Analysis of xx-ph-00039041-12_07-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6....56...4.....5...94...7..3..7.8..2.......3....1...7.....21...8.....261.. initial

Autosolve

position: 98.7..6....56...4.....5...94...7..3..7.8..2.......3....1..87.....21...8.....261.. autosolve
Autosolve

Pair Reduction Variants

Pair Reduction Analysis

Pair Reduction Analysis

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

Pair Reduction

Pair Reduction

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

Deep Pair Reduction

Deep Pair Reduction

Time used: 0:00:46.946577

The following important HDP chains were detected:

* DIS # A2: 2,3 # F3: 1,2 => CTR => F3: 4,8
* CNT   1 HDP CHAINS / 102 HYP OPENED

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

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000010

List of important HDP chains detected for A6,A9: 8..:

* DIS # A6: 8 # F3: 1,2 => CTR => F3: 4,8
* DIS # A6: 8 + F3: 4,8 # A3: 6 => CTR => A3: 1,2
* DIS # A6: 8 + F3: 4,8 + A3: 1,2 # H1: 1,2 => CTR => H1: 5
* PRF # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 # I2: 1,2 => SOL
* STA # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 + I2: 1,2
* CNT   4 HDP CHAINS /  25 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....56...4.....5...94...7..3..7.8..2.......3....1...7.....21...8.....261.. initial
98.7..6....56...4.....5...94...7..3..7.8..2.......3....1..87.....21...8.....261.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* PAIRS (1)
B2: 2,3

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H7,I7: 2.. / H7 = 2  =>  3 pairs (_) / I7 = 2  =>  1 pairs (_)
A5,C5: 3.. / A5 = 3  =>  2 pairs (_) / C5 = 3  =>  2 pairs (_)
H1,I1: 5.. / H1 = 5  =>  2 pairs (_) / I1 = 5  =>  2 pairs (_)
E5,E6: 6.. / E5 = 6  =>  1 pairs (_) / E6 = 6  =>  1 pairs (_)
C3,C9: 7.. / C3 = 7  =>  3 pairs (_) / C9 = 7  =>  2 pairs (_)
F2,F3: 8.. / F2 = 8  =>  4 pairs (_) / F3 = 8  =>  2 pairs (_)
A9,C9: 8.. / A9 = 8  =>  1 pairs (_) / C9 = 8  =>  7 pairs (_)
F3,G3: 8.. / F3 = 8  =>  2 pairs (_) / G3 = 8  =>  4 pairs (_)
A6,A9: 8.. / A6 = 8  =>  7 pairs (_) / A9 = 8  =>  1 pairs (_)
E2,F2: 9.. / E2 = 9  =>  2 pairs (_) / F2 = 9  =>  4 pairs (_)
* DURATION: 0:00:06.152286  START: 22:28:03.871625  END: 22:28:10.023911 2020-12-17
* CP COUNT: (10)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A6,A9: 8.. / A6 = 8 ==>  0 pairs (*) / A9 = 8  =>  0 pairs (X)
* DURATION: 0:00:21.771224  START: 22:29:00.969656  END: 22:29:22.740880 2020-12-17
* REASONING A6,A9: 8..
* DIS # A6: 8 # F3: 1,2 => CTR => F3: 4,8
* DIS # A6: 8 + F3: 4,8 # A3: 6 => CTR => A3: 1,2
* DIS # A6: 8 + F3: 4,8 + A3: 1,2 # H1: 1,2 => CTR => H1: 5
* PRF # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 # I2: 1,2 => SOL
* STA # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 + I2: 1,2
* CNT   4 HDP CHAINS /  25 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

39041;12_07;GP;24;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Pair Reduction Analysis

Full list of HDP chains traversed:

* INC # A2: 2,3 => UNS
* INC # A3: 2,3 => UNS
* INC # B3: 2,3 => UNS
* INC # I2: 2,3 => UNS
* INC # I2: 1,7,8 => UNS
* CNT   5 HDP CHAINS /   5 HYP OPENED

A2. Pair Reduction

Full list of HDP chains traversed:

* INC # A2: 2,3 => UNS
* INC # A3: 2,3 => UNS
* INC # B3: 2,3 => UNS
* INC # I2: 2,3 => UNS
* INC # I2: 1,7,8 => UNS
* CNT   5 HDP CHAINS /   5 HYP OPENED

A3. Deep Pair Reduction

Full list of HDP chains traversed:

* INC # A2: 2,3 => UNS
* INC # A3: 2,3 => UNS
* INC # B3: 2,3 => UNS
* INC # I2: 2,3 => UNS
* INC # I2: 1,7,8 => UNS
* INC # A2: 2,3 # C3: 1,4 => UNS
* INC # A2: 2,3 # C3: 6,7 => UNS
* INC # A2: 2,3 # E1: 1,4 => UNS
* INC # A2: 2,3 # F1: 1,4 => UNS
* INC # A2: 2,3 # C3: 4,6 => UNS
* INC # A2: 2,3 # C3: 1,7 => UNS
* INC # A2: 2,3 # B8: 4,6 => UNS
* INC # A2: 2,3 # B8: 3,5,9 => UNS
* INC # A2: 2,3 # F2: 1,9 => UNS
* INC # A2: 2,3 # F2: 8 => UNS
* INC # A2: 2,3 # E5: 1,9 => UNS
* INC # A2: 2,3 # E6: 1,9 => UNS
* INC # A2: 2,3 # I2: 7,8 => UNS
* INC # A2: 2,3 # I2: 1 => UNS
* INC # A2: 2,3 # G6: 7,8 => UNS
* INC # A2: 2,3 # G6: 4,5,9 => UNS
* INC # A2: 2,3 # H1: 1,2 => UNS
* INC # A2: 2,3 # I1: 1,2 => UNS
* DIS # A2: 2,3 # F3: 1,2 => CTR => F3: 4,8
* INC # A2: 2,3 + F3: 4,8 # H1: 1,2 => UNS
* INC # A2: 2,3 + F3: 4,8 # I1: 1,2 => UNS
* INC # A2: 2,3 + F3: 4,8 # C3: 1,4 => UNS
* INC # A2: 2,3 + F3: 4,8 # C3: 6,7 => UNS
* INC # A2: 2,3 + F3: 4,8 # E1: 1,4 => UNS
* INC # A2: 2,3 + F3: 4,8 # F1: 1,4 => UNS
* INC # A2: 2,3 + F3: 4,8 # C3: 4,6 => UNS
* INC # A2: 2,3 + F3: 4,8 # C3: 1,7 => UNS
* INC # A2: 2,3 + F3: 4,8 # B8: 4,6 => UNS
* INC # A2: 2,3 + F3: 4,8 # B8: 3,5,9 => UNS
* INC # A2: 2,3 + F3: 4,8 # F2: 1,9 => UNS
* INC # A2: 2,3 + F3: 4,8 # F2: 8 => UNS
* INC # A2: 2,3 + F3: 4,8 # E5: 1,9 => UNS
* INC # A2: 2,3 + F3: 4,8 # E6: 1,9 => UNS
* INC # A2: 2,3 + F3: 4,8 # I2: 7,8 => UNS
* INC # A2: 2,3 + F3: 4,8 # I2: 1 => UNS
* INC # A2: 2,3 + F3: 4,8 # G6: 7,8 => UNS
* INC # A2: 2,3 + F3: 4,8 # G6: 4,5,9 => UNS
* INC # A2: 2,3 + F3: 4,8 # H1: 1,2 => UNS
* INC # A2: 2,3 + F3: 4,8 # I1: 1,2 => UNS
* INC # A2: 2,3 + F3: 4,8 => UNS
* INC # A3: 2,3 # C3: 1,4 => UNS
* INC # A3: 2,3 # C3: 6,7 => UNS
* INC # A3: 2,3 # E1: 1,4 => UNS
* INC # A3: 2,3 # F1: 1,4 => UNS
* INC # A3: 2,3 # C3: 1,7 => UNS
* INC # A3: 2,3 # C3: 4,6 => UNS
* INC # A3: 2,3 # I2: 1,7 => UNS
* INC # A3: 2,3 # I2: 2,3,8 => UNS
* INC # A3: 2,3 # I2: 2,3 => UNS
* INC # A3: 2,3 # I2: 1,7,8 => UNS
* INC # A3: 2,3 # D3: 2,3 => UNS
* INC # A3: 2,3 # D3: 4 => UNS
* INC # A3: 2,3 # C3: 4,6 => UNS
* INC # A3: 2,3 # C3: 1,7 => UNS
* INC # A3: 2,3 # B8: 4,6 => UNS
* INC # A3: 2,3 # B8: 3,5,9 => UNS
* INC # A3: 2,3 => UNS
* INC # B3: 2,3 # C3: 1,4 => UNS
* INC # B3: 2,3 # C3: 6,7 => UNS
* INC # B3: 2,3 # E1: 1,4 => UNS
* INC # B3: 2,3 # F1: 1,4 => UNS
* INC # B3: 2,3 # A3: 1,7 => UNS
* INC # B3: 2,3 # C3: 1,7 => UNS
* INC # B3: 2,3 # I2: 1,7 => UNS
* INC # B3: 2,3 # I2: 2,3,8 => UNS
* INC # B3: 2,3 # I2: 2,3 => UNS
* INC # B3: 2,3 # I2: 1,7,8 => UNS
* INC # B3: 2,3 # D3: 2,3 => UNS
* INC # B3: 2,3 # D3: 4 => UNS
* INC # B3: 2,3 => UNS
* INC # I2: 2,3 # A3: 1,7 => UNS
* INC # I2: 2,3 # C3: 1,7 => UNS
* INC # I2: 2,3 # A3: 2,3 => UNS
* INC # I2: 2,3 # B3: 2,3 => UNS
* INC # I2: 2,3 # F2: 1,9 => UNS
* INC # I2: 2,3 # F2: 8 => UNS
* INC # I2: 2,3 # E5: 1,9 => UNS
* INC # I2: 2,3 # E6: 1,9 => UNS
* INC # I2: 2,3 # G3: 7,8 => UNS
* INC # I2: 2,3 # G3: 3 => UNS
* INC # I2: 2,3 # I1: 2,3 => UNS
* INC # I2: 2,3 # I1: 1,5 => UNS
* INC # I2: 2,3 # I7: 2,3 => UNS
* INC # I2: 2,3 # I7: 4,5,6 => UNS
* INC # I2: 2,3 # H5: 5,9 => UNS
* INC # I2: 2,3 # G6: 5,9 => UNS
* INC # I2: 2,3 # H6: 5,9 => UNS
* INC # I2: 2,3 # B4: 5,9 => UNS
* INC # I2: 2,3 # D4: 5,9 => UNS
* INC # I2: 2,3 # F4: 5,9 => UNS
* INC # I2: 2,3 # G7: 5,9 => UNS
* INC # I2: 2,3 # G8: 5,9 => UNS
* INC # I2: 2,3 => UNS
* INC # I2: 1,7,8 # A2: 2,3 => UNS
* INC # I2: 1,7,8 # A3: 2,3 => UNS
* INC # I2: 1,7,8 # B3: 2,3 => UNS
* INC # I2: 1,7,8 => UNS
* CNT 102 HDP CHAINS / 102 HYP OPENED

A4. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A6,A9: 8..:

* INC # A6: 8 # E1: 1,4 => UNS
* INC # A6: 8 # F1: 1,4 => UNS
* INC # A6: 8 # A3: 1,2 => UNS
* INC # A6: 8 # A3: 6 => UNS
* INC # A6: 8 # F2: 1,2 => UNS
* INC # A6: 8 # I2: 1,2 => UNS
* INC # A6: 8 # B8: 4,6 => UNS
* INC # A6: 8 # B8: 5,9 => UNS
* INC # A6: 8 # F2: 1,9 => UNS
* INC # A6: 8 # F2: 2,8 => UNS
* INC # A6: 8 # E5: 1,9 => UNS
* INC # A6: 8 # E6: 1,9 => UNS
* INC # A6: 8 # I2: 7,8 => UNS
* INC # A6: 8 # I2: 1,2 => UNS
* INC # A6: 8 # H1: 1,2 => UNS
* INC # A6: 8 # I1: 1,2 => UNS
* INC # A6: 8 # I2: 1,2 => UNS
* INC # A6: 8 # A3: 1,2 => UNS
* DIS # A6: 8 # F3: 1,2 => CTR => F3: 4,8
* INC # A6: 8 + F3: 4,8 # A3: 1,2 => UNS
* DIS # A6: 8 + F3: 4,8 # A3: 6 => CTR => A3: 1,2
* DIS # A6: 8 + F3: 4,8 + A3: 1,2 # H1: 1,2 => CTR => H1: 5
* INC # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 # I1: 1,2 => UNS
* PRF # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 # I2: 1,2 => SOL
* STA # A6: 8 + F3: 4,8 + A3: 1,2 + H1: 5 + I2: 1,2
* CNT  24 HDP CHAINS /  25 HYP OPENED