58......4...1.3.8 initial
........1.....1.2...1.3.4.51..6...7...41......8..5.1.4.13..9.4..58....1.4...1.3.8 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H1,I2: 3.. / H1 = 3  =>  1 pairs (_) / I2 = 3  =>  1 pairs (_)
D8,F8: 3.. / D8 = 3  =>  0 pairs (_) / F8 = 3  =>  2 pairs (_)
D6,D8: 3.. / D6 = 3  =>  2 pairs (_) / D8 = 3  =>  0 pairs (_)
B1,B2: 4.. / B1 = 4  =>  0 pairs (_) / B2 = 4  =>  0 pairs (_)
E4,F4: 4.. / E4 = 4  =>  2 pairs (_) / F4 = 4  =>  0 pairs (_)
C4,A5: 5.. / C4 = 5  =>  0 pairs (_) / A5 = 5  =>  2 pairs (_)
G7,H9: 5.. / G7 = 5  =>  1 pairs (_) / H9 = 5  =>  1 pairs (_)
C4,G4: 5.. / C4 = 5  =>  0 pairs (_) / G4 = 5  =>  2 pairs (_)
D7,G7: 5.. / D7 = 5  =>  1 pairs (_) / G7 = 5  =>  1 pairs (_)
F1,F9: 5.. / F1 = 5  =>  0 pairs (_) / F9 = 5  =>  2 pairs (_)
H5,H9: 5.. / H5 = 5  =>  1 pairs (_) / H9 = 5  =>  1 pairs (_)
D7,E7: 8.. / D7 = 8  =>  1 pairs (_) / E7 = 8  =>  0 pairs (_)
* DURATION: 0:00:08.740876  START: 02:15:09.934139  END: 02:15:18.675015 2021-01-01
* CP COUNT: (12)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F1,F9: 5.. / F1 = 5 ==>  0 pairs (_) / F9 = 5 ==>  2 pairs (_)
C4,G4: 5.. / C4 = 5  =>  0 pairs (X) / G4 = 5 ==>  0 pairs (*)
* DURATION: 0:00:20.933818  START: 02:15:18.675773  END: 02:15:39.609591 2021-01-01
* REASONING C4,G4: 5..
* PRF # G4: 5 # B5: 2,9 => SOL
* STA # G4: 5 + B5: 2,9
* CNT   1 HDP CHAINS /   3 HYP OPENED
* DCP COUNT: (2)
* SOLUTION FOUND

Header Info

819428;13_01;DOB;23;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F1,F9: 5..:

* INC # F9: 5 # D7: 2,7 => UNS
* INC # F9: 5 # E7: 2,7 => UNS
* INC # F9: 5 # D8: 2,7 => UNS
* INC # F9: 5 # E8: 2,7 => UNS
* INC # F9: 5 # F8: 2,7 => UNS
* INC # F9: 5 # B9: 2,7 => UNS
* INC # F9: 5 # C9: 2,7 => UNS
* INC # F9: 5 # D1: 2,7 => UNS
* INC # F9: 5 # D3: 2,7 => UNS
* INC # F9: 5 # D6: 2,7 => UNS
* INC # F9: 5 # G8: 6,9 => UNS
* INC # F9: 5 # I8: 6,9 => UNS
* INC # F9: 5 # B9: 6,9 => UNS
* INC # F9: 5 # C9: 6,9 => UNS
* INC # F9: 5 # H1: 6,9 => UNS
* INC # F9: 5 # H3: 6,9 => UNS
* INC # F9: 5 # H6: 6,9 => UNS
* INC # F9: 5 => UNS
* INC # F1: 5 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for C4,G4: 5..:

* INC # G4: 5 # B4: 2,9 => UNS
* PRF # G4: 5 # B5: 2,9 => SOL
* STA # G4: 5 + B5: 2,9
* CNT   2 HDP CHAINS /   3 HYP OPENED