Analysis of xx-ph-02489346-2019_08_05_a-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76.5..7..4..9....3.8....6...........6...97....546..4..5..7...9......2.17...... initial

Autosolve

position: 98.76.5..7..4..9....3.8..7.6...........6...97.7..546..4..5..7...9......2.17...... 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

Time used: 0:00:00.000008

List of important HDP chains detected for B3,I3: 6..:

* DIS # B3: 6 # F3: 1,2 => CTR => F3: 5,9
* DIS # B3: 6 + F3: 5,9 # F4: 1,2 => CTR => F4: 3,7,8,9
* CNT   2 HDP CHAINS /  77 HYP OPENED

List of important HDP chains detected for C1,B3: 4..:

* DIS # B3: 4 # C6: 1,2 => CTR => C6: 8,9
* CNT   1 HDP CHAINS /  67 HYP OPENED

List of important HDP chains detected for C6,D6: 9..:

* PRF # D6: 9 # B3: 2,6 => SOL
* STA # D6: 9 + B3: 2,6
* 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

98.76.5..7..4..9....3.8....6...........6...97....546..4..5..7...9......2.17...... initial
98.76.5..7..4..9....3.8..7.6...........6...97.7..546..4..5..7...9......2.17...... autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
C1,B3: 4.. / C1 = 4  =>  1 pairs (_) / B3 = 4  =>  3 pairs (_)
E8,E9: 4.. / E8 = 4  =>  0 pairs (_) / E9 = 4  =>  1 pairs (_)
F2,F3: 5.. / F2 = 5  =>  1 pairs (_) / F3 = 5  =>  3 pairs (_)
H4,I4: 5.. / H4 = 5  =>  3 pairs (_) / I4 = 5  =>  0 pairs (_)
I4,I9: 5.. / I4 = 5  =>  0 pairs (_) / I9 = 5  =>  3 pairs (_)
B3,I3: 6.. / B3 = 6  =>  7 pairs (_) / I3 = 6  =>  0 pairs (_)
E4,F4: 7.. / E4 = 7  =>  0 pairs (_) / F4 = 7  =>  1 pairs (_)
E8,F8: 7.. / E8 = 7  =>  1 pairs (_) / F8 = 7  =>  0 pairs (_)
E4,E8: 7.. / E4 = 7  =>  0 pairs (_) / E8 = 7  =>  1 pairs (_)
F4,F8: 7.. / F4 = 7  =>  1 pairs (_) / F8 = 7  =>  0 pairs (_)
H2,I2: 8.. / H2 = 8  =>  0 pairs (_) / I2 = 8  =>  1 pairs (_)
D3,F3: 9.. / D3 = 9  =>  2 pairs (_) / F3 = 9  =>  2 pairs (_)
C4,C6: 9.. / C4 = 9  =>  2 pairs (_) / C6 = 9  =>  0 pairs (_)
I7,I9: 9.. / I7 = 9  =>  3 pairs (_) / I9 = 9  =>  3 pairs (_)
C6,D6: 9.. / C6 = 9  =>  0 pairs (_) / D6 = 9  =>  2 pairs (_)
* DURATION: 0:00:12.080797  START: 18:18:27.272449  END: 18:18:39.353246 2020-11-17
* CP COUNT: (15)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
B3,I3: 6.. / B3 = 6 ==>  8 pairs (_) / I3 = 6 ==>  0 pairs (_)
I7,I9: 9.. / I7 = 9 ==>  3 pairs (_) / I9 = 9 ==>  3 pairs (_)
F2,F3: 5.. / F2 = 5 ==>  1 pairs (_) / F3 = 5 ==>  3 pairs (_)
C1,B3: 4.. / C1 = 4 ==>  1 pairs (_) / B3 = 4 ==>  4 pairs (_)
I4,I9: 5.. / I4 = 5 ==>  0 pairs (_) / I9 = 5 ==>  3 pairs (_)
H4,I4: 5.. / H4 = 5 ==>  3 pairs (_) / I4 = 5 ==>  0 pairs (_)
D3,F3: 9.. / D3 = 9 ==>  2 pairs (_) / F3 = 9 ==>  2 pairs (_)
C6,D6: 9.. / C6 = 9  =>  0 pairs (X) / D6 = 9 ==>  0 pairs (*)
* DURATION: 0:02:01.202839  START: 18:18:39.354061  END: 18:20:40.556900 2020-11-17
* REASONING B3,I3: 6..
* DIS # B3: 6 # F3: 1,2 => CTR => F3: 5,9
* DIS # B3: 6 + F3: 5,9 # F4: 1,2 => CTR => F4: 3,7,8,9
* CNT   2 HDP CHAINS /  77 HYP OPENED
* REASONING C1,B3: 4..
* DIS # B3: 4 # C6: 1,2 => CTR => C6: 8,9
* CNT   1 HDP CHAINS /  67 HYP OPENED
* REASONING C6,D6: 9..
* PRF # D6: 9 # B3: 2,6 => SOL
* STA # D6: 9 + B3: 2,6
* CNT   1 HDP CHAINS /   3 HYP OPENED
* DCP COUNT: (8)
* SOLUTION FOUND

Header Info

2489346;2019_08_05_a;PAQ;24;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for B3,I3: 6..:

* INC # B3: 6 # C2: 2,5 => UNS
* INC # B3: 6 # A3: 2,5 => UNS
* INC # B3: 6 # F2: 2,5 => UNS
* INC # B3: 6 # F2: 1,3 => UNS
* INC # B3: 6 # B5: 2,5 => UNS
* INC # B3: 6 # B5: 3,4 => UNS
* INC # B3: 6 # E2: 1,2 => UNS
* INC # B3: 6 # F2: 1,2 => UNS
* INC # B3: 6 # D3: 1,2 => UNS
* DIS # B3: 6 # F3: 1,2 => CTR => F3: 5,9
* INC # B3: 6 + F3: 5,9 # H1: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 # H1: 3 => UNS
* DIS # B3: 6 + F3: 5,9 # F4: 1,2 => CTR => F4: 3,7,8,9
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F5: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F7: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # E2: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F2: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # D3: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F5: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F7: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I4: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I6: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I7: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H7: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H8: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H9: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I7: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I9: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # G3: 1,4 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # G3: 2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I4: 1,4 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I4: 3,5,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # A9: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # A9: 5,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # E7: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F7: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # B4: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # B5: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # C2: 2,5 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # A3: 2,5 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F2: 2,5 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F2: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # B5: 2,5 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # B5: 3,4 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # E2: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F2: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # D3: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F5: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F7: 1,2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H1: 2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I4: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I6: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I7: 1,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H7: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H8: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # H9: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I7: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I9: 6,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # G3: 1,4 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # G3: 2 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I4: 1,4 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # I4: 3,5,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # A9: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # A9: 5,8 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # E7: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # F7: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # B4: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 # B5: 2,3 => UNS
* INC # B3: 6 + F3: 5,9 + F4: 3,7,8,9 => UNS
* INC # I3: 6 => UNS
* CNT  77 HDP CHAINS /  77 HYP OPENED

Full list of HDP chains traversed for I7,I9: 9..:

* INC # I7: 9 # F4: 7,9 => UNS
* INC # I7: 9 # F4: 1,2,3,8 => UNS
* INC # I7: 9 => UNS
* INC # I9: 9 # H1: 1,2 => UNS
* INC # I9: 9 # H2: 1,2 => UNS
* INC # I9: 9 # A3: 1,2 => UNS
* INC # I9: 9 # D3: 1,2 => UNS
* INC # I9: 9 # F3: 1,2 => UNS
* INC # I9: 9 # G4: 1,2 => UNS
* INC # I9: 9 # G5: 1,2 => UNS
* INC # I9: 9 => UNS
* CNT  11 HDP CHAINS /  11 HYP OPENED

Full list of HDP chains traversed for F2,F3: 5..:

* INC # F3: 5 # C1: 1,2 => UNS
* INC # F3: 5 # C2: 1,2 => UNS
* INC # F3: 5 # G3: 1,2 => UNS
* INC # F3: 5 # G3: 4 => UNS
* INC # F3: 5 # A5: 1,2 => UNS
* INC # F3: 5 # A6: 1,2 => UNS
* INC # F3: 5 => UNS
* INC # F2: 5 # C2: 2,6 => UNS
* INC # F2: 5 # B3: 2,6 => UNS
* INC # F2: 5 # H2: 2,6 => UNS
* INC # F2: 5 # H2: 1,3,8 => UNS
* INC # F2: 5 # B7: 2,6 => UNS
* INC # F2: 5 # B7: 3 => UNS
* INC # F2: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for C1,B3: 4..:

* INC # B3: 4 # C2: 1,2 => UNS
* INC # B3: 4 # A3: 1,2 => UNS
* INC # B3: 4 # F1: 1,2 => UNS
* INC # B3: 4 # H1: 1,2 => UNS
* INC # B3: 4 # C4: 1,2 => UNS
* INC # B3: 4 # C5: 1,2 => UNS
* DIS # B3: 4 # C6: 1,2 => CTR => C6: 8,9
* INC # B3: 4 + C6: 8,9 # C2: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # A3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # F1: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # H1: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # C4: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # C5: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # H1: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # H2: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # A3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # D3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # F3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # G4: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # G5: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # A5: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # B5: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # A6: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # D4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # E4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # F4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # G4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # H4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # B7: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # B7: 6 => UNS
* INC # B3: 4 + C6: 8,9 # C2: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # A3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # F1: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # H1: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # C4: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # C5: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # H1: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # H2: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # A3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # D3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # F3: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # G4: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # G5: 1,2 => UNS
* INC # B3: 4 + C6: 8,9 # A5: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # B5: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # A6: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # D4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # E4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # F4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # G4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # H4: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # B7: 2,3 => UNS
* INC # B3: 4 + C6: 8,9 # B7: 6 => UNS
* INC # B3: 4 + C6: 8,9 # C4: 8,9 => UNS
* INC # B3: 4 + C6: 8,9 # C4: 1,2,4 => UNS
* INC # B3: 4 + C6: 8,9 # D6: 8,9 => UNS
* INC # B3: 4 + C6: 8,9 # D6: 1,2,3 => UNS
* INC # B3: 4 + C6: 8,9 => UNS
* INC # C1: 4 # H1: 1,3 => UNS
* INC # C1: 4 # H2: 1,3 => UNS
* INC # C1: 4 # I2: 1,3 => UNS
* INC # C1: 4 # F1: 1,3 => UNS
* INC # C1: 4 # F1: 2 => UNS
* INC # C1: 4 # I4: 1,3 => UNS
* INC # C1: 4 # I6: 1,3 => UNS
* INC # C1: 4 # I7: 1,3 => UNS
* INC # C1: 4 => UNS
* CNT  67 HDP CHAINS /  67 HYP OPENED

Full list of HDP chains traversed for I4,I9: 5..:

* INC # I9: 5 # F4: 7,9 => UNS
* INC # I9: 5 # F4: 1,2,3,8 => UNS
* INC # I9: 5 => UNS
* INC # I4: 5 => UNS
* CNT   4 HDP CHAINS /   4 HYP OPENED

Full list of HDP chains traversed for H4,I4: 5..:

* INC # H4: 5 # F4: 7,9 => UNS
* INC # H4: 5 # F4: 1,2,3,8 => UNS
* INC # H4: 5 => UNS
* INC # I4: 5 => UNS
* CNT   4 HDP CHAINS /   4 HYP OPENED

Full list of HDP chains traversed for D3,F3: 9..:

* INC # D3: 9 => UNS
* INC # F3: 9 # C2: 2,6 => UNS
* INC # F3: 9 # B3: 2,6 => UNS
* INC # F3: 9 # H2: 2,6 => UNS
* INC # F3: 9 # H2: 1,3,8 => UNS
* INC # F3: 9 # B7: 2,6 => UNS
* INC # F3: 9 # B7: 3 => UNS
* INC # F3: 9 # F1: 1,2 => UNS
* INC # F3: 9 # E2: 1,2 => UNS
* INC # F3: 9 # A3: 1,2 => UNS
* INC # F3: 9 # G3: 1,2 => UNS
* INC # F3: 9 # D4: 1,2 => UNS
* INC # F3: 9 # D6: 1,2 => UNS
* INC # F3: 9 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for C6,D6: 9..:

* INC # D6: 9 # C2: 2,6 => UNS
* PRF # D6: 9 # B3: 2,6 => SOL
* STA # D6: 9 + B3: 2,6
* CNT   2 HDP CHAINS /   3 HYP OPENED