Analysis of xx-ph-00034434-12_05-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 9..8..7...8.....6...5.4....7......9..3.6..8.......2..1.6.3...8...2.1.........5..4 initial

Autosolve

position: 9..8..7...8.....6...5.4...87......9..3.6..8.......2..1.6.3...8...2.1.........5..4 autosolve
Autosolve

Pair Reduction Variants

Deep Pair Reduction

Deep Pair Reduction

Time used: 0:00:00.162012

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: 0:00:00.000011

List of important HDP chains detected for F7,D8: 4..:

* DIS # F7: 4 # D2: 7,9 => CTR => D2: 1,2,5
* CNT   1 HDP CHAINS /  40 HYP OPENED

List of important HDP chains detected for C2,B3: 7..:

* DIS # C2: 7 # A3: 1,2 => CTR => A3: 3,6
* DIS # C2: 7 + A3: 3,6 # D3: 1,2 => CTR => D3: 7,9
* CNT   2 HDP CHAINS /  35 HYP OPENED

List of important HDP chains detected for F4,F8: 8..:

* DIS # F4: 8 => CTR => F4: 1,3,4
* STA F4: 1,3,4
* CNT   1 HDP CHAINS /   2 HYP OPENED

List of important HDP chains detected for A8,F8: 8..:

* DIS # A8: 8 => CTR => A8: 3,4,5
* STA A8: 3,4,5
* CNT   1 HDP CHAINS /   2 HYP OPENED

List of important HDP chains detected for F8,E9: 8..:

* DIS # E9: 8 => CTR => E9: 6
* STA E9: 6
* CNT   1 HDP CHAINS /   2 HYP OPENED

List of important HDP chains detected for E1,E9: 6..:

* DIS # E1: 6 => CTR => E1: 2,3,5
* STA E1: 2,3,5
* CNT   1 HDP CHAINS /   2 HYP OPENED

List of important HDP chains detected for E9,G9: 6..:

* DIS # G9: 6 => CTR => G9: 1,2,3,9
* STA G9: 1,2,3,9
* CNT   1 HDP CHAINS /   2 HYP OPENED

List of important HDP chains detected for F8,E9: 6..:

* DIS # F8: 6 => CTR => F8: 8
* STA F8: 8
* CNT   1 HDP CHAINS /   2 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

9..8..7...8.....6...5.4....7......9..3.6..8.......2..1.6.3...8...2.1.........5..4 initial
9..8..7...8.....6...5.4...87......9..3.6..8.......2..1.6.3...8...2.1.........5..4 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* PAIRS (2)
F8: 6,8
E9: 6,8

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
B4,A5: 2.. / B4 = 2  =>  4 pairs (_) / A5 = 2  =>  3 pairs (_)
E7,D9: 2.. / E7 = 2  =>  3 pairs (_) / D9 = 2  =>  3 pairs (_)
H1,G2: 4.. / H1 = 4  =>  3 pairs (_) / G2 = 4  =>  2 pairs (_)
F7,D8: 4.. / F7 = 4  =>  4 pairs (_) / D8 = 4  =>  4 pairs (_)
C1,A3: 6.. / C1 = 6  =>  1 pairs (_) / A3 = 6  =>  2 pairs (_)
F8,E9: 6.. / F8 = 6  =>  0 pairs (X) / E9 = 6  =>  0 pairs (_)
A3,F3: 6.. / A3 = 6  =>  2 pairs (_) / F3 = 6  =>  1 pairs (_)
E9,G9: 6.. / E9 = 6  =>  0 pairs (_) / G9 = 6  =>  0 pairs (X)
A3,A6: 6.. / A3 = 6  =>  2 pairs (_) / A6 = 6  =>  1 pairs (_)
E1,E9: 6.. / E1 = 6  =>  0 pairs (X) / E9 = 6  =>  0 pairs (_)
I4,I8: 6.. / I4 = 6  =>  2 pairs (_) / I8 = 6  =>  0 pairs (_)
C2,B3: 7.. / C2 = 7  =>  3 pairs (_) / B3 = 7  =>  3 pairs (_)
F8,E9: 8.. / F8 = 8  =>  0 pairs (_) / E9 = 8  =>  0 pairs (X)
A8,F8: 8.. / A8 = 8  =>  0 pairs (X) / F8 = 8  =>  0 pairs (_)
F4,F8: 8.. / F4 = 8  =>  0 pairs (X) / F8 = 8  =>  0 pairs (_)
* DURATION: 0:00:09.482050  START: 13:14:33.858329  END: 13:14:43.340379 2020-12-14
* CP COUNT: (15)
* CLUE FOUND

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F7,D8: 4.. / F7 = 4 ==>  4 pairs (_) / D8 = 4 ==>  4 pairs (_)
B4,A5: 2.. / B4 = 2 ==>  4 pairs (_) / A5 = 2 ==>  3 pairs (_)
C2,B3: 7.. / C2 = 7 ==>  5 pairs (_) / B3 = 7 ==>  3 pairs (_)
E7,D9: 2.. / E7 = 2 ==>  3 pairs (_) / D9 = 2 ==>  3 pairs (_)
H1,G2: 4.. / H1 = 4 ==>  3 pairs (_) / G2 = 4 ==>  2 pairs (_)
A3,A6: 6.. / A3 = 6 ==>  2 pairs (_) / A6 = 6 ==>  1 pairs (_)
A3,F3: 6.. / A3 = 6 ==>  2 pairs (_) / F3 = 6 ==>  1 pairs (_)
C1,A3: 6.. / C1 = 6 ==>  1 pairs (_) / A3 = 6 ==>  2 pairs (_)
I4,I8: 6.. / I4 = 6 ==>  2 pairs (_) / I8 = 6 ==>  0 pairs (_)
F4,F8: 8.. / F4 = 8  =>  0 pairs (X) / F8 = 8  =>  0 pairs (_)
A8,F8: 8.. / A8 = 8  =>  0 pairs (X) / F8 = 8  =>  0 pairs (_)
F8,E9: 8.. / F8 = 8 ==>  0 pairs (_) / E9 = 8  =>  0 pairs (X)
E1,E9: 6.. / E1 = 6  =>  0 pairs (X) / E9 = 6  =>  0 pairs (_)
E9,G9: 6.. / E9 = 6 ==>  0 pairs (_) / G9 = 6  =>  0 pairs (X)
F8,E9: 6.. / F8 = 6  =>  0 pairs (X) / E9 = 6  =>  0 pairs (_)
* DURATION: 0:01:12.546459  START: 13:14:44.017790  END: 13:15:56.564249 2020-12-14
* REASONING F7,D8: 4..
* DIS # F7: 4 # D2: 7,9 => CTR => D2: 1,2,5
* CNT   1 HDP CHAINS /  40 HYP OPENED
* REASONING C2,B3: 7..
* DIS # C2: 7 # A3: 1,2 => CTR => A3: 3,6
* DIS # C2: 7 + A3: 3,6 # D3: 1,2 => CTR => D3: 7,9
* CNT   2 HDP CHAINS /  35 HYP OPENED
* REASONING F4,F8: 8..
* DIS # F4: 8 => CTR => F4: 1,3,4
* STA F4: 1,3,4
* CNT   1 HDP CHAINS /   2 HYP OPENED
* REASONING A8,F8: 8..
* DIS # A8: 8 => CTR => A8: 3,4,5
* STA A8: 3,4,5
* CNT   1 HDP CHAINS /   2 HYP OPENED
* REASONING F8,E9: 8..
* DIS # E9: 8 => CTR => E9: 6
* STA E9: 6
* CNT   1 HDP CHAINS /   2 HYP OPENED
* REASONING E1,E9: 6..
* DIS # E1: 6 => CTR => E1: 2,3,5
* STA E1: 2,3,5
* CNT   1 HDP CHAINS /   2 HYP OPENED
* REASONING E9,G9: 6..
* DIS # G9: 6 => CTR => G9: 1,2,3,9
* STA G9: 1,2,3,9
* CNT   1 HDP CHAINS /   2 HYP OPENED
* REASONING F8,E9: 6..
* DIS # F8: 6 => CTR => F8: 8
* STA F8: 8
* CNT   1 HDP CHAINS /   2 HYP OPENED
* DCP COUNT: (15)
* CLUE FOUND

Header Info

34434;12_05;GP;21;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F7,D8: 4..:

* INC # F7: 4 # G7: 1,5 => UNS
* INC # F7: 4 # G7: 2,9 => UNS
* INC # F7: 4 # A5: 1,5 => UNS
* INC # F7: 4 # A5: 2,4 => UNS
* INC # F7: 4 # E7: 7,9 => UNS
* INC # F7: 4 # D9: 7,9 => UNS
* INC # F7: 4 # B8: 7,9 => UNS
* INC # F7: 4 # I8: 7,9 => UNS
* DIS # F7: 4 # D2: 7,9 => CTR => D2: 1,2,5
* INC # F7: 4 + D2: 1,2,5 # D3: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D6: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # E7: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D9: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # B8: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # I8: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D3: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D6: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # G7: 1,5 => UNS
* INC # F7: 4 + D2: 1,2,5 # G7: 2,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # A5: 1,5 => UNS
* INC # F7: 4 + D2: 1,2,5 # A5: 2,4 => UNS
* INC # F7: 4 + D2: 1,2,5 # E7: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D9: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # B8: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # I8: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D3: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 # D6: 7,9 => UNS
* INC # F7: 4 + D2: 1,2,5 => UNS
* INC # D8: 4 # B4: 1,5 => UNS
* INC # D8: 4 # B4: 2,4 => UNS
* INC # D8: 4 # D2: 1,5 => UNS
* INC # D8: 4 # D2: 2,7,9 => UNS
* INC # D8: 4 # E7: 7,9 => UNS
* INC # D8: 4 # D9: 7,9 => UNS
* INC # D8: 4 # C7: 7,9 => UNS
* INC # D8: 4 # I7: 7,9 => UNS
* INC # D8: 4 # F2: 7,9 => UNS
* INC # D8: 4 # F3: 7,9 => UNS
* INC # D8: 4 # F5: 7,9 => UNS
* INC # D8: 4 => UNS
* CNT  40 HDP CHAINS /  40 HYP OPENED

Full list of HDP chains traversed for B4,A5: 2..:

* INC # B4: 2 # C1: 1,4 => UNS
* INC # B4: 2 # A2: 1,4 => UNS
* INC # B4: 2 # C2: 1,4 => UNS
* INC # B4: 2 # H1: 1,4 => UNS
* INC # B4: 2 # H1: 2,3,5 => UNS
* INC # B4: 2 # C2: 1,7 => UNS
* INC # B4: 2 # C2: 3,4 => UNS
* INC # B4: 2 # D3: 1,7 => UNS
* INC # B4: 2 # F3: 1,7 => UNS
* INC # B4: 2 # B9: 1,7 => UNS
* INC # B4: 2 # B9: 9 => UNS
* INC # B4: 2 => UNS
* INC # A5: 2 # H5: 5,7 => UNS
* INC # A5: 2 # H6: 5,7 => UNS
* INC # A5: 2 # E5: 5,7 => UNS
* INC # A5: 2 # E5: 9 => UNS
* INC # A5: 2 # I7: 5,7 => UNS
* INC # A5: 2 # I8: 5,7 => UNS
* INC # A5: 2 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for C2,B3: 7..:

* INC # C2: 7 # B1: 1,2 => UNS
* INC # C2: 7 # A2: 1,2 => UNS
* DIS # C2: 7 # A3: 1,2 => CTR => A3: 3,6
* DIS # C2: 7 + A3: 3,6 # D3: 1,2 => CTR => D3: 7,9
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # G3: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # H3: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B4: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B4: 4,5 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B1: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # A2: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # G3: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # H3: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B4: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B4: 4,5 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # C1: 3,6 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # C1: 1,4 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # F3: 3,6 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # F3: 1,7,9 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B1: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # A2: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # G3: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # H3: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B4: 1,2 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # B4: 4,5 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # F3: 7,9 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # F3: 1,3,6 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # D6: 7,9 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # D8: 7,9 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 # D9: 7,9 => UNS
* INC # C2: 7 + A3: 3,6 + D3: 7,9 => UNS
* INC # B3: 7 # C7: 1,9 => UNS
* INC # B3: 7 # C9: 1,9 => UNS
* INC # B3: 7 # G9: 1,9 => UNS
* INC # B3: 7 # G9: 2,3,6 => UNS
* INC # B3: 7 => UNS
* CNT  35 HDP CHAINS /  35 HYP OPENED

Full list of HDP chains traversed for E7,D9: 2..:

* INC # E7: 2 # F7: 7,9 => UNS
* INC # E7: 2 # D8: 7,9 => UNS
* INC # E7: 2 # B9: 7,9 => UNS
* INC # E7: 2 # C9: 7,9 => UNS
* INC # E7: 2 # D2: 7,9 => UNS
* INC # E7: 2 # D3: 7,9 => UNS
* INC # E7: 2 # D6: 7,9 => UNS
* INC # E7: 2 => UNS
* INC # D9: 2 # F7: 7,9 => UNS
* INC # D9: 2 # D8: 7,9 => UNS
* INC # D9: 2 # C7: 7,9 => UNS
* INC # D9: 2 # I7: 7,9 => UNS
* INC # D9: 2 # E2: 7,9 => UNS
* INC # D9: 2 # E5: 7,9 => UNS
* INC # D9: 2 # E6: 7,9 => UNS
* INC # D9: 2 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for H1,G2: 4..:

* INC # H1: 4 # A2: 1,2 => UNS
* INC # H1: 4 # A3: 1,2 => UNS
* INC # H1: 4 # B3: 1,2 => UNS
* INC # H1: 4 # B4: 1,2 => UNS
* INC # H1: 4 # B4: 4,5 => UNS
* INC # H1: 4 => UNS
* INC # G2: 4 => UNS
* CNT   7 HDP CHAINS /   7 HYP OPENED

Full list of HDP chains traversed for A3,A6: 6..:

* INC # A3: 6 => UNS
* INC # A6: 6 # F2: 1,3 => UNS
* INC # A6: 6 # F2: 7,9 => UNS
* INC # A6: 6 # H1: 1,3 => UNS
* INC # A6: 6 # H1: 2,4,5 => UNS
* INC # A6: 6 # F4: 1,3 => UNS
* INC # A6: 6 # F4: 4 => UNS
* INC # A6: 6 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for A3,F3: 6..:

* INC # A3: 6 => UNS
* INC # F3: 6 # F2: 1,3 => UNS
* INC # F3: 6 # F2: 7,9 => UNS
* INC # F3: 6 # H1: 1,3 => UNS
* INC # F3: 6 # H1: 2,4,5 => UNS
* INC # F3: 6 # F4: 1,3 => UNS
* INC # F3: 6 # F4: 4 => UNS
* INC # F3: 6 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for C1,A3: 6..:

* INC # A3: 6 => UNS
* INC # C1: 6 # F2: 1,3 => UNS
* INC # C1: 6 # F2: 7,9 => UNS
* INC # C1: 6 # H1: 1,3 => UNS
* INC # C1: 6 # H1: 2,4,5 => UNS
* INC # C1: 6 # F4: 1,3 => UNS
* INC # C1: 6 # F4: 4 => UNS
* INC # C1: 6 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for I4,I8: 6..:

* INC # I4: 6 => UNS
* INC # I8: 6 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for F4,F8: 8..:

* DIS # F4: 8 => CTR => F4: 1,3,4
* INC F4: 1,3,4 # F8: 8 => UNS
* STA F4: 1,3,4
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for A8,F8: 8..:

* DIS # A8: 8 => CTR => A8: 3,4,5
* INC A8: 3,4,5 # F8: 8 => UNS
* STA A8: 3,4,5
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for F8,E9: 8..:

* INC # F8: 8 => UNS
* DIS # E9: 8 => CTR => E9: 6
* STA E9: 6
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for E1,E9: 6..:

* DIS # E1: 6 => CTR => E1: 2,3,5
* INC E1: 2,3,5 # E9: 6 => UNS
* STA E1: 2,3,5
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for E9,G9: 6..:

* INC # E9: 6 => UNS
* DIS # G9: 6 => CTR => G9: 1,2,3,9
* STA G9: 1,2,3,9
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for F8,E9: 6..:

* DIS # F8: 6 => CTR => F8: 8
* INC F8: 8 # E9: 6 => UNS
* STA F8: 8
* CNT   2 HDP CHAINS /   2 HYP OPENED