Analysis of xx-ph-00673913-12_12_19-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1..2..3.4..4..5.6....5...3...3.5.6..47...3.....5..4.7...7..6...84....8.9. initial

Autosolve

position: ........1..2..3.4..4..5.6....5...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: 0:00:00.000015

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....5...3...3.5.6..47...3.....5..4.7...7..6...84....8.9. initial
........1..2..3.4..4..5.6....5...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 (_)
A1,A2: 5.. / A1 = 5  =>  0 pairs (_) / A2 = 5  =>  2 pairs (_)
G9,I9: 5.. / G9 = 5  =>  1 pairs (_) / I9 = 5  =>  2 pairs (_)
H1,H6: 5.. / H1 = 5  =>  2 pairs (_) / H6 = 5  =>  0 pairs (_)
D1,D2: 6.. / D1 = 6  =>  2 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: 0:00:11.821187  START: 02:41:56.732465  END: 02:42:08.553652 2020-12-29
* CP COUNT: (12)
* 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 (_)
D1,D2: 6.. / D1 = 6 ==>  2 pairs (_) / D2 = 6 ==>  0 pairs (_)
H1,H6: 5.. / H1 = 5 ==>  2 pairs (_) / H6 = 5 ==>  0 pairs (_)
A1,A2: 5.. / A1 = 5 ==>  0 pairs (_) / A2 = 5 ==>  2 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: 0:02:10.618444  START: 02:42:08.554871  END: 02:44:19.173315 2020-12-29
* 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

673913;12_12_19;dob;24;11.30;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 D1,D2: 6..:

* INC # D1: 6 # A1: 8,9 => UNS
* INC # D1: 6 # C1: 8,9 => UNS
* INC # D1: 6 # A2: 8,9 => UNS
* INC # D1: 6 # B2: 8,9 => UNS
* INC # D1: 6 # A3: 8,9 => UNS
* INC # D1: 6 # C3: 8,9 => UNS
* INC # D1: 6 # E1: 8,9 => UNS
* INC # D1: 6 # G1: 8,9 => UNS
* INC # D1: 6 # B4: 8,9 => UNS
* INC # D1: 6 # B6: 8,9 => UNS
* INC # D1: 6 # A7: 1,2 => UNS
* INC # D1: 6 # A8: 1,2 => UNS
* INC # D1: 6 # D9: 1,2 => UNS
* INC # D1: 6 # E9: 1,2 => UNS
* INC # D1: 6 # G9: 1,2 => UNS
* INC # D1: 6 # B4: 1,2 => UNS
* INC # D1: 6 # B6: 1,2 => UNS
* INC # D1: 6 => UNS
* INC # D2: 6 => UNS
* CNT  19 HDP CHAINS /  19 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 A1,A2: 5..:

* INC # A2: 5 # G1: 8,9 => UNS
* INC # A2: 5 # G1: 2,5 => UNS
* INC # A2: 5 # B2: 8,9 => UNS
* INC # A2: 5 # D2: 8,9 => UNS
* INC # A2: 5 # E2: 8,9 => UNS
* INC # A2: 5 # G5: 8,9 => UNS
* INC # A2: 5 # G6: 8,9 => UNS
* INC # A2: 5 # I3: 7,9 => UNS
* INC # A2: 5 # I3: 2,3 => UNS
* INC # A2: 5 # D2: 7,9 => UNS
* INC # A2: 5 # E2: 7,9 => UNS
* INC # A2: 5 # I4: 7,9 => UNS
* INC # A2: 5 # I4: 2,6 => UNS
* INC # A2: 5 => UNS
* INC # A1: 5 => UNS
* CNT  15 HDP CHAINS /  15 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 # 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  10 HDP CHAINS /  10 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