Analysis of xx-ph-00038348-12_07-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.....8.........75.9.6..7......4..3......2..1.7.8..5....2.1.........3.4. initial

Autosolve

position: 98.7.....6.7...8.........75.9.6..7......4..3......2..1.7.8..5....2.1.........3.4. 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

Time used: 0:00:00.000007

List of important HDP chains detected for H7,G9: 1..:

* DIS # H7: 1 # G1: 2,6 => CTR => G1: 1,3,4
* DIS # H7: 1 + G1: 1,3,4 # I2: 2,9 => CTR => I2: 3,4
* DIS # H7: 1 + G1: 1,3,4 + I2: 3,4 # G3: 2,9 => CTR => G3: 1,3,4,6
* CNT   3 HDP CHAINS /  43 HYP OPENED

List of important HDP chains detected for C7,C9: 9..:

* DIS # C7: 9 # E9: 2,6 => CTR => E9: 5,7,9
* DIS # C7: 9 + E9: 5,7,9 # F8: 4,6 => CTR => F8: 5,7,9
* CNT   2 HDP CHAINS /  24 HYP OPENED

List of important HDP chains detected for I4,G6: 4..:

* PRF # I4: 4 # G8: 6,9 => SOL
* STA # I4: 4 + G8: 6,9
* CNT   1 HDP CHAINS /   6 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.....8.........75.9.6..7......4..3......2..1.7.8..5....2.1.........3.4. initial
98.7.....6.7...8.........75.9.6..7......4..3......2..1.7.8..5....2.1.........3.4. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H7,G9: 1.. / H7 = 1  =>  3 pairs (_) / G9 = 1  =>  2 pairs (_)
I4,G6: 4.. / I4 = 4  =>  1 pairs (_) / G6 = 4  =>  1 pairs (_)
C1,B2: 5.. / C1 = 5  =>  0 pairs (_) / B2 = 5  =>  1 pairs (_)
H4,H6: 5.. / H4 = 5  =>  2 pairs (_) / H6 = 5  =>  2 pairs (_)
A5,A6: 7.. / A5 = 7  =>  0 pairs (_) / A6 = 7  =>  0 pairs (_)
F5,E6: 7.. / F5 = 7  =>  0 pairs (_) / E6 = 7  =>  0 pairs (_)
F8,E9: 7.. / F8 = 7  =>  0 pairs (_) / E9 = 7  =>  0 pairs (_)
I8,I9: 7.. / I8 = 7  =>  0 pairs (_) / I9 = 7  =>  0 pairs (_)
A5,F5: 7.. / A5 = 7  =>  0 pairs (_) / F5 = 7  =>  0 pairs (_)
A6,E6: 7.. / A6 = 7  =>  0 pairs (_) / E6 = 7  =>  0 pairs (_)
F8,I8: 7.. / F8 = 7  =>  0 pairs (_) / I8 = 7  =>  0 pairs (_)
E9,I9: 7.. / E9 = 7  =>  0 pairs (_) / I9 = 7  =>  0 pairs (_)
E6,E9: 7.. / E6 = 7  =>  0 pairs (_) / E9 = 7  =>  0 pairs (_)
F5,F8: 7.. / F5 = 7  =>  0 pairs (_) / F8 = 7  =>  0 pairs (_)
E3,F3: 8.. / E3 = 8  =>  1 pairs (_) / F3 = 8  =>  1 pairs (_)
C7,C9: 9.. / C7 = 9  =>  2 pairs (_) / C9 = 9  =>  1 pairs (_)
* DURATION: 0:00:09.649909  START: 06:43:20.488572  END: 06:43:30.138481 2020-12-17
* CP COUNT: (16)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H7,G9: 1.. / H7 = 1 ==>  4 pairs (_) / G9 = 1 ==>  2 pairs (_)
H4,H6: 5.. / H4 = 5 ==>  2 pairs (_) / H6 = 5 ==>  2 pairs (_)
C7,C9: 9.. / C7 = 9 ==>  4 pairs (_) / C9 = 9 ==>  1 pairs (_)
E3,F3: 8.. / E3 = 8 ==>  1 pairs (_) / F3 = 8 ==>  1 pairs (_)
I4,G6: 4.. / I4 = 4 ==>  0 pairs (*) / G6 = 4  =>  0 pairs (X)
* DURATION: 0:00:59.471674  START: 06:43:30.139094  END: 06:44:29.610768 2020-12-17
* REASONING H7,G9: 1..
* DIS # H7: 1 # G1: 2,6 => CTR => G1: 1,3,4
* DIS # H7: 1 + G1: 1,3,4 # I2: 2,9 => CTR => I2: 3,4
* DIS # H7: 1 + G1: 1,3,4 + I2: 3,4 # G3: 2,9 => CTR => G3: 1,3,4,6
* CNT   3 HDP CHAINS /  43 HYP OPENED
* REASONING C7,C9: 9..
* DIS # C7: 9 # E9: 2,6 => CTR => E9: 5,7,9
* DIS # C7: 9 + E9: 5,7,9 # F8: 4,6 => CTR => F8: 5,7,9
* CNT   2 HDP CHAINS /  24 HYP OPENED
* REASONING I4,G6: 4..
* PRF # I4: 4 # G8: 6,9 => SOL
* STA # I4: 4 + G8: 6,9
* CNT   1 HDP CHAINS /   6 HYP OPENED
* DCP COUNT: (5)
* SOLUTION FOUND

Header Info

38348;12_07;GP;21;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H7,G9: 1..:

* DIS # H7: 1 # G1: 2,6 => CTR => G1: 1,3,4
* INC # H7: 1 + G1: 1,3,4 # I1: 2,6 => UNS
* INC # H7: 1 + G1: 1,3,4 # G3: 2,6 => UNS
* INC # H7: 1 + G1: 1,3,4 # E1: 2,6 => UNS
* INC # H7: 1 + G1: 1,3,4 # E1: 3,5 => UNS
* DIS # H7: 1 + G1: 1,3,4 # I2: 2,9 => CTR => I2: 3,4
* DIS # H7: 1 + G1: 1,3,4 + I2: 3,4 # G3: 2,9 => CTR => G3: 1,3,4,6
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # C7: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A8: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # B8: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A3: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A4: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A6: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # I1: 2,6 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # I1: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # G1: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # I1: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # G3: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # B2: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # D2: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # C7: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A8: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # B8: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A3: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A4: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # A6: 3,4 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # I8: 6,8 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # I9: 6,8 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # H6: 6,8 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 # H6: 5 => UNS
* INC # H7: 1 + G1: 1,3,4 + I2: 3,4 + G3: 1,3,4,6 => UNS
* INC # G9: 1 # A8: 5,8 => UNS
* INC # G9: 1 # C9: 5,8 => UNS
* INC # G9: 1 # A4: 5,8 => UNS
* INC # G9: 1 # A5: 5,8 => UNS
* INC # G9: 1 # A6: 5,8 => UNS
* INC # G9: 1 # B8: 5,6 => UNS
* INC # G9: 1 # C9: 5,6 => UNS
* INC # G9: 1 # E9: 5,6 => UNS
* INC # G9: 1 # E9: 2,7,9 => UNS
* INC # G9: 1 # B5: 5,6 => UNS
* INC # G9: 1 # B6: 5,6 => UNS
* INC # G9: 1 => UNS
* CNT  43 HDP CHAINS /  43 HYP OPENED

Full list of HDP chains traversed for H4,H6: 5..:

* INC # H4: 5 # E6: 3,8 => UNS
* INC # H4: 5 # E6: 5,7,9 => UNS
* INC # H4: 5 # A4: 3,8 => UNS
* INC # H4: 5 # C4: 3,8 => UNS
* INC # H4: 5 # E3: 3,8 => UNS
* INC # H4: 5 # E3: 2,6,9 => UNS
* INC # H4: 5 # F5: 1,8 => UNS
* INC # H4: 5 # F5: 5,7,9 => UNS
* INC # H4: 5 # A4: 1,8 => UNS
* INC # H4: 5 # C4: 1,8 => UNS
* INC # H4: 5 # F3: 1,8 => UNS
* INC # H4: 5 # F3: 4,6,9 => UNS
* INC # H4: 5 => UNS
* INC # H6: 5 # E6: 3,9 => UNS
* INC # H6: 5 # E6: 7,8 => UNS
* INC # H6: 5 # D2: 3,9 => UNS
* INC # H6: 5 # D3: 3,9 => UNS
* INC # H6: 5 # I4: 2,8 => UNS
* INC # H6: 5 # I5: 2,8 => UNS
* INC # H6: 5 # A4: 2,8 => UNS
* INC # H6: 5 # A4: 1,3,4,5 => UNS
* INC # H6: 5 => UNS
* CNT  22 HDP CHAINS /  22 HYP OPENED

Full list of HDP chains traversed for C7,C9: 9..:

* DIS # C7: 9 # E9: 2,6 => CTR => E9: 5,7,9
* INC # C7: 9 + E9: 5,7,9 # H7: 2,6 => UNS
* INC # C7: 9 + E9: 5,7,9 # I7: 2,6 => UNS
* INC # C7: 9 + E9: 5,7,9 # E1: 2,6 => UNS
* INC # C7: 9 + E9: 5,7,9 # E3: 2,6 => UNS
* DIS # C7: 9 + E9: 5,7,9 # F8: 4,6 => CTR => F8: 5,7,9
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # F1: 4,6 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # F3: 4,6 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # E1: 2,6 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # E3: 2,6 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # F1: 4,6 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # F3: 4,6 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # G9: 1,2 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # G9: 6,9 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # H1: 1,2 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # H2: 1,2 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # I1: 2,3 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 # I2: 2,3 => UNS
* INC # C7: 9 + E9: 5,7,9 + F8: 5,7,9 => UNS
* INC # C9: 9 # E9: 2,5 => UNS
* INC # C9: 9 # E9: 6,7 => UNS
* INC # C9: 9 # D2: 2,5 => UNS
* INC # C9: 9 # D2: 1,3,4,9 => UNS
* INC # C9: 9 => UNS
* CNT  24 HDP CHAINS /  24 HYP OPENED

Full list of HDP chains traversed for E3,F3: 8..:

* INC # E3: 8 # D6: 3,5 => UNS
* INC # E3: 8 # E6: 3,5 => UNS
* INC # E3: 8 # A4: 3,5 => UNS
* INC # E3: 8 # C4: 3,5 => UNS
* INC # E3: 8 # E1: 3,5 => UNS
* INC # E3: 8 # E2: 3,5 => UNS
* INC # E3: 8 => UNS
* INC # F3: 8 # D5: 1,5 => UNS
* INC # F3: 8 # F5: 1,5 => UNS
* INC # F3: 8 # A4: 1,5 => UNS
* INC # F3: 8 # C4: 1,5 => UNS
* INC # F3: 8 # F1: 1,5 => UNS
* INC # F3: 8 # F2: 1,5 => UNS
* INC # F3: 8 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for I4,G6: 4..:

* INC # I4: 4 # G5: 6,9 => UNS
* INC # I4: 4 # I5: 6,9 => UNS
* INC # I4: 4 # H6: 6,9 => UNS
* INC # I4: 4 # G3: 6,9 => UNS
* PRF # I4: 4 # G8: 6,9 => SOL
* STA # I4: 4 + G8: 6,9
* CNT   5 HDP CHAINS /   6 HYP OPENED