Analysis of xx-ph-00225628-12_12_03-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1..1.23...45.1..23....2...64..45.6....6..3.7....5.....2.3....48.9.....3.. initial

Autosolve

position: ........1..1.23...45.1..23....2...64..45.6..3.6..3.7....53....2.3....48.9.....3.. 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

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000011

List of important HDP chains detected for G2,G4: 5..:

* PRF # G4: 5 # I2: 8,9 => SOL
* STA # G4: 5 + I2: 8,9
* CNT   1 HDP CHAINS /   7 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..1.23...45.1..23....2...64..45.6....6..3.7....5.....2.3....48.9.....3.. initial
........1..1.23...45.1..23....2...64..45.6..3.6..3.7....53....2.3....48.9.....3.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H5,H6: 2.. / H5 = 2  =>  0 pairs (_) / H6 = 2  =>  2 pairs (_)
F8,F9: 2.. / F8 = 2  =>  1 pairs (_) / F9 = 2  =>  0 pairs (_)
A1,C1: 3.. / A1 = 3  =>  0 pairs (_) / C1 = 3  =>  1 pairs (_)
A4,C4: 3.. / A4 = 3  =>  1 pairs (_) / C4 = 3  =>  0 pairs (_)
A1,A4: 3.. / A1 = 3  =>  0 pairs (_) / A4 = 3  =>  1 pairs (_)
C1,C4: 3.. / C1 = 3  =>  1 pairs (_) / C4 = 3  =>  0 pairs (_)
H1,H2: 4.. / H1 = 4  =>  1 pairs (_) / H2 = 4  =>  1 pairs (_)
D6,F6: 4.. / D6 = 4  =>  3 pairs (_) / F6 = 4  =>  1 pairs (_)
B7,B9: 4.. / B7 = 4  =>  0 pairs (_) / B9 = 4  =>  0 pairs (_)
D2,H2: 4.. / D2 = 4  =>  1 pairs (_) / H2 = 4  =>  1 pairs (_)
E1,F1: 5.. / E1 = 5  =>  2 pairs (_) / F1 = 5  =>  0 pairs (_)
A4,A6: 5.. / A4 = 5  =>  0 pairs (_) / A6 = 5  =>  1 pairs (_)
A4,G4: 5.. / A4 = 5  =>  0 pairs (_) / G4 = 5  =>  1 pairs (_)
G2,G4: 5.. / G2 = 5  =>  0 pairs (_) / G4 = 5  =>  1 pairs (_)
* DURATION: 0:00:10.858163  START: 11:48:07.515392  END: 11:48:18.373555 2020-12-23
* CP COUNT: (14)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
D6,F6: 4.. / D6 = 4 ==>  3 pairs (_) / F6 = 4 ==>  1 pairs (_)
E1,F1: 5.. / E1 = 5 ==>  2 pairs (_) / F1 = 5 ==>  0 pairs (_)
H5,H6: 2.. / H5 = 2 ==>  0 pairs (_) / H6 = 2 ==>  2 pairs (_)
D2,H2: 4.. / D2 = 4 ==>  1 pairs (_) / H2 = 4 ==>  1 pairs (_)
H1,H2: 4.. / H1 = 4 ==>  1 pairs (_) / H2 = 4 ==>  1 pairs (_)
G2,G4: 5.. / G2 = 5  =>  0 pairs (X) / G4 = 5 ==>  0 pairs (*)
* DURATION: 0:00:52.946828  START: 11:48:18.374902  END: 11:49:11.321730 2020-12-23
* REASONING G2,G4: 5..
* PRF # G4: 5 # I2: 8,9 => SOL
* STA # G4: 5 + I2: 8,9
* CNT   1 HDP CHAINS /   7 HYP OPENED
* DCP COUNT: (6)
* SOLUTION FOUND

Header Info

225628;12_12_03;dob;25;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for D6,F6: 4..:

* INC # D6: 4 # E9: 4,5 => UNS
* INC # D6: 4 # E9: 1,6,7,8 => UNS
* INC # D6: 4 # F9: 4,5 => UNS
* INC # D6: 4 # F9: 1,2,7,8 => UNS
* INC # D6: 4 # I2: 7,9 => UNS
* INC # D6: 4 # I3: 7,9 => UNS
* INC # D6: 4 # B1: 7,9 => UNS
* INC # D6: 4 # C1: 7,9 => UNS
* INC # D6: 4 # D1: 7,9 => UNS
* INC # D6: 4 # H7: 7,9 => UNS
* INC # D6: 4 # H7: 1 => UNS
* INC # D6: 4 => UNS
* INC # F6: 4 # E4: 8,9 => UNS
* INC # F6: 4 # F4: 8,9 => UNS
* INC # F6: 4 # E5: 8,9 => UNS
* INC # F6: 4 # C6: 8,9 => UNS
* INC # F6: 4 # I6: 8,9 => UNS
* INC # F6: 4 # D1: 8,9 => UNS
* INC # F6: 4 # D2: 8,9 => UNS
* INC # F6: 4 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for E1,F1: 5..:

* INC # E1: 5 => UNS
* INC # F1: 5 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for H5,H6: 2..:

* INC # H6: 2 # B4: 8,9 => UNS
* INC # H6: 2 # C4: 8,9 => UNS
* INC # H6: 2 # B5: 8,9 => UNS
* INC # H6: 2 # D6: 8,9 => UNS
* INC # H6: 2 # F6: 8,9 => UNS
* INC # H6: 2 # I6: 8,9 => UNS
* INC # H6: 2 # C1: 8,9 => UNS
* INC # H6: 2 # C3: 8,9 => UNS
* INC # H6: 2 # G4: 1,9 => UNS
* INC # H6: 2 # G5: 1,9 => UNS
* INC # H6: 2 # B5: 1,9 => UNS
* INC # H6: 2 # E5: 1,9 => UNS
* INC # H6: 2 # H7: 1,9 => UNS
* INC # H6: 2 # H7: 7 => UNS
* INC # H6: 2 => UNS
* INC # H5: 2 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for D2,H2: 4..:

* INC # D2: 4 # E4: 8,9 => UNS
* INC # D2: 4 # F4: 8,9 => UNS
* INC # D2: 4 # E5: 8,9 => UNS
* INC # D2: 4 # C6: 8,9 => UNS
* INC # D2: 4 # I6: 8,9 => UNS
* INC # D2: 4 # D1: 8,9 => UNS
* INC # D2: 4 # D1: 6,7 => UNS
* INC # D2: 4 => UNS
* INC # H2: 4 # I2: 7,9 => UNS
* INC # H2: 4 # I3: 7,9 => UNS
* INC # H2: 4 # B1: 7,9 => UNS
* INC # H2: 4 # C1: 7,9 => UNS
* INC # H2: 4 # D1: 7,9 => UNS
* INC # H2: 4 # E1: 7,9 => UNS
* INC # H2: 4 # F1: 7,9 => UNS
* INC # H2: 4 # H7: 7,9 => UNS
* INC # H2: 4 # H7: 1 => UNS
* INC # H2: 4 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for H1,H2: 4..:

* INC # H1: 4 # E4: 8,9 => UNS
* INC # H1: 4 # F4: 8,9 => UNS
* INC # H1: 4 # E5: 8,9 => UNS
* INC # H1: 4 # C6: 8,9 => UNS
* INC # H1: 4 # I6: 8,9 => UNS
* INC # H1: 4 # D1: 8,9 => UNS
* INC # H1: 4 # D1: 6,7 => UNS
* INC # H1: 4 => UNS
* INC # H2: 4 # I2: 7,9 => UNS
* INC # H2: 4 # I3: 7,9 => UNS
* INC # H2: 4 # B1: 7,9 => UNS
* INC # H2: 4 # C1: 7,9 => UNS
* INC # H2: 4 # D1: 7,9 => UNS
* INC # H2: 4 # E1: 7,9 => UNS
* INC # H2: 4 # F1: 7,9 => UNS
* INC # H2: 4 # H7: 7,9 => UNS
* INC # H2: 4 # H7: 1 => UNS
* INC # H2: 4 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for G2,G4: 5..:

* INC # G4: 5 # G5: 8,9 => UNS
* INC # G4: 5 # G5: 1 => UNS
* INC # G4: 5 # C6: 8,9 => UNS
* INC # G4: 5 # D6: 8,9 => UNS
* INC # G4: 5 # F6: 8,9 => UNS
* PRF # G4: 5 # I2: 8,9 => SOL
* STA # G4: 5 + I2: 8,9
* CNT   6 HDP CHAINS /   7 HYP OPENED