Analysis of xx-ph-00066107-12_11-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7..6..75..4......3..8.7.5....9.3....2..1......7...63...2...1.7...5.8....4..7.. initial

Autosolve

position: 98.7..6..75..4......3..8.7.5....9.3....2..1......7...63...27..1.7...5.8....4..7.. 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

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000010

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

Very Deep Constraint Pair Analysis

Very Deep Constraint Pair Analysis

Time used: 0:00:34.292951

List of important HDP chains detected for H1,H2: 1..:

* DIS # H1: 1 # A3: 2,4 # I1: 2,4 => CTR => I1: 3,5
* DIS # H1: 1 # A3: 2,4 + I1: 3,5 # D2: 1,6 => CTR => D2: 3,9
* PRF # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # B4: 1,6 => SOL
* STA # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 + B4: 1,6
* CNT   3 HDP CHAINS /  34 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..75..4......3..8.7.5....9.3....2..1......7...63...2...1.7...5.8....4..7.. initial
98.7..6..75..4......3..8.7.5....9.3....2..1......7...63...27..1.7...5.8....4..7.. autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H1,H2: 1.. / H1 = 1  =>  4 pairs (_) / H2 = 1  =>  1 pairs (_)
F1,F2: 2.. / F1 = 2  =>  1 pairs (_) / F2 = 2  =>  3 pairs (_)
B5,B6: 3.. / B5 = 3  =>  1 pairs (_) / B6 = 3  =>  1 pairs (_)
G2,G8: 3.. / G2 = 3  =>  0 pairs (_) / G8 = 3  =>  0 pairs (_)
F5,F6: 4.. / F5 = 4  =>  3 pairs (_) / F6 = 4  =>  1 pairs (_)
E5,D6: 5.. / E5 = 5  =>  2 pairs (_) / D6 = 5  =>  0 pairs (_)
C7,C9: 5.. / C7 = 5  =>  2 pairs (_) / C9 = 5  =>  0 pairs (_)
D3,D6: 5.. / D3 = 5  =>  2 pairs (_) / D6 = 5  =>  0 pairs (_)
H7,H9: 6.. / H7 = 6  =>  2 pairs (_) / H9 = 6  =>  1 pairs (_)
C4,C5: 7.. / C4 = 7  =>  0 pairs (_) / C5 = 7  =>  0 pairs (_)
I4,I5: 7.. / I4 = 7  =>  0 pairs (_) / I5 = 7  =>  0 pairs (_)
C4,I4: 7.. / C4 = 7  =>  0 pairs (_) / I4 = 7  =>  0 pairs (_)
C5,I5: 7.. / C5 = 7  =>  0 pairs (_) / I5 = 7  =>  0 pairs (_)
G2,I2: 8.. / G2 = 8  =>  3 pairs (_) / I2 = 8  =>  0 pairs (_)
D7,E9: 8.. / D7 = 8  =>  1 pairs (_) / E9 = 8  =>  2 pairs (_)
C7,D7: 8.. / C7 = 8  =>  2 pairs (_) / D7 = 8  =>  1 pairs (_)
* DURATION: 0:00:09.929149  START: 09:37:16.414503  END: 09:37:26.343652 2020-12-22
* CP COUNT: (16)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H1,H2: 1.. / H1 = 1 ==>  4 pairs (_) / H2 = 1 ==>  1 pairs (_)
F5,F6: 4.. / F5 = 4 ==>  3 pairs (_) / F6 = 4 ==>  1 pairs (_)
F1,F2: 2.. / F1 = 2 ==>  1 pairs (_) / F2 = 2 ==>  3 pairs (_)
G2,I2: 8.. / G2 = 8 ==>  3 pairs (_) / I2 = 8 ==>  0 pairs (_)
C7,D7: 8.. / C7 = 8 ==>  2 pairs (_) / D7 = 8 ==>  1 pairs (_)
D7,E9: 8.. / D7 = 8 ==>  1 pairs (_) / E9 = 8 ==>  2 pairs (_)
H7,H9: 6.. / H7 = 6 ==>  2 pairs (_) / H9 = 6 ==>  1 pairs (_)
D3,D6: 5.. / D3 = 5 ==>  2 pairs (_) / D6 = 5 ==>  0 pairs (_)
C7,C9: 5.. / C7 = 5 ==>  2 pairs (_) / C9 = 5 ==>  0 pairs (_)
E5,D6: 5.. / E5 = 5 ==>  2 pairs (_) / D6 = 5 ==>  0 pairs (_)
B5,B6: 3.. / B5 = 3 ==>  1 pairs (_) / B6 = 3 ==>  1 pairs (_)
C5,I5: 7.. / C5 = 7 ==>  0 pairs (_) / I5 = 7 ==>  0 pairs (_)
C4,I4: 7.. / C4 = 7 ==>  0 pairs (_) / I4 = 7 ==>  0 pairs (_)
I4,I5: 7.. / I4 = 7 ==>  0 pairs (_) / I5 = 7 ==>  0 pairs (_)
C4,C5: 7.. / C4 = 7 ==>  0 pairs (_) / C5 = 7 ==>  0 pairs (_)
G2,G8: 3.. / G2 = 3 ==>  0 pairs (_) / G8 = 3 ==>  0 pairs (_)
* DURATION: 0:01:35.302019  START: 09:37:26.344462  END: 09:39:01.646481 2020-12-22
* DCP COUNT: (16)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
H1,H2: 1.. / H1 = 1 ==>  0 pairs (*) / H2 = 1  =>  0 pairs (X)
* DURATION: 0:00:34.291517  START: 09:39:01.826764  END: 09:39:36.118281 2020-12-22
* REASONING H1,H2: 1..
* DIS # H1: 1 # A3: 2,4 # I1: 2,4 => CTR => I1: 3,5
* DIS # H1: 1 # A3: 2,4 + I1: 3,5 # D2: 1,6 => CTR => D2: 3,9
* PRF # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # B4: 1,6 => SOL
* STA # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 + B4: 1,6
* CNT   3 HDP CHAINS /  34 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

66107;12_11;GP;25;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H1,H2: 1..:

* INC # H1: 1 # A3: 2,4 => UNS
* INC # H1: 1 # B3: 2,4 => UNS
* INC # H1: 1 # I1: 2,4 => UNS
* INC # H1: 1 # I1: 3,5 => UNS
* INC # H1: 1 # C4: 2,4 => UNS
* INC # H1: 1 # C6: 2,4 => UNS
* INC # H1: 1 # C8: 2,4 => UNS
* INC # H1: 1 # I1: 3,5 => UNS
* INC # H1: 1 # I1: 2,4 => UNS
* INC # H1: 1 # E5: 3,5 => UNS
* INC # H1: 1 # E5: 6,8 => UNS
* INC # H1: 1 # F2: 2,3 => UNS
* INC # H1: 1 # F2: 1,6 => UNS
* INC # H1: 1 # I1: 2,3 => UNS
* INC # H1: 1 # I1: 4,5 => UNS
* INC # H1: 1 # G2: 2,9 => UNS
* INC # H1: 1 # I2: 2,9 => UNS
* INC # H1: 1 # G3: 2,9 => UNS
* INC # H1: 1 # I3: 2,9 => UNS
* INC # H1: 1 # H6: 2,9 => UNS
* INC # H1: 1 # H9: 2,9 => UNS
* INC # H1: 1 => UNS
* INC # H2: 1 # A3: 2,6 => UNS
* INC # H2: 1 # B3: 2,6 => UNS
* INC # H2: 1 # F2: 2,6 => UNS
* INC # H2: 1 # F2: 3 => UNS
* INC # H2: 1 # C4: 2,6 => UNS
* INC # H2: 1 # C8: 2,6 => UNS
* INC # H2: 1 # C9: 2,6 => UNS
* INC # H2: 1 => UNS
* CNT  30 HDP CHAINS /  30 HYP OPENED

Full list of HDP chains traversed for F5,F6: 4..:

* INC # F5: 4 # C4: 6,8 => UNS
* INC # F5: 4 # C5: 6,8 => UNS
* INC # F5: 4 # E5: 6,8 => UNS
* INC # F5: 4 # E5: 3,5 => UNS
* INC # F5: 4 # A9: 6,8 => UNS
* INC # F5: 4 # A9: 1,2 => UNS
* INC # F5: 4 # D6: 1,3 => UNS
* INC # F5: 4 # D6: 5,8 => UNS
* INC # F5: 4 # B6: 1,3 => UNS
* INC # F5: 4 # B6: 2,4,9 => UNS
* INC # F5: 4 # F1: 1,3 => UNS
* INC # F5: 4 # F2: 1,3 => UNS
* INC # F5: 4 # F9: 1,3 => UNS
* INC # F5: 4 # I5: 5,9 => UNS
* INC # F5: 4 # G6: 5,9 => UNS
* INC # F5: 4 # H6: 5,9 => UNS
* INC # F5: 4 # H7: 5,9 => UNS
* INC # F5: 4 # H9: 5,9 => UNS
* INC # F5: 4 => UNS
* INC # F6: 4 # E5: 3,6 => UNS
* INC # F6: 4 # E5: 5,8 => UNS
* INC # F6: 4 # B5: 3,6 => UNS
* INC # F6: 4 # B5: 4,9 => UNS
* INC # F6: 4 # F2: 3,6 => UNS
* INC # F6: 4 # F9: 3,6 => UNS
* INC # F6: 4 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for F1,F2: 2..:

* INC # F2: 2 # A3: 1,6 => UNS
* INC # F2: 2 # B3: 1,6 => UNS
* INC # F2: 2 # D2: 1,6 => UNS
* INC # F2: 2 # D2: 3,9 => UNS
* INC # F2: 2 # C4: 1,6 => UNS
* INC # F2: 2 # C8: 1,6 => UNS
* INC # F2: 2 # C9: 1,6 => UNS
* INC # F2: 2 # E1: 1,3 => UNS
* INC # F2: 2 # D2: 1,3 => UNS
* INC # F2: 2 # F6: 1,3 => UNS
* INC # F2: 2 # F9: 1,3 => UNS
* INC # F2: 2 # D2: 1,9 => UNS
* INC # F2: 2 # D2: 3,6 => UNS
* INC # F2: 2 => UNS
* INC # F1: 2 # A3: 1,4 => UNS
* INC # F1: 2 # B3: 1,4 => UNS
* INC # F1: 2 # H1: 1,4 => UNS
* INC # F1: 2 # H1: 5 => UNS
* INC # F1: 2 # C4: 1,4 => UNS
* INC # F1: 2 # C6: 1,4 => UNS
* INC # F1: 2 # C8: 1,4 => UNS
* INC # F1: 2 => UNS
* CNT  22 HDP CHAINS /  22 HYP OPENED

Full list of HDP chains traversed for G2,I2: 8..:

* INC # G2: 8 # G6: 2,4 => UNS
* INC # G2: 8 # H6: 2,4 => UNS
* INC # G2: 8 # B4: 2,4 => UNS
* INC # G2: 8 # C4: 2,4 => UNS
* INC # G2: 8 # G3: 2,4 => UNS
* INC # G2: 8 # G3: 5,9 => UNS
* INC # G2: 8 # C4: 7,8 => UNS
* INC # G2: 8 # C4: 1,2,4,6 => UNS
* INC # G2: 8 # C5: 7,8 => UNS
* INC # G2: 8 # C5: 4,6,9 => UNS
* INC # G2: 8 => UNS
* INC # I2: 8 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for C7,D7: 8..:

* INC # C7: 8 # D4: 1,6 => UNS
* INC # C7: 8 # D4: 8 => UNS
* INC # C7: 8 # B4: 1,6 => UNS
* INC # C7: 8 # C4: 1,6 => UNS
* INC # C7: 8 # E3: 1,6 => UNS
* INC # C7: 8 # E8: 1,6 => UNS
* INC # C7: 8 # D8: 6,9 => UNS
* INC # C7: 8 # E8: 6,9 => UNS
* INC # C7: 8 # B7: 6,9 => UNS
* INC # C7: 8 # H7: 6,9 => UNS
* INC # C7: 8 # D2: 6,9 => UNS
* INC # C7: 8 # D3: 6,9 => UNS
* INC # C7: 8 => UNS
* INC # D7: 8 # E4: 1,6 => UNS
* INC # D7: 8 # E4: 8 => UNS
* INC # D7: 8 # B4: 1,6 => UNS
* INC # D7: 8 # C4: 1,6 => UNS
* INC # D7: 8 # D2: 1,6 => UNS
* INC # D7: 8 # D3: 1,6 => UNS
* INC # D7: 8 # D8: 1,6 => UNS
* INC # D7: 8 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for D7,E9: 8..:

* INC # E9: 8 # D4: 1,6 => UNS
* INC # E9: 8 # D4: 8 => UNS
* INC # E9: 8 # B4: 1,6 => UNS
* INC # E9: 8 # C4: 1,6 => UNS
* INC # E9: 8 # E3: 1,6 => UNS
* INC # E9: 8 # E8: 1,6 => UNS
* INC # E9: 8 # D8: 6,9 => UNS
* INC # E9: 8 # E8: 6,9 => UNS
* INC # E9: 8 # B7: 6,9 => UNS
* INC # E9: 8 # H7: 6,9 => UNS
* INC # E9: 8 # D2: 6,9 => UNS
* INC # E9: 8 # D3: 6,9 => UNS
* INC # E9: 8 => UNS
* INC # D7: 8 # E4: 1,6 => UNS
* INC # D7: 8 # E4: 8 => UNS
* INC # D7: 8 # B4: 1,6 => UNS
* INC # D7: 8 # C4: 1,6 => UNS
* INC # D7: 8 # D2: 1,6 => UNS
* INC # D7: 8 # D3: 1,6 => UNS
* INC # D7: 8 # D8: 1,6 => UNS
* INC # D7: 8 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for H7,H9: 6..:

* INC # H7: 6 # C7: 4,9 => UNS
* INC # H7: 6 # C8: 4,9 => UNS
* INC # H7: 6 # G7: 4,9 => UNS
* INC # H7: 6 # G7: 5 => UNS
* INC # H7: 6 # B5: 4,9 => UNS
* INC # H7: 6 # B6: 4,9 => UNS
* INC # H7: 6 # E9: 8,9 => UNS
* INC # H7: 6 # E9: 1,3,6 => UNS
* INC # H7: 6 # C7: 8,9 => UNS
* INC # H7: 6 # C7: 4,5 => UNS
* INC # H7: 6 => UNS
* INC # H9: 6 # D8: 1,3 => UNS
* INC # H9: 6 # E8: 1,3 => UNS
* INC # H9: 6 # E9: 1,3 => UNS
* INC # H9: 6 # F1: 1,3 => UNS
* INC # H9: 6 # F2: 1,3 => UNS
* INC # H9: 6 # F6: 1,3 => UNS
* INC # H9: 6 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for D3,D6: 5..:

* INC # D3: 5 # F1: 1,3 => UNS
* INC # D3: 5 # D2: 1,3 => UNS
* INC # D3: 5 # F2: 1,3 => UNS
* INC # D3: 5 # E8: 1,3 => UNS
* INC # D3: 5 # E9: 1,3 => UNS
* INC # D3: 5 # I5: 4,9 => UNS
* INC # D3: 5 # G6: 4,9 => UNS
* INC # D3: 5 # H6: 4,9 => UNS
* INC # D3: 5 # B5: 4,9 => UNS
* INC # D3: 5 # C5: 4,9 => UNS
* INC # D3: 5 # H7: 4,9 => UNS
* INC # D3: 5 # H7: 5,6 => UNS
* INC # D3: 5 => UNS
* INC # D6: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for C7,C9: 5..:

* INC # C7: 5 # E4: 1,6 => UNS
* INC # C7: 5 # E4: 8 => UNS
* INC # C7: 5 # B4: 1,6 => UNS
* INC # C7: 5 # C4: 1,6 => UNS
* INC # C7: 5 # D2: 1,6 => UNS
* INC # C7: 5 # D3: 1,6 => UNS
* INC # C7: 5 # D8: 1,6 => UNS
* INC # C7: 5 # H7: 4,9 => UNS
* INC # C7: 5 # G8: 4,9 => UNS
* INC # C7: 5 # I8: 4,9 => UNS
* INC # C7: 5 # B7: 4,9 => UNS
* INC # C7: 5 # B7: 6 => UNS
* INC # C7: 5 # G3: 4,9 => UNS
* INC # C7: 5 # G6: 4,9 => UNS
* INC # C7: 5 => UNS
* INC # C9: 5 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for E5,D6: 5..:

* INC # E5: 5 # F1: 1,3 => UNS
* INC # E5: 5 # D2: 1,3 => UNS
* INC # E5: 5 # F2: 1,3 => UNS
* INC # E5: 5 # E8: 1,3 => UNS
* INC # E5: 5 # E9: 1,3 => UNS
* INC # E5: 5 # I5: 4,9 => UNS
* INC # E5: 5 # G6: 4,9 => UNS
* INC # E5: 5 # H6: 4,9 => UNS
* INC # E5: 5 # B5: 4,9 => UNS
* INC # E5: 5 # C5: 4,9 => UNS
* INC # E5: 5 # H7: 4,9 => UNS
* INC # E5: 5 # H7: 5,6 => UNS
* INC # E5: 5 => UNS
* INC # D6: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for B5,B6: 3..:

* INC # B5: 3 # A5: 4,6 => UNS
* INC # B5: 3 # C5: 4,6 => UNS
* INC # B5: 3 => UNS
* INC # B6: 3 # A6: 1,4 => UNS
* INC # B6: 3 # C6: 1,4 => UNS
* INC # B6: 3 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for C5,I5: 7..:

* INC # C5: 7 => UNS
* INC # I5: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for C4,I4: 7..:

* INC # C4: 7 => UNS
* INC # I4: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for I4,I5: 7..:

* INC # I4: 7 => UNS
* INC # I5: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for C4,C5: 7..:

* INC # C4: 7 => UNS
* INC # C5: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for G2,G8: 3..:

* INC # G2: 3 => UNS
* INC # G8: 3 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for H1,H2: 1..:

* INC # H1: 1 # A3: 2,4 => UNS
* INC # H1: 1 # B3: 2,4 => UNS
* INC # H1: 1 # I1: 2,4 => UNS
* INC # H1: 1 # I1: 3,5 => UNS
* INC # H1: 1 # C4: 2,4 => UNS
* INC # H1: 1 # C6: 2,4 => UNS
* INC # H1: 1 # C8: 2,4 => UNS
* INC # H1: 1 # I1: 3,5 => UNS
* INC # H1: 1 # I1: 2,4 => UNS
* INC # H1: 1 # E5: 3,5 => UNS
* INC # H1: 1 # E5: 6,8 => UNS
* INC # H1: 1 # F2: 2,3 => UNS
* INC # H1: 1 # F2: 1,6 => UNS
* INC # H1: 1 # I1: 2,3 => UNS
* INC # H1: 1 # I1: 4,5 => UNS
* INC # H1: 1 # G2: 2,9 => UNS
* INC # H1: 1 # I2: 2,9 => UNS
* INC # H1: 1 # G3: 2,9 => UNS
* INC # H1: 1 # I3: 2,9 => UNS
* INC # H1: 1 # H6: 2,9 => UNS
* INC # H1: 1 # H9: 2,9 => UNS
* DIS # H1: 1 # A3: 2,4 # I1: 2,4 => CTR => I1: 3,5
* DIS # H1: 1 # A3: 2,4 + I1: 3,5 # D2: 1,6 => CTR => D2: 3,9
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # C4: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # C8: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # C9: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # C4: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # C8: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # C9: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # D3: 1,6 => UNS
* INC # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # E3: 1,6 => UNS
* PRF # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 # B4: 1,6 => SOL
* STA # H1: 1 # A3: 2,4 + I1: 3,5 + D2: 3,9 + B4: 1,6
* CNT  32 HDP CHAINS /  34 HYP OPENED