Analysis of xx-ph-01683185-2015_08-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76....5.....9...4.....8.3..5..6...2......8.....4.1...9.7.5.....35.........1..2 initial

Autosolve

position: 98.76....5.....9...4.....8.3..5..6...2......8.....4.1...9.7.5.....35.........1..2 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

Time used: 0:00:00.000006

List of important HDP chains detected for F4,F5: 7..:

* DIS # F5: 7 # H5: 3,4 => CTR => H5: 5,9
* CNT   1 HDP CHAINS /  15 HYP OPENED

List of important HDP chains detected for G8,G9: 8..:

* DIS # G9: 8 # H9: 4,9 => CTR => H9: 3,6,7
* DIS # G9: 8 + H9: 3,6,7 # D9: 6 => CTR => D9: 4,9
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 # H4: 7,9 => CTR => H4: 2,4
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 # I4: 7,9 => CTR => I4: 4
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 # F4: 8 => CTR => F4: 7,9
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 # B9: 6,7 => CTR => B9: 3,5
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 # C9: 6,7 => CTR => C9: 3,5
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 # B8: 1 => CTR => B8: 6,7
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 + B8: 6,7 # A3: 6,7 => CTR => A3: 1,2
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 + B8: 6,7 + A3: 1,2 => CTR => G9: 3,4,7
* STA G9: 3,4,7
* CNT  10 HDP CHAINS /  22 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

98.76....5.....9...4.....8.3..5..6...2......8.....4.1...9.7.5.....35.........1..2 initial
98.76....5.....9...4.....8.3..5..6...2......8.....4.1...9.7.5.....35.........1..2 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H4,G6: 2.. / H4 = 2  =>  1 pairs (_) / G6 = 2  =>  0 pairs (_)
D2,E2: 4.. / D2 = 4  =>  0 pairs (_) / E2 = 4  =>  1 pairs (_)
E2,E9: 4.. / E2 = 4  =>  1 pairs (_) / E9 = 4  =>  0 pairs (_)
F1,F3: 5.. / F1 = 5  =>  0 pairs (_) / F3 = 5  =>  1 pairs (_)
H5,I6: 5.. / H5 = 5  =>  0 pairs (_) / I6 = 5  =>  1 pairs (_)
B9,C9: 5.. / B9 = 5  =>  0 pairs (_) / C9 = 5  =>  1 pairs (_)
F3,I3: 5.. / F3 = 5  =>  1 pairs (_) / I3 = 5  =>  0 pairs (_)
C5,H5: 5.. / C5 = 5  =>  1 pairs (_) / H5 = 5  =>  0 pairs (_)
B6,B9: 5.. / B6 = 5  =>  1 pairs (_) / B9 = 5  =>  0 pairs (_)
H1,H5: 5.. / H1 = 5  =>  1 pairs (_) / H5 = 5  =>  0 pairs (_)
F4,F5: 7.. / F4 = 7  =>  2 pairs (_) / F5 = 7  =>  1 pairs (_)
G8,G9: 8.. / G8 = 8  =>  0 pairs (_) / G9 = 8  =>  1 pairs (_)
B4,B6: 9.. / B4 = 9  =>  3 pairs (_) / B6 = 9  =>  1 pairs (_)
* DURATION: 0:00:08.968036  START: 15:43:21.814511  END: 15:43:30.782547 2020-10-24
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
B4,B6: 9.. / B4 = 9 ==>  3 pairs (_) / B6 = 9 ==>  1 pairs (_)
F4,F5: 7.. / F4 = 7 ==>  2 pairs (_) / F5 = 7 ==>  2 pairs (_)
G8,G9: 8.. / G8 = 8  =>  0 pairs (_) / G9 = 8 ==>  0 pairs (X)
H1,H5: 5.. / H1 = 5 ==>  1 pairs (_) / H5 = 5 ==>  0 pairs (_)
B6,B9: 5.. / B6 = 5 ==>  1 pairs (_) / B9 = 5 ==>  0 pairs (_)
C5,H5: 5.. / C5 = 5 ==>  1 pairs (_) / H5 = 5 ==>  0 pairs (_)
F3,I3: 5.. / F3 = 5 ==>  1 pairs (_) / I3 = 5 ==>  0 pairs (_)
B9,C9: 5.. / B9 = 5 ==>  0 pairs (_) / C9 = 5 ==>  1 pairs (_)
H5,I6: 5.. / H5 = 5 ==>  0 pairs (_) / I6 = 5 ==>  1 pairs (_)
F1,F3: 5.. / F1 = 5 ==>  0 pairs (_) / F3 = 5 ==>  1 pairs (_)
E2,E9: 4.. / E2 = 4 ==>  1 pairs (_) / E9 = 4 ==>  0 pairs (_)
D2,E2: 4.. / D2 = 4 ==>  0 pairs (_) / E2 = 4 ==>  1 pairs (_)
H4,G6: 2.. / H4 = 2 ==>  1 pairs (_) / G6 = 2 ==>  0 pairs (_)
* DURATION: 0:01:08.997708  START: 15:43:30.783170  END: 15:44:39.780878 2020-10-24
* REASONING F4,F5: 7..
* DIS # F5: 7 # H5: 3,4 => CTR => H5: 5,9
* CNT   1 HDP CHAINS /  15 HYP OPENED
* REASONING G8,G9: 8..
* DIS # G9: 8 # H9: 4,9 => CTR => H9: 3,6,7
* DIS # G9: 8 + H9: 3,6,7 # D9: 6 => CTR => D9: 4,9
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 # H4: 7,9 => CTR => H4: 2,4
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 # I4: 7,9 => CTR => I4: 4
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 # F4: 8 => CTR => F4: 7,9
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 # B9: 6,7 => CTR => B9: 3,5
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 # C9: 6,7 => CTR => C9: 3,5
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 # B8: 1 => CTR => B8: 6,7
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 + B8: 6,7 # A3: 6,7 => CTR => A3: 1,2
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 + B8: 6,7 + A3: 1,2 => CTR => G9: 3,4,7
* STA G9: 3,4,7
* CNT  10 HDP CHAINS /  22 HYP OPENED
* DCP COUNT: (13)
* CLUE FOUND

Header Info

1683185;2015_08;col;22;11.40;11.40;2.60

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for B4,B6: 9..:

* INC # B4: 9 # H4: 4,7 => UNS
* INC # B4: 9 # G5: 4,7 => UNS
* INC # B4: 9 # C4: 4,7 => UNS
* INC # B4: 9 # C4: 1,8 => UNS
* INC # B4: 9 # I8: 4,7 => UNS
* INC # B4: 9 # I8: 1,6,9 => UNS
* INC # B4: 9 => UNS
* INC # B6: 9 # C4: 1,7 => UNS
* INC # B6: 9 # A5: 1,7 => UNS
* INC # B6: 9 # C5: 1,7 => UNS
* INC # B6: 9 # B2: 1,7 => UNS
* INC # B6: 9 # B8: 1,7 => UNS
* INC # B6: 9 => UNS
* CNT  13 HDP CHAINS /  13 HYP OPENED

Full list of HDP chains traversed for F4,F5: 7..:

* INC # F4: 7 # E4: 1,9 => UNS
* INC # F4: 7 # E4: 2,8 => UNS
* INC # F4: 7 # H4: 4,9 => UNS
* INC # F4: 7 # H5: 4,9 => UNS
* INC # F4: 7 # I8: 4,9 => UNS
* INC # F4: 7 # I8: 1,6,7 => UNS
* INC # F4: 7 => UNS
* DIS # F5: 7 # H5: 3,4 => CTR => H5: 5,9
* INC # F5: 7 + H5: 5,9 # G1: 3,4 => UNS
* INC # F5: 7 + H5: 5,9 # G9: 3,4 => UNS
* INC # F5: 7 + H5: 5,9 # G1: 3,4 => UNS
* INC # F5: 7 + H5: 5,9 # G9: 3,4 => UNS
* INC # F5: 7 + H5: 5,9 # I6: 5,9 => UNS
* INC # F5: 7 + H5: 5,9 # I6: 3,7 => UNS
* INC # F5: 7 + H5: 5,9 => UNS
* CNT  15 HDP CHAINS /  15 HYP OPENED

Full list of HDP chains traversed for G8,G9: 8..:

* INC # G9: 8 # D9: 4,9 => UNS
* INC # G9: 8 # D9: 6 => UNS
* DIS # G9: 8 # H9: 4,9 => CTR => H9: 3,6,7
* INC # G9: 8 + H9: 3,6,7 # D9: 4,9 => UNS
* DIS # G9: 8 + H9: 3,6,7 # D9: 6 => CTR => D9: 4,9
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 # B6: 7,9 => UNS
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 # B6: 5,6 => UNS
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 # F4: 7,9 => UNS
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 # H4: 7,9 => CTR => H4: 2,4
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 # I4: 7,9 => CTR => I4: 4
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 # F4: 7,9 => UNS
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 # F4: 8 => CTR => F4: 7,9
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 # B6: 7,9 => UNS
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 # B6: 5,6 => UNS
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 # B8: 6,7 => UNS
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 # B9: 6,7 => CTR => B9: 3,5
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 # C9: 6,7 => CTR => C9: 3,5
* INC # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 # B8: 6,7 => UNS
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 # B8: 1 => CTR => B8: 6,7
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 + B8: 6,7 # A3: 6,7 => CTR => A3: 1,2
* DIS # G9: 8 + H9: 3,6,7 + D9: 4,9 + H4: 2,4 + I4: 4 + F4: 7,9 + B9: 3,5 + C9: 3,5 + B8: 6,7 + A3: 1,2 => CTR => G9: 3,4,7
* INC G9: 3,4,7 # G8: 8 => UNS
* STA G9: 3,4,7
* CNT  22 HDP CHAINS /  22 HYP OPENED

Full list of HDP chains traversed for H1,H5: 5..:

* INC # H1: 5 # E2: 2,3 => UNS
* INC # H1: 5 # F2: 2,3 => UNS
* INC # H1: 5 # E3: 2,3 => UNS
* INC # H1: 5 # C1: 2,3 => UNS
* INC # H1: 5 # G1: 2,3 => UNS
* INC # H1: 5 => UNS
* INC # H5: 5 => UNS
* CNT   7 HDP CHAINS /   7 HYP OPENED

Full list of HDP chains traversed for B6,B9: 5..:

* INC # B6: 5 # H4: 4,7 => UNS
* INC # B6: 5 # G5: 4,7 => UNS
* INC # B6: 5 # C4: 4,7 => UNS
* INC # B6: 5 # C4: 1,8 => UNS
* INC # B6: 5 # I8: 4,7 => UNS
* INC # B6: 5 # I8: 1,6 => UNS
* INC # B6: 5 => UNS
* INC # B9: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for C5,H5: 5..:

* INC # C5: 5 # E2: 2,3 => UNS
* INC # C5: 5 # F2: 2,3 => UNS
* INC # C5: 5 # E3: 2,3 => UNS
* INC # C5: 5 # C1: 2,3 => UNS
* INC # C5: 5 # G1: 2,3 => UNS
* INC # C5: 5 => UNS
* INC # H5: 5 => UNS
* CNT   7 HDP CHAINS /   7 HYP OPENED

Full list of HDP chains traversed for F3,I3: 5..:

* INC # F3: 5 # E2: 2,3 => UNS
* INC # F3: 5 # F2: 2,3 => UNS
* INC # F3: 5 # E3: 2,3 => UNS
* INC # F3: 5 # C1: 2,3 => UNS
* INC # F3: 5 # G1: 2,3 => UNS
* INC # F3: 5 # H1: 2,3 => UNS
* INC # F3: 5 => UNS
* INC # I3: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for B9,C9: 5..:

* INC # C9: 5 # H4: 4,7 => UNS
* INC # C9: 5 # G5: 4,7 => UNS
* INC # C9: 5 # C4: 4,7 => UNS
* INC # C9: 5 # C4: 1,8 => UNS
* INC # C9: 5 # I8: 4,7 => UNS
* INC # C9: 5 # I8: 1,6 => UNS
* INC # C9: 5 => UNS
* INC # B9: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for H5,I6: 5..:

* INC # I6: 5 # E2: 2,3 => UNS
* INC # I6: 5 # F2: 2,3 => UNS
* INC # I6: 5 # E3: 2,3 => UNS
* INC # I6: 5 # C1: 2,3 => UNS
* INC # I6: 5 # G1: 2,3 => UNS
* INC # I6: 5 => UNS
* INC # H5: 5 => UNS
* CNT   7 HDP CHAINS /   7 HYP OPENED

Full list of HDP chains traversed for F1,F3: 5..:

* INC # F3: 5 # E2: 2,3 => UNS
* INC # F3: 5 # F2: 2,3 => UNS
* INC # F3: 5 # E3: 2,3 => UNS
* INC # F3: 5 # C1: 2,3 => UNS
* INC # F3: 5 # G1: 2,3 => UNS
* INC # F3: 5 # H1: 2,3 => UNS
* INC # F3: 5 => UNS
* INC # F1: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for E2,E9: 4..:

* INC # E2: 4 # F8: 8,9 => UNS
* INC # E2: 4 # D9: 8,9 => UNS
* INC # E2: 4 # E4: 8,9 => UNS
* INC # E2: 4 # E6: 8,9 => UNS
* INC # E2: 4 => UNS
* INC # E9: 4 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for D2,E2: 4..:

* INC # E2: 4 # F8: 8,9 => UNS
* INC # E2: 4 # D9: 8,9 => UNS
* INC # E2: 4 # E4: 8,9 => UNS
* INC # E2: 4 # E6: 8,9 => UNS
* INC # E2: 4 => UNS
* INC # D2: 4 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for H4,G6: 2..:

* INC # H4: 2 # G5: 3,7 => UNS
* INC # H4: 2 # H5: 3,7 => UNS
* INC # H4: 2 # I6: 3,7 => UNS
* INC # H4: 2 # G3: 3,7 => UNS
* INC # H4: 2 # G9: 3,7 => UNS
* INC # H4: 2 => UNS
* INC # G6: 2 => UNS
* CNT   7 HDP CHAINS /   7 HYP OPENED