Analysis of xx-ph-01115289-13_09-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.....8....7....95.4..3......89..7.......2.1...95..6......4..2......1..3 initial

Autosolve

position: 98.7.....6.....8....7....95.4..3......89..7...9...2.1...95..6......4..2......1..3 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000009

List of important HDP chains detected for F5,D6: 4..:

* DIS # F5: 4 # D4: 6,8 => CTR => D4: 1
* DIS # F5: 4 + D4: 1 # D3: 6,8 => CTR => D3: 2,3,4
* DIS # F5: 4 + D4: 1 + D3: 2,3,4 # B5: 5,6 => CTR => B5: 1,2,3
* CNT   3 HDP CHAINS /  89 HYP OPENED

List of important HDP chains detected for H1,I1: 6..:

* PRF # I1: 6 # H2: 3,4 => SOL
* STA # I1: 6 + H2: 3,4
* CNT   1 HDP CHAINS /   3 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....7....95.4..3......89..7.......2.1...95..6......4..2......1..3 initial
98.7.....6.....8....7....95.4..3......89..7...9...2.1...95..6......4..2......1..3 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D4,E5: 1.. / D4 = 1  =>  1 pairs (_) / E5 = 1  =>  2 pairs (_)
H5,G6: 3.. / H5 = 3  =>  3 pairs (_) / G6 = 3  =>  2 pairs (_)
F5,D6: 4.. / F5 = 4  =>  3 pairs (_) / D6 = 4  =>  3 pairs (_)
H1,I1: 6.. / H1 = 6  =>  1 pairs (_) / I1 = 6  =>  3 pairs (_)
H2,I2: 7.. / H2 = 7  =>  1 pairs (_) / I2 = 7  =>  1 pairs (_)
A4,A6: 7.. / A4 = 7  =>  2 pairs (_) / A6 = 7  =>  1 pairs (_)
F4,E6: 7.. / F4 = 7  =>  1 pairs (_) / E6 = 7  =>  2 pairs (_)
A4,F4: 7.. / A4 = 7  =>  2 pairs (_) / F4 = 7  =>  1 pairs (_)
A6,E6: 7.. / A6 = 7  =>  1 pairs (_) / E6 = 7  =>  2 pairs (_)
E2,F2: 9.. / E2 = 9  =>  2 pairs (_) / F2 = 9  =>  1 pairs (_)
G4,I4: 9.. / G4 = 9  =>  2 pairs (_) / I4 = 9  =>  1 pairs (_)
F8,E9: 9.. / F8 = 9  =>  2 pairs (_) / E9 = 9  =>  1 pairs (_)
E9,G9: 9.. / E9 = 9  =>  1 pairs (_) / G9 = 9  =>  2 pairs (_)
E2,E9: 9.. / E2 = 9  =>  2 pairs (_) / E9 = 9  =>  1 pairs (_)
F2,F8: 9.. / F2 = 9  =>  1 pairs (_) / F8 = 9  =>  2 pairs (_)
I4,I8: 9.. / I4 = 9  =>  1 pairs (_) / I8 = 9  =>  2 pairs (_)
* DURATION: 0:00:11.857810  START: 17:49:47.074261  END: 17:49:58.932071 2020-10-31
* CP COUNT: (16)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F5,D6: 4.. / F5 = 4 ==>  6 pairs (_) / D6 = 4 ==>  3 pairs (_)
H5,G6: 3.. / H5 = 3 ==>  3 pairs (_) / G6 = 3 ==>  2 pairs (_)
H1,I1: 6.. / H1 = 6  =>  0 pairs (X) / I1 = 6 ==>  0 pairs (*)
* DURATION: 0:01:08.787653  START: 17:49:58.932703  END: 17:51:07.720356 2020-10-31
* REASONING F5,D6: 4..
* DIS # F5: 4 # D4: 6,8 => CTR => D4: 1
* DIS # F5: 4 + D4: 1 # D3: 6,8 => CTR => D3: 2,3,4
* DIS # F5: 4 + D4: 1 + D3: 2,3,4 # B5: 5,6 => CTR => B5: 1,2,3
* CNT   3 HDP CHAINS /  89 HYP OPENED
* REASONING H1,I1: 6..
* PRF # I1: 6 # H2: 3,4 => SOL
* STA # I1: 6 + H2: 3,4
* CNT   1 HDP CHAINS /   3 HYP OPENED
* DCP COUNT: (3)
* SOLUTION FOUND

Header Info

1115289;13_09;GP;22;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F5,D6: 4..:

* INC # F5: 4 # F2: 3,5 => UNS
* INC # F5: 4 # F2: 9 => UNS
* INC # F5: 4 # C1: 3,5 => UNS
* INC # F5: 4 # C1: 1,2,4 => UNS
* DIS # F5: 4 # D4: 6,8 => CTR => D4: 1
* INC # F5: 4 + D4: 1 # F4: 6,8 => UNS
* INC # F5: 4 + D4: 1 # E6: 6,8 => UNS
* INC # F5: 4 + D4: 1 # I6: 6,8 => UNS
* INC # F5: 4 + D4: 1 # I6: 4 => UNS
* DIS # F5: 4 + D4: 1 # D3: 6,8 => CTR => D3: 2,3,4
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # D8: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # D9: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # F4: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # E6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # I6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # I6: 4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # D8: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # D9: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # I4: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # I4: 8,9 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # B5: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # B5: 1,3,5 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # I1: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # I1: 1,4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # F2: 3,5 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # F2: 9 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # C1: 3,5 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # C1: 1,2,4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # E6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # E9: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # F4: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # F8: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # F4: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 # E6: 5,6 => UNS
* DIS # F5: 4 + D4: 1 + D3: 2,3,4 # B5: 5,6 => CTR => B5: 1,2,3
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 3 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F4: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # E6: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 3 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F4: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # E6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I6: 4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # D8: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # D9: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I4: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I4: 8,9 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I1: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I1: 1,4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F2: 3,5 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F2: 9 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # C1: 3,5 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # C1: 1,2,4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # E6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # E9: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F4: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F8: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F4: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # E6: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 5,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # H5: 3 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # F4: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # E6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I6: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I6: 4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # D8: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # D9: 6,8 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I4: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I4: 8,9 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I1: 2,6 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 # I1: 1,4 => UNS
* INC # F5: 4 + D4: 1 + D3: 2,3,4 + B5: 1,2,3 => UNS
* INC # D6: 4 # F4: 5,6 => UNS
* INC # D6: 4 # E5: 5,6 => UNS
* INC # D6: 4 # E6: 5,6 => UNS
* INC # D6: 4 # B5: 5,6 => UNS
* INC # D6: 4 # H5: 5,6 => UNS
* INC # D6: 4 # H5: 3,5 => UNS
* INC # D6: 4 # H5: 4,6 => UNS
* INC # D6: 4 # A6: 3,5 => UNS
* INC # D6: 4 # C6: 3,5 => UNS
* INC # D6: 4 # H4: 6,8 => UNS
* INC # D6: 4 # I4: 6,8 => UNS
* INC # D6: 4 # E6: 6,8 => UNS
* INC # D6: 4 # E6: 5,7 => UNS
* INC # D6: 4 => UNS
* CNT  89 HDP CHAINS /  89 HYP OPENED

Full list of HDP chains traversed for H5,G6: 3..:

* INC # H5: 3 # I1: 4,6 => UNS
* INC # H5: 3 # I1: 1,2 => UNS
* INC # H5: 3 # I2: 4,7 => UNS
* INC # H5: 3 # I2: 1,2 => UNS
* INC # H5: 3 # H7: 4,7 => UNS
* INC # H5: 3 # H9: 4,7 => UNS
* INC # H5: 3 # G9: 4,5 => UNS
* INC # H5: 3 # G9: 9 => UNS
* INC # H5: 3 => UNS
* INC # G6: 3 # A4: 5,7 => UNS
* INC # G6: 3 # A4: 1,2 => UNS
* INC # G6: 3 # E6: 5,7 => UNS
* INC # G6: 3 # E6: 6,8 => UNS
* INC # G6: 3 # C4: 5,6 => UNS
* INC # G6: 3 # B5: 5,6 => UNS
* INC # G6: 3 # E6: 5,6 => UNS
* INC # G6: 3 # E6: 7,8 => UNS
* INC # G6: 3 # C8: 5,6 => UNS
* INC # G6: 3 # C9: 5,6 => UNS
* INC # G6: 3 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for H1,I1: 6..:

* INC # I1: 6 # G1: 3,4 => UNS
* PRF # I1: 6 # H2: 3,4 => SOL
* STA # I1: 6 + H2: 3,4
* CNT   2 HDP CHAINS /   3 HYP OPENED