Analysis of xx-ph-00321657-12_12_03-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1..2..3.4..4..5.6........3...3.5.6...7.4.3.....5..4.7...7..6...84....8.9. initial

Autosolve

position: ........1..2..3.4..4..5.6........3...3.5.6..47.4.3.....5..4.7...7..654.84....8.9. 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: 0:00:00.000006

List of important HDP chains detected for E5,H5: 7..:

* DIS # E5: 7 # G9: 1,2 => CTR => G9: 5
* DIS # E5: 7 + G9: 5 # B9: 6 => CTR => B9: 1,2
* DIS # E5: 7 + G9: 5 + B9: 1,2 # G1: 8,9 => CTR => G1: 2
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 # D2: 8,9 => CTR => D2: 1,6
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # I7: 3,6 => CTR => I7: 2
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 # H7: 1 => CTR => H7: 3,6
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 # D1: 8,9 => CTR => D1: 4,6
* PRF # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 # D3: 8,9 => SOL
* STA # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 + D3: 8,9
* CNT   8 HDP CHAINS /  49 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

........1..2..3.4..4..5.6........3...3.5.6...7.4.3.....5..4.7...7..6...84....8.9. initial
........1..2..3.4..4..5.6........3...3.5.6..47.4.3.....5..4.7...7..654.84....8.9. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D1,F1: 4.. / D1 = 4  =>  0 pairs (_) / F1 = 4  =>  0 pairs (_)
D4,F4: 4.. / D4 = 4  =>  0 pairs (_) / F4 = 4  =>  0 pairs (_)
D1,D4: 4.. / D1 = 4  =>  0 pairs (_) / D4 = 4  =>  0 pairs (_)
F1,F4: 4.. / F1 = 4  =>  0 pairs (_) / F4 = 4  =>  0 pairs (_)
A4,C4: 5.. / A4 = 5  =>  2 pairs (_) / C4 = 5  =>  0 pairs (_)
G9,I9: 5.. / G9 = 5  =>  1 pairs (_) / I9 = 5  =>  2 pairs (_)
C1,C4: 5.. / C1 = 5  =>  2 pairs (_) / C4 = 5  =>  0 pairs (_)
H1,H6: 5.. / H1 = 5  =>  2 pairs (_) / H6 = 5  =>  0 pairs (_)
D1,D2: 6.. / D1 = 6  =>  1 pairs (_) / D2 = 6  =>  0 pairs (_)
C1,C3: 7.. / C1 = 7  =>  1 pairs (_) / C3 = 7  =>  2 pairs (_)
D9,E9: 7.. / D9 = 7  =>  1 pairs (_) / E9 = 7  =>  2 pairs (_)
E5,H5: 7.. / E5 = 7  =>  1 pairs (_) / H5 = 7  =>  0 pairs (_)
A7,C7: 8.. / A7 = 8  =>  0 pairs (_) / C7 = 8  =>  1 pairs (_)
* DURATION: 0:00:09.012285  START: 14:45:37.867075  END: 14:45:46.879360 2020-10-28
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
D9,E9: 7.. / D9 = 7 ==>  1 pairs (_) / E9 = 7 ==>  2 pairs (_)
C1,C3: 7.. / C1 = 7 ==>  1 pairs (_) / C3 = 7 ==>  2 pairs (_)
G9,I9: 5.. / G9 = 5 ==>  1 pairs (_) / I9 = 5 ==>  2 pairs (_)
H1,H6: 5.. / H1 = 5 ==>  2 pairs (_) / H6 = 5 ==>  0 pairs (_)
C1,C4: 5.. / C1 = 5 ==>  2 pairs (_) / C4 = 5 ==>  0 pairs (_)
A4,C4: 5.. / A4 = 5 ==>  2 pairs (_) / C4 = 5 ==>  0 pairs (_)
A7,C7: 8.. / A7 = 8 ==>  0 pairs (_) / C7 = 8 ==>  1 pairs (_)
E5,H5: 7.. / E5 = 7 ==>  0 pairs (*) / H5 = 7  =>  0 pairs (X)
* DURATION: 0:01:16.282029  START: 14:45:46.879964  END: 14:47:03.161993 2020-10-28
* REASONING E5,H5: 7..
* DIS # E5: 7 # G9: 1,2 => CTR => G9: 5
* DIS # E5: 7 + G9: 5 # B9: 6 => CTR => B9: 1,2
* DIS # E5: 7 + G9: 5 + B9: 1,2 # G1: 8,9 => CTR => G1: 2
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 # D2: 8,9 => CTR => D2: 1,6
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # I7: 3,6 => CTR => I7: 2
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 # H7: 1 => CTR => H7: 3,6
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 # D1: 8,9 => CTR => D1: 4,6
* PRF # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 # D3: 8,9 => SOL
* STA # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 + D3: 8,9
* CNT   8 HDP CHAINS /  49 HYP OPENED
* DCP COUNT: (8)
* SOLUTION FOUND

Header Info

321657;12_12_03;dob;23;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for D9,E9: 7..:

* INC # E9: 7 # D1: 4,7 => UNS
* INC # E9: 7 # D1: 2,6,8,9 => UNS
* INC # E9: 7 # F1: 4,7 => UNS
* INC # E9: 7 # F1: 2,9 => UNS
* INC # E9: 7 => UNS
* INC # D9: 7 # D7: 1,2 => UNS
* INC # D9: 7 # F7: 1,2 => UNS
* INC # D9: 7 # D8: 1,2 => UNS
* INC # D9: 7 # B9: 1,2 => UNS
* INC # D9: 7 # G9: 1,2 => UNS
* INC # D9: 7 # E4: 1,2 => UNS
* INC # D9: 7 # E5: 1,2 => UNS
* INC # D9: 7 => UNS
* CNT  13 HDP CHAINS /  13 HYP OPENED

Full list of HDP chains traversed for C1,C3: 7..:

* INC # C3: 7 # D1: 4,7 => UNS
* INC # C3: 7 # D1: 2,6,8,9 => UNS
* INC # C3: 7 # D4: 4,7 => UNS
* INC # C3: 7 # D4: 1,2,8,9 => UNS
* INC # C3: 7 => UNS
* INC # C1: 7 # A7: 1,2 => UNS
* INC # C1: 7 # A8: 1,2 => UNS
* INC # C1: 7 # D9: 1,2 => UNS
* INC # C1: 7 # E9: 1,2 => UNS
* INC # C1: 7 # G9: 1,2 => UNS
* INC # C1: 7 # B4: 1,2 => UNS
* INC # C1: 7 # B6: 1,2 => UNS
* INC # C1: 7 => UNS
* CNT  13 HDP CHAINS /  13 HYP OPENED

Full list of HDP chains traversed for G9,I9: 5..:

* INC # I9: 5 # I3: 7,9 => UNS
* INC # I9: 5 # I3: 2,3 => UNS
* INC # I9: 5 # D2: 7,9 => UNS
* INC # I9: 5 # E2: 7,9 => UNS
* INC # I9: 5 # I4: 7,9 => UNS
* INC # I9: 5 # I4: 2,6 => UNS
* INC # I9: 5 # H7: 1,2 => UNS
* INC # I9: 5 # H8: 1,2 => UNS
* INC # I9: 5 # B9: 1,2 => UNS
* INC # I9: 5 # D9: 1,2 => UNS
* INC # I9: 5 # E9: 1,2 => UNS
* INC # I9: 5 # G5: 1,2 => UNS
* INC # I9: 5 # G6: 1,2 => UNS
* INC # I9: 5 => UNS
* INC # G9: 5 # G1: 8,9 => UNS
* INC # G9: 5 # G1: 2 => UNS
* INC # G9: 5 # A2: 8,9 => UNS
* INC # G9: 5 # B2: 8,9 => UNS
* INC # G9: 5 # D2: 8,9 => UNS
* INC # G9: 5 # E2: 8,9 => UNS
* INC # G9: 5 # G5: 8,9 => UNS
* INC # G9: 5 # G6: 8,9 => UNS
* INC # G9: 5 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for H1,H6: 5..:

* INC # H1: 5 # G1: 8,9 => UNS
* INC # H1: 5 # G1: 2 => UNS
* INC # H1: 5 # B2: 8,9 => UNS
* INC # H1: 5 # D2: 8,9 => UNS
* INC # H1: 5 # E2: 8,9 => UNS
* INC # H1: 5 # G5: 8,9 => UNS
* INC # H1: 5 # G6: 8,9 => UNS
* INC # H1: 5 # I3: 7,9 => UNS
* INC # H1: 5 # I3: 2,3 => UNS
* INC # H1: 5 # D2: 7,9 => UNS
* INC # H1: 5 # E2: 7,9 => UNS
* INC # H1: 5 # I4: 7,9 => UNS
* INC # H1: 5 # I4: 2,6 => UNS
* INC # H1: 5 => UNS
* INC # H6: 5 => UNS
* CNT  15 HDP CHAINS /  15 HYP OPENED

Full list of HDP chains traversed for C1,C4: 5..:

* INC # C1: 5 # D1: 4,7 => UNS
* INC # C1: 5 # D1: 2,6,8,9 => UNS
* INC # C1: 5 # D4: 4,7 => UNS
* INC # C1: 5 # D4: 1,2,8,9 => UNS
* INC # C1: 5 => UNS
* INC # C4: 5 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for A4,C4: 5..:

* INC # A4: 5 # D1: 4,7 => UNS
* INC # A4: 5 # D1: 2,6,8,9 => UNS
* INC # A4: 5 # D4: 4,7 => UNS
* INC # A4: 5 # D4: 1,2,8,9 => UNS
* INC # A4: 5 => UNS
* INC # C4: 5 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for A7,C7: 8..:

* INC # C7: 8 # A4: 1,9 => UNS
* INC # C7: 8 # B4: 1,9 => UNS
* INC # C7: 8 # C4: 1,9 => UNS
* INC # C7: 8 # A5: 1,9 => UNS
* INC # C7: 8 # B6: 1,9 => UNS
* INC # C7: 8 # E5: 1,9 => UNS
* INC # C7: 8 # G5: 1,9 => UNS
* INC # C7: 8 # C3: 1,9 => UNS
* INC # C7: 8 # C8: 1,9 => UNS
* INC # C7: 8 => UNS
* INC # A7: 8 => UNS
* CNT  11 HDP CHAINS /  11 HYP OPENED

Full list of HDP chains traversed for E5,H5: 7..:

* INC # E5: 7 # D7: 1,2 => UNS
* INC # E5: 7 # F7: 1,2 => UNS
* INC # E5: 7 # D8: 1,2 => UNS
* INC # E5: 7 # B9: 1,2 => UNS
* DIS # E5: 7 # G9: 1,2 => CTR => G9: 5
* INC # E5: 7 + G9: 5 # B9: 1,2 => UNS
* DIS # E5: 7 + G9: 5 # B9: 6 => CTR => B9: 1,2
* INC # E5: 7 + G9: 5 + B9: 1,2 # E4: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 # E4: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 # D7: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 # F7: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 # D8: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 # E4: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 # E4: 8,9 => UNS
* DIS # E5: 7 + G9: 5 + B9: 1,2 # G1: 8,9 => CTR => G1: 2
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 # B2: 8,9 => UNS
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 # D2: 8,9 => CTR => D2: 1,6
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # E2: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # G5: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # G6: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # B2: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # E2: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # G5: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # G6: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # H6: 2,8 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # H6: 6 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # A5: 2,8 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # A5: 1,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # A7: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # A8: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # B4: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # B6: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # A7: 3,6 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # C7: 3,6 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # C1: 3,6 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # C1: 7,8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # D7: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # F7: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # D8: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # E4: 1,2 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # E4: 8,9 => UNS
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # H7: 3,6 => UNS
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 # I7: 3,6 => CTR => I7: 2
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 # H7: 3,6 => UNS
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 # H7: 1 => CTR => H7: 3,6
* DIS # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 # D1: 8,9 => CTR => D1: 4,6
* INC # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 # E2: 8,9 => UNS
* PRF # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 # D3: 8,9 => SOL
* STA # E5: 7 + G9: 5 + B9: 1,2 + G1: 2 + D2: 1,6 + I7: 2 + H7: 3,6 + D1: 4,6 + D3: 8,9
* CNT  48 HDP CHAINS /  49 HYP OPENED