Analysis of xx-ph-00039297-12_07-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..5...4......3..6.8.3....5.6...64....2....6.1...3...9.5...5.2...1......7.. initial

Autosolve

position: 98.7..6..56..4......3..6.8.3....5.6...64....2....6.1...3...9.5...5.2...1......7.. 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: 0:00:00.000007

List of important HDP chains detected for E7,F8: 7..:

* DIS # F8: 7 # D9: 1,8 => CTR => D9: 3,5,6
* DIS # F8: 7 + D9: 3,5,6 # E9: 1,8 => CTR => E9: 3,5
* CNT   2 HDP CHAINS /  25 HYP OPENED

List of important HDP chains detected for F8,F9: 4..:

* PRF # F8: 4 # H9: 3,9 => SOL
* STA # F8: 4 + H9: 3,9
* 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..5...4......3..6.8.3....5.6...64....2....6.1...3...9.5...5.2...1......7.. initial
98.7..6..56..4......3..6.8.3....5.6...64....2....6.1...3...9.5...5.2...1......7.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H1,H2: 1.. / H1 = 1  =>  3 pairs (_) / H2 = 1  =>  1 pairs (_)
G7,H9: 2.. / G7 = 2  =>  3 pairs (_) / H9 = 2  =>  1 pairs (_)
F8,F9: 4.. / F8 = 4  =>  2 pairs (_) / F9 = 4  =>  0 pairs (_)
B5,B6: 5.. / B5 = 5  =>  2 pairs (_) / B6 = 5  =>  0 pairs (_)
G5,I6: 5.. / G5 = 5  =>  0 pairs (_) / I6 = 5  =>  2 pairs (_)
D9,E9: 5.. / D9 = 5  =>  0 pairs (_) / E9 = 5  =>  2 pairs (_)
E1,I1: 5.. / E1 = 5  =>  2 pairs (_) / I1 = 5  =>  1 pairs (_)
B5,G5: 5.. / B5 = 5  =>  2 pairs (_) / G5 = 5  =>  0 pairs (_)
B6,I6: 5.. / B6 = 5  =>  0 pairs (_) / I6 = 5  =>  2 pairs (_)
D3,D9: 5.. / D3 = 5  =>  2 pairs (_) / D9 = 5  =>  0 pairs (_)
G3,G5: 5.. / G3 = 5  =>  2 pairs (_) / G5 = 5  =>  0 pairs (_)
I7,I9: 6.. / I7 = 6  =>  1 pairs (_) / I9 = 6  =>  1 pairs (_)
A8,D8: 6.. / A8 = 6  =>  1 pairs (_) / D8 = 6  =>  1 pairs (_)
E7,F8: 7.. / E7 = 7  =>  0 pairs (_) / F8 = 7  =>  2 pairs (_)
D2,F2: 8.. / D2 = 8  =>  2 pairs (_) / F2 = 8  =>  0 pairs (_)
* DURATION: 0:00:09.416199  START: 01:14:50.791805  END: 01:15:00.208004 2020-12-18
* CP COUNT: (15)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
G7,H9: 2.. / G7 = 2 ==>  3 pairs (_) / H9 = 2 ==>  1 pairs (_)
H1,H2: 1.. / H1 = 1 ==>  3 pairs (_) / H2 = 1 ==>  1 pairs (_)
E1,I1: 5.. / E1 = 5 ==>  2 pairs (_) / I1 = 5 ==>  1 pairs (_)
D2,F2: 8.. / D2 = 8 ==>  2 pairs (_) / F2 = 8 ==>  0 pairs (_)
E7,F8: 7.. / E7 = 7 ==>  0 pairs (_) / F8 = 7 ==>  3 pairs (_)
G3,G5: 5.. / G3 = 5 ==>  2 pairs (_) / G5 = 5 ==>  0 pairs (_)
D3,D9: 5.. / D3 = 5 ==>  2 pairs (_) / D9 = 5 ==>  0 pairs (_)
B6,I6: 5.. / B6 = 5 ==>  0 pairs (_) / I6 = 5 ==>  2 pairs (_)
B5,G5: 5.. / B5 = 5 ==>  2 pairs (_) / G5 = 5 ==>  0 pairs (_)
D9,E9: 5.. / D9 = 5 ==>  0 pairs (_) / E9 = 5 ==>  2 pairs (_)
G5,I6: 5.. / G5 = 5 ==>  0 pairs (_) / I6 = 5 ==>  2 pairs (_)
B5,B6: 5.. / B5 = 5 ==>  2 pairs (_) / B6 = 5 ==>  0 pairs (_)
F8,F9: 4.. / F8 = 4 ==>  0 pairs (*) / F9 = 4  =>  0 pairs (X)
* DURATION: 0:01:27.109368  START: 01:15:00.208791  END: 01:16:27.318159 2020-12-18
* REASONING E7,F8: 7..
* DIS # F8: 7 # D9: 1,8 => CTR => D9: 3,5,6
* DIS # F8: 7 + D9: 3,5,6 # E9: 1,8 => CTR => E9: 3,5
* CNT   2 HDP CHAINS /  25 HYP OPENED
* REASONING F8,F9: 4..
* PRF # F8: 4 # H9: 3,9 => SOL
* STA # F8: 4 + H9: 3,9
* CNT   1 HDP CHAINS /   6 HYP OPENED
* DCP COUNT: (13)
* SOLUTION FOUND

Header Info

39297;12_07;GP;24;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for G7,H9: 2..:

* INC # G7: 2 # C1: 1,2 => UNS
* INC # G7: 2 # F1: 1,2 => UNS
* INC # G7: 2 # I2: 3,9 => UNS
* INC # G7: 2 # I2: 7 => UNS
* INC # G7: 2 # D2: 3,9 => UNS
* INC # G7: 2 # D2: 1,2,8 => UNS
* INC # G7: 2 # G5: 3,9 => UNS
* INC # G7: 2 # G8: 3,9 => UNS
* INC # G7: 2 # C2: 1,2 => UNS
* INC # G7: 2 # D2: 1,2 => UNS
* INC # G7: 2 # F2: 1,2 => UNS
* INC # G7: 2 => UNS
* INC # H9: 2 # I7: 4,8 => UNS
* INC # H9: 2 # G8: 4,8 => UNS
* INC # H9: 2 # I9: 4,8 => UNS
* INC # H9: 2 # A7: 4,8 => UNS
* INC # H9: 2 # C7: 4,8 => UNS
* INC # H9: 2 # G4: 4,8 => UNS
* INC # H9: 2 # G4: 9 => UNS
* INC # H9: 2 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for H1,H2: 1..:

* INC # H1: 1 # A3: 2,4 => UNS
* INC # H1: 1 # B3: 2,4 => UNS
* INC # H1: 1 # C4: 2,4 => UNS
* INC # H1: 1 # C6: 2,4 => UNS
* INC # H1: 1 # C7: 2,4 => UNS
* INC # H1: 1 # C9: 2,4 => UNS
* INC # H1: 1 # I1: 3,5 => UNS
* INC # H1: 1 # I1: 4 => UNS
* INC # H1: 1 # E9: 3,5 => UNS
* INC # H1: 1 # E9: 1,8 => UNS
* INC # H1: 1 # D2: 2,3 => UNS
* INC # H1: 1 # F2: 2,3 => UNS
* INC # H1: 1 # F6: 2,3 => UNS
* INC # H1: 1 # F6: 7,8 => UNS
* INC # H1: 1 => UNS
* INC # H2: 1 # A3: 2,7 => UNS
* INC # H2: 1 # B3: 2,7 => UNS
* INC # H2: 1 # C4: 2,7 => UNS
* INC # H2: 1 # C6: 2,7 => UNS
* INC # H2: 1 # C7: 2,7 => UNS
* INC # H2: 1 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for E1,I1: 5..:

* INC # E1: 5 # D2: 1,9 => UNS
* INC # E1: 5 # D3: 1,9 => UNS
* INC # E1: 5 # E4: 1,9 => UNS
* INC # E1: 5 # E5: 1,9 => UNS
* INC # E1: 5 # H1: 3,4 => UNS
* INC # E1: 5 # H1: 1,2 => UNS
* INC # E1: 5 # I6: 3,4 => UNS
* INC # E1: 5 # I9: 3,4 => UNS
* INC # E1: 5 => UNS
* INC # I1: 5 # F1: 1,3 => UNS
* INC # I1: 5 # D2: 1,3 => UNS
* INC # I1: 5 # F2: 1,3 => UNS
* INC # I1: 5 # H1: 1,3 => UNS
* INC # I1: 5 # H1: 2,4 => UNS
* INC # I1: 5 # E5: 1,3 => UNS
* INC # I1: 5 # E9: 1,3 => UNS
* INC # I1: 5 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for D2,F2: 8..:

* INC # D2: 8 # D9: 1,6 => UNS
* INC # D2: 8 # D9: 3,5 => UNS
* INC # D2: 8 # A7: 1,6 => UNS
* INC # D2: 8 # A7: 2,4,7,8 => UNS
* INC # D2: 8 # D9: 3,6 => UNS
* INC # D2: 8 # D9: 1,5 => UNS
* INC # D2: 8 => UNS
* INC # F2: 8 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for E7,F8: 7..:

* INC # F8: 7 # G8: 4,9 => UNS
* INC # F8: 7 # H8: 4,9 => UNS
* INC # F8: 7 # B4: 4,9 => UNS
* INC # F8: 7 # B6: 4,9 => UNS
* INC # F8: 7 # D7: 1,8 => UNS
* DIS # F8: 7 # D9: 1,8 => CTR => D9: 3,5,6
* DIS # F8: 7 + D9: 3,5,6 # E9: 1,8 => CTR => E9: 3,5
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # D7: 1,8 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # D7: 6 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # E4: 1,8 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # E5: 1,8 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # G8: 4,9 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # H8: 4,9 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # B4: 4,9 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # B6: 4,9 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # D7: 1,8 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # D7: 6 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # E4: 1,8 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # E5: 1,8 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # D9: 3,5 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # D9: 6 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # E1: 3,5 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 # E1: 1 => UNS
* INC # F8: 7 + D9: 3,5,6 + E9: 3,5 => UNS
* INC # E7: 7 => UNS
* CNT  25 HDP CHAINS /  25 HYP OPENED

Full list of HDP chains traversed for G3,G5: 5..:

* INC # G3: 5 # D2: 1,9 => UNS
* INC # G3: 5 # D3: 1,9 => UNS
* INC # G3: 5 # E4: 1,9 => UNS
* INC # G3: 5 # E5: 1,9 => UNS
* INC # G3: 5 # H1: 3,4 => UNS
* INC # G3: 5 # H1: 1,2 => UNS
* INC # G3: 5 # I9: 3,4 => UNS
* INC # G3: 5 # I9: 6,8,9 => UNS
* INC # G3: 5 => UNS
* INC # G5: 5 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for D3,D9: 5..:

* INC # D3: 5 # F1: 1,3 => UNS
* INC # D3: 5 # D2: 1,3 => UNS
* INC # D3: 5 # F2: 1,3 => UNS
* INC # D3: 5 # H1: 1,3 => UNS
* INC # D3: 5 # H1: 2,4 => UNS
* INC # D3: 5 # E5: 1,3 => UNS
* INC # D3: 5 # E5: 7,8,9 => UNS
* INC # D3: 5 # D2: 1,9 => UNS
* INC # D3: 5 # D2: 2,3,8 => UNS
* INC # D3: 5 # E4: 1,9 => UNS
* INC # D3: 5 # E5: 1,9 => UNS
* INC # D3: 5 => UNS
* INC # D9: 5 => UNS
* CNT  13 HDP CHAINS /  13 HYP OPENED

Full list of HDP chains traversed for B6,I6: 5..:

* INC # I6: 5 # D2: 1,9 => UNS
* INC # I6: 5 # D3: 1,9 => UNS
* INC # I6: 5 # E4: 1,9 => UNS
* INC # I6: 5 # E5: 1,9 => UNS
* INC # I6: 5 # H1: 3,4 => UNS
* INC # I6: 5 # H1: 1,2 => UNS
* INC # I6: 5 # I9: 3,4 => UNS
* INC # I6: 5 # I9: 6,8,9 => UNS
* INC # I6: 5 => UNS
* INC # B6: 5 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for B5,G5: 5..:

* INC # B5: 5 # D2: 1,9 => UNS
* INC # B5: 5 # D3: 1,9 => UNS
* INC # B5: 5 # E4: 1,9 => UNS
* INC # B5: 5 # E5: 1,9 => UNS
* INC # B5: 5 # H1: 3,4 => UNS
* INC # B5: 5 # H1: 1,2 => UNS
* INC # B5: 5 # I9: 3,4 => UNS
* INC # B5: 5 # I9: 6,8,9 => UNS
* INC # B5: 5 => UNS
* INC # G5: 5 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for D9,E9: 5..:

* INC # E9: 5 # F1: 1,3 => UNS
* INC # E9: 5 # D2: 1,3 => UNS
* INC # E9: 5 # F2: 1,3 => UNS
* INC # E9: 5 # H1: 1,3 => UNS
* INC # E9: 5 # H1: 2,4 => UNS
* INC # E9: 5 # E5: 1,3 => UNS
* INC # E9: 5 # E5: 7,8,9 => UNS
* INC # E9: 5 # D2: 1,9 => UNS
* INC # E9: 5 # D2: 2,3,8 => UNS
* INC # E9: 5 # E4: 1,9 => UNS
* INC # E9: 5 # E5: 1,9 => UNS
* INC # E9: 5 => UNS
* INC # D9: 5 => UNS
* CNT  13 HDP CHAINS /  13 HYP OPENED

Full list of HDP chains traversed for G5,I6: 5..:

* INC # I6: 5 # D2: 1,9 => UNS
* INC # I6: 5 # D3: 1,9 => UNS
* INC # I6: 5 # E4: 1,9 => UNS
* INC # I6: 5 # E5: 1,9 => UNS
* INC # I6: 5 # H1: 3,4 => UNS
* INC # I6: 5 # H1: 1,2 => UNS
* INC # I6: 5 # I9: 3,4 => UNS
* INC # I6: 5 # I9: 6,8,9 => UNS
* INC # I6: 5 => UNS
* INC # G5: 5 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for B5,B6: 5..:

* INC # B5: 5 # D2: 1,9 => UNS
* INC # B5: 5 # D3: 1,9 => UNS
* INC # B5: 5 # E4: 1,9 => UNS
* INC # B5: 5 # E5: 1,9 => UNS
* INC # B5: 5 # H1: 3,4 => UNS
* INC # B5: 5 # H1: 1,2 => UNS
* INC # B5: 5 # I9: 3,4 => UNS
* INC # B5: 5 # I9: 6,8,9 => UNS
* INC # B5: 5 => UNS
* INC # B6: 5 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for F8,F9: 4..:

* INC # F8: 4 # B4: 7,9 => UNS
* INC # F8: 4 # B5: 7,9 => UNS
* INC # F8: 4 # B6: 7,9 => UNS
* INC # F8: 4 # G8: 3,9 => UNS
* PRF # F8: 4 # H9: 3,9 => SOL
* STA # F8: 4 + H9: 3,9
* CNT   5 HDP CHAINS /   6 HYP OPENED