Analysis of xx-ph-00061159-12_11-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7.....6...9......7..59..4..3...5...8.7...9.....4.2..1...73....6.5...7...2..51. initial

Autosolve

position: 98.7.....6...9..7...7..59..4..3...5...8.7...9.....4.2..1...73....6.5...7...2..51. 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

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

Deep Constraint Pair Analysis

Time used: 0:00:00.000006

See Appendix: Full HDP Chains for full list of HDP chains.

Very Deep Constraint Pair Analysis

Very Deep Constraint Pair Analysis

Time used: 0:00:51.535597

List of important HDP chains detected for G5,H5: 4..:

* DIS # H5: 4 # H3: 8 # G4: 1,6 => CTR => G4: 7,8
* DIS # H5: 4 # H3: 8 + G4: 7,8 # D7: 4,8 => CTR => D7: 9
* PRF # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # C2: 1,2 => SOL
* STA # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 + C2: 1,2
* CNT   3 HDP CHAINS /  68 HYP OPENED

See Appendix: Full HDP Chains for full list of HDP chains.

Details

This sudoku is very deep. Here is some information that may be helpful on how to proceed.

Positions

98.7.....6...9......7..59..4..3...5...8.7...9.....4.2..1...73....6.5...7...2..51. initial
98.7.....6...9..7...7..59..4..3...5...8.7...9.....4.2..1...73....6.5...7...2..51. autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D8,F8: 1.. / D8 = 1  =>  2 pairs (_) / F8 = 1  =>  3 pairs (_)
I7,G8: 2.. / I7 = 2  =>  2 pairs (_) / G8 = 2  =>  3 pairs (_)
H5,I6: 3.. / H5 = 3  =>  2 pairs (_) / I6 = 3  =>  1 pairs (_)
G5,H5: 4.. / G5 = 4  =>  2 pairs (_) / H5 = 4  =>  3 pairs (_)
I1,I2: 5.. / I1 = 5  =>  0 pairs (_) / I2 = 5  =>  0 pairs (_)
D5,D6: 5.. / D5 = 5  =>  0 pairs (_) / D6 = 5  =>  3 pairs (_)
A7,C7: 5.. / A7 = 5  =>  0 pairs (_) / C7 = 5  =>  1 pairs (_)
C1,I1: 5.. / C1 = 5  =>  0 pairs (_) / I1 = 5  =>  0 pairs (_)
G4,G6: 7.. / G4 = 7  =>  0 pairs (_) / G6 = 7  =>  0 pairs (_)
A9,B9: 7.. / A9 = 7  =>  0 pairs (_) / B9 = 7  =>  1 pairs (_)
B4,G4: 7.. / B4 = 7  =>  0 pairs (_) / G4 = 7  =>  0 pairs (_)
A6,A9: 7.. / A6 = 7  =>  1 pairs (_) / A9 = 7  =>  0 pairs (_)
F4,D6: 9.. / F4 = 9  =>  1 pairs (_) / D6 = 9  =>  0 pairs (_)
H7,H8: 9.. / H7 = 9  =>  2 pairs (_) / H8 = 9  =>  0 pairs (_)
* DURATION: 0:00:08.800873  START: 13:00:14.633656  END: 13:00:23.434529 2020-12-21
* CP COUNT: (14)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
G5,H5: 4.. / G5 = 4 ==>  2 pairs (_) / H5 = 4 ==>  3 pairs (_)
I7,G8: 2.. / I7 = 2 ==>  2 pairs (_) / G8 = 2 ==>  3 pairs (_)
D8,F8: 1.. / D8 = 1 ==>  2 pairs (_) / F8 = 1 ==>  3 pairs (_)
D5,D6: 5.. / D5 = 5 ==>  0 pairs (_) / D6 = 5 ==>  3 pairs (_)
H5,I6: 3.. / H5 = 3 ==>  2 pairs (_) / I6 = 3 ==>  1 pairs (_)
H7,H8: 9.. / H7 = 9 ==>  2 pairs (_) / H8 = 9 ==>  0 pairs (_)
F4,D6: 9.. / F4 = 9 ==>  1 pairs (_) / D6 = 9 ==>  0 pairs (_)
A6,A9: 7.. / A6 = 7 ==>  1 pairs (_) / A9 = 7 ==>  0 pairs (_)
A9,B9: 7.. / A9 = 7 ==>  0 pairs (_) / B9 = 7 ==>  1 pairs (_)
A7,C7: 5.. / A7 = 5 ==>  0 pairs (_) / C7 = 5 ==>  1 pairs (_)
B4,G4: 7.. / B4 = 7 ==>  0 pairs (_) / G4 = 7 ==>  0 pairs (_)
G4,G6: 7.. / G4 = 7 ==>  0 pairs (_) / G6 = 7 ==>  0 pairs (_)
C1,I1: 5.. / C1 = 5 ==>  0 pairs (_) / I1 = 5 ==>  0 pairs (_)
I1,I2: 5.. / I1 = 5 ==>  0 pairs (_) / I2 = 5 ==>  0 pairs (_)
* DURATION: 0:01:12.232264  START: 13:00:23.435084  END: 13:01:35.667348 2020-12-21
* DCP COUNT: (14)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
G5,H5: 4.. / G5 = 4  =>  0 pairs (X) / H5 = 4 ==>  0 pairs (*)
* DURATION: 0:00:51.532627  START: 13:01:35.835328  END: 13:02:27.367955 2020-12-21
* REASONING G5,H5: 4..
* DIS # H5: 4 # H3: 8 # G4: 1,6 => CTR => G4: 7,8
* DIS # H5: 4 # H3: 8 + G4: 7,8 # D7: 4,8 => CTR => D7: 9
* PRF # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # C2: 1,2 => SOL
* STA # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 + C2: 1,2
* CNT   3 HDP CHAINS /  68 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

61159;12_11;GP;25;11.30;1.50;1.50

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for G5,H5: 4..:

* INC # H5: 4 # H3: 3,6 => UNS
* INC # H5: 4 # H3: 8 => UNS
* INC # H5: 4 # E1: 3,6 => UNS
* INC # H5: 4 # F1: 3,6 => UNS
* INC # H5: 4 # G4: 1,6 => UNS
* INC # H5: 4 # I4: 1,6 => UNS
* INC # H5: 4 # G6: 1,6 => UNS
* INC # H5: 4 # D5: 1,6 => UNS
* INC # H5: 4 # F5: 1,6 => UNS
* INC # H5: 4 # G1: 1,6 => UNS
* INC # H5: 4 # G1: 2,4 => UNS
* INC # H5: 4 # H7: 8,9 => UNS
* INC # H5: 4 # H7: 6 => UNS
* INC # H5: 4 # D8: 8,9 => UNS
* INC # H5: 4 # F8: 8,9 => UNS
* INC # H5: 4 => UNS
* INC # G5: 4 # I6: 3,6 => UNS
* INC # G5: 4 # I6: 1,8 => UNS
* INC # G5: 4 # B5: 3,6 => UNS
* INC # G5: 4 # B5: 2,5 => UNS
* INC # G5: 4 # H1: 3,6 => UNS
* INC # G5: 4 # H3: 3,6 => UNS
* INC # G5: 4 # I7: 2,8 => UNS
* INC # G5: 4 # I7: 4,6 => UNS
* INC # G5: 4 # A8: 2,8 => UNS
* INC # G5: 4 # A8: 3 => UNS
* INC # G5: 4 # G2: 2,8 => UNS
* INC # G5: 4 # G2: 1 => UNS
* INC # G5: 4 => UNS
* CNT  29 HDP CHAINS /  29 HYP OPENED

Full list of HDP chains traversed for I7,G8: 2..:

* INC # G8: 2 # A5: 2,5 => UNS
* INC # G8: 2 # A5: 1,3 => UNS
* INC # G8: 2 # C1: 2,5 => UNS
* INC # G8: 2 # C2: 2,5 => UNS
* INC # G8: 2 # A9: 3,8 => UNS
* INC # G8: 2 # A9: 7 => UNS
* INC # G8: 2 # F8: 3,8 => UNS
* INC # G8: 2 # F8: 1,9 => UNS
* INC # G8: 2 => UNS
* INC # I7: 2 # H7: 4,8 => UNS
* INC # I7: 2 # H8: 4,8 => UNS
* INC # I7: 2 # I9: 4,8 => UNS
* INC # I7: 2 # D8: 4,8 => UNS
* INC # I7: 2 # D8: 1,9 => UNS
* INC # I7: 2 # G2: 4,8 => UNS
* INC # I7: 2 # G2: 1,2 => UNS
* INC # I7: 2 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for D8,F8: 1..:

* INC # F8: 1 # E4: 2,6 => UNS
* INC # F8: 1 # F4: 2,6 => UNS
* INC # F8: 1 # B5: 2,6 => UNS
* INC # F8: 1 # B5: 3,5 => UNS
* INC # F8: 1 # F1: 2,6 => UNS
* INC # F8: 1 # F1: 3 => UNS
* INC # F8: 1 # C7: 4,9 => UNS
* INC # F8: 1 # B8: 4,9 => UNS
* INC # F8: 1 # B9: 4,9 => UNS
* INC # F8: 1 => UNS
* INC # D8: 1 # D3: 4,8 => UNS
* INC # D8: 1 # E3: 4,8 => UNS
* INC # D8: 1 # G2: 4,8 => UNS
* INC # D8: 1 # I2: 4,8 => UNS
* INC # D8: 1 # D7: 4,8 => UNS
* INC # D8: 1 # D7: 6,9 => UNS
* INC # D8: 1 # D6: 5,6 => UNS
* INC # D8: 1 # D6: 8,9 => UNS
* INC # D8: 1 # B5: 5,6 => UNS
* INC # D8: 1 # B5: 2,3 => UNS
* INC # D8: 1 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for D5,D6: 5..:

* INC # D6: 5 # A5: 1,2 => UNS
* INC # D6: 5 # A5: 3,5 => UNS
* INC # D6: 5 # E4: 1,2 => UNS
* INC # D6: 5 # E4: 6,8 => UNS
* INC # D6: 5 # C1: 1,2 => UNS
* INC # D6: 5 # C2: 1,2 => UNS
* INC # D6: 5 # E4: 1,6 => UNS
* INC # D6: 5 # F5: 1,6 => UNS
* INC # D6: 5 # E6: 1,6 => UNS
* INC # D6: 5 # G5: 1,6 => UNS
* INC # D6: 5 # G5: 4 => UNS
* INC # D6: 5 # D3: 1,6 => UNS
* INC # D6: 5 # D3: 4,8 => UNS
* INC # D6: 5 # D7: 4,6 => UNS
* INC # D6: 5 # E9: 4,6 => UNS
* INC # D6: 5 # H7: 4,6 => UNS
* INC # D6: 5 # I7: 4,6 => UNS
* INC # D6: 5 # E1: 4,6 => UNS
* INC # D6: 5 # E3: 4,6 => UNS
* INC # D6: 5 => UNS
* INC # D5: 5 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for H5,I6: 3..:

* INC # H5: 3 # I1: 4,6 => UNS
* INC # H5: 3 # H3: 4,6 => UNS
* INC # H5: 3 # I3: 4,6 => UNS
* INC # H5: 3 # E1: 4,6 => UNS
* INC # H5: 3 # E1: 1,2,3 => UNS
* INC # H5: 3 # H7: 4,6 => UNS
* INC # H5: 3 # H7: 8,9 => UNS
* INC # H5: 3 # I7: 2,8 => UNS
* INC # H5: 3 # I7: 4,6 => UNS
* INC # H5: 3 # A8: 2,8 => UNS
* INC # H5: 3 # A8: 3 => UNS
* INC # H5: 3 # G2: 2,8 => UNS
* INC # H5: 3 # G2: 1 => UNS
* INC # H5: 3 => UNS
* INC # I6: 3 # G5: 4,6 => UNS
* INC # I6: 3 # G5: 1 => UNS
* INC # I6: 3 # H1: 4,6 => UNS
* INC # I6: 3 # H3: 4,6 => UNS
* INC # I6: 3 # H7: 4,6 => UNS
* INC # I6: 3 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for H7,H8: 9..:

* INC # H7: 9 # G4: 1,8 => UNS
* INC # H7: 9 # G6: 1,8 => UNS
* INC # H7: 9 # I6: 1,8 => UNS
* INC # H7: 9 # E4: 1,8 => UNS
* INC # H7: 9 # F4: 1,8 => UNS
* INC # H7: 9 # I2: 1,8 => UNS
* INC # H7: 9 # I3: 1,8 => UNS
* INC # H7: 9 # I7: 4,8 => UNS
* INC # H7: 9 # G8: 4,8 => UNS
* INC # H7: 9 # I9: 4,8 => UNS
* INC # H7: 9 # D8: 4,8 => UNS
* INC # H7: 9 # D8: 1,9 => UNS
* INC # H7: 9 # H3: 4,8 => UNS
* INC # H7: 9 # H3: 3,6 => UNS
* INC # H7: 9 => UNS
* INC # H8: 9 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for F4,D6: 9..:

* INC # F4: 9 # A5: 1,2 => UNS
* INC # F4: 9 # A5: 3,5 => UNS
* INC # F4: 9 # E4: 1,2 => UNS
* INC # F4: 9 # E4: 6,8 => UNS
* INC # F4: 9 # C1: 1,2 => UNS
* INC # F4: 9 # C2: 1,2 => UNS
* INC # F4: 9 => UNS
* INC # D6: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for A6,A9: 7..:

* INC # A6: 7 # A8: 3,8 => UNS
* INC # A6: 7 # A8: 2 => UNS
* INC # A6: 7 # E9: 3,8 => UNS
* INC # A6: 7 # F9: 3,8 => UNS
* INC # A6: 7 => UNS
* INC # A9: 7 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for A9,B9: 7..:

* INC # B9: 7 # A8: 3,8 => UNS
* INC # B9: 7 # A8: 2 => UNS
* INC # B9: 7 # E9: 3,8 => UNS
* INC # B9: 7 # F9: 3,8 => UNS
* INC # B9: 7 => UNS
* INC # A9: 7 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for A7,C7: 5..:

* INC # C7: 5 # A8: 2,8 => UNS
* INC # C7: 5 # A8: 3 => UNS
* INC # C7: 5 # I7: 2,8 => UNS
* INC # C7: 5 # I7: 4,6 => UNS
* INC # C7: 5 => UNS
* INC # A7: 5 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for B4,G4: 7..:

* INC # B4: 7 => UNS
* INC # G4: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for G4,G6: 7..:

* INC # G4: 7 => UNS
* INC # G6: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for C1,I1: 5..:

* INC # C1: 5 => UNS
* INC # I1: 5 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for I1,I2: 5..:

* INC # I1: 5 => UNS
* INC # I2: 5 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for G5,H5: 4..:

* INC # H5: 4 # H3: 3,6 => UNS
* INC # H5: 4 # H3: 8 => UNS
* INC # H5: 4 # E1: 3,6 => UNS
* INC # H5: 4 # F1: 3,6 => UNS
* INC # H5: 4 # G4: 1,6 => UNS
* INC # H5: 4 # I4: 1,6 => UNS
* INC # H5: 4 # G6: 1,6 => UNS
* INC # H5: 4 # D5: 1,6 => UNS
* INC # H5: 4 # F5: 1,6 => UNS
* INC # H5: 4 # G1: 1,6 => UNS
* INC # H5: 4 # G1: 2,4 => UNS
* INC # H5: 4 # H7: 8,9 => UNS
* INC # H5: 4 # H7: 6 => UNS
* INC # H5: 4 # D8: 8,9 => UNS
* INC # H5: 4 # F8: 8,9 => UNS
* INC # H5: 4 # H3: 3,6 # E1: 3,6 => UNS
* INC # H5: 4 # H3: 3,6 # F1: 3,6 => UNS
* INC # H5: 4 # H3: 3,6 # E3: 3,6 => UNS
* INC # H5: 4 # H3: 3,6 # E3: 1,2,4,8 => UNS
* INC # H5: 4 # H3: 3,6 # G4: 1,8 => UNS
* INC # H5: 4 # H3: 3,6 # G6: 1,8 => UNS
* INC # H5: 4 # H3: 3,6 # E4: 1,8 => UNS
* INC # H5: 4 # H3: 3,6 # F4: 1,8 => UNS
* INC # H5: 4 # H3: 3,6 # I2: 1,8 => UNS
* INC # H5: 4 # H3: 3,6 # I3: 1,8 => UNS
* INC # H5: 4 # H3: 3,6 # G4: 1,6 => UNS
* INC # H5: 4 # H3: 3,6 # G6: 1,6 => UNS
* INC # H5: 4 # H3: 3,6 # D5: 1,6 => UNS
* INC # H5: 4 # H3: 3,6 # F5: 1,6 => UNS
* INC # H5: 4 # H3: 3,6 # D7: 8,9 => UNS
* INC # H5: 4 # H3: 3,6 # D7: 4,6 => UNS
* INC # H5: 4 # H3: 3,6 # I7: 2,4 => UNS
* INC # H5: 4 # H3: 3,6 # I7: 6 => UNS
* INC # H5: 4 # H3: 3,6 # B8: 2,4 => UNS
* INC # H5: 4 # H3: 3,6 # B8: 3,9 => UNS
* INC # H5: 4 # H3: 3,6 # G1: 2,4 => UNS
* INC # H5: 4 # H3: 3,6 # G2: 2,4 => UNS
* INC # H5: 4 # H3: 3,6 # D8: 8,9 => UNS
* INC # H5: 4 # H3: 3,6 # F8: 8,9 => UNS
* INC # H5: 4 # H3: 3,6 # I7: 4,6 => UNS
* INC # H5: 4 # H3: 3,6 # I7: 2 => UNS
* INC # H5: 4 # H3: 3,6 # E9: 4,6 => UNS
* INC # H5: 4 # H3: 3,6 # E9: 3,8 => UNS
* INC # H5: 4 # H3: 3,6 => UNS
* DIS # H5: 4 # H3: 8 # G4: 1,6 => CTR => G4: 7,8
* INC # H5: 4 # H3: 8 + G4: 7,8 # I4: 1,6 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 # G6: 1,6 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 # D5: 1,6 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 # F5: 1,6 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 # G1: 1,6 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 # G1: 2,4 => UNS
* DIS # H5: 4 # H3: 8 + G4: 7,8 # D7: 4,8 => CTR => D7: 9
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # D8: 4,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # E9: 4,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # I7: 4,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # I7: 2 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # I7: 4,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # G8: 4,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # E9: 4,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # E9: 3,6 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # A5: 1,2 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # A5: 3,5 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # E4: 1,2 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # E4: 6,8 => UNS
* INC # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # C1: 1,2 => UNS
* PRF # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 # C2: 1,2 => SOL
* STA # H5: 4 # H3: 8 + G4: 7,8 + D7: 9 + C2: 1,2
* CNT  66 HDP CHAINS /  68 HYP OPENED