Analysis of xx-ph-00265876-12_12_03-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: .......12.....3..4..1.2.5....4.5...6.3...7...8..9.......5.6..4..9...56..7..8..... initial

Autosolve

position: .......12.....3..4..1.2.5....4.5...6.3...7...8..9.......5.6..4..9...56..7..8..... 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

Time used: 0:00:00.000007

List of important HDP chains detected for B9,C9: 6..:

* DIS # B9: 6 # F9: 2,9 => CTR => F9: 1,4
* CNT   1 HDP CHAINS /  41 HYP OPENED

List of important HDP chains detected for D5,F6: 6..:

* DIS # F6: 6 # B6: 2,7 => CTR => B6: 1,5
* CNT   1 HDP CHAINS /  32 HYP OPENED

List of important HDP chains detected for B7,C8: 8..:

* DIS # C8: 8 # D7: 1,2 => CTR => D7: 3,7
* PRF # C8: 8 + D7: 3,7 # F7: 1,2 => SOL
* STA # C8: 8 + D7: 3,7 + F7: 1,2
* CNT   2 HDP CHAINS /  12 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

.......12.....3..4..1.2.5....4.5...6.3...7...8..9.......5.6..4..9...56..7..8..... initial
.......12.....3..4..1.2.5....4.5...6.3...7...8..9.......5.6..4..9...56..7..8..... autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D2,E2: 1.. / D2 = 1  =>  1 pairs (_) / E2 = 1  =>  2 pairs (_)
D4,E6: 3.. / D4 = 3  =>  1 pairs (_) / E6 = 3  =>  1 pairs (_)
G5,G6: 4.. / G5 = 4  =>  1 pairs (_) / G6 = 4  =>  1 pairs (_)
A8,B9: 4.. / A8 = 4  =>  0 pairs (_) / B9 = 4  =>  6 pairs (_)
D1,D2: 5.. / D1 = 5  =>  0 pairs (_) / D2 = 5  =>  2 pairs (_)
A5,B6: 5.. / A5 = 5  =>  0 pairs (_) / B6 = 5  =>  0 pairs (_)
H9,I9: 5.. / H9 = 5  =>  0 pairs (_) / I9 = 5  =>  0 pairs (_)
H2,H3: 6.. / H2 = 6  =>  0 pairs (_) / H3 = 6  =>  1 pairs (_)
D5,F6: 6.. / D5 = 6  =>  2 pairs (_) / F6 = 6  =>  1 pairs (_)
B9,C9: 6.. / B9 = 6  =>  2 pairs (_) / C9 = 6  =>  6 pairs (_)
F4,E5: 8.. / F4 = 8  =>  1 pairs (_) / E5 = 8  =>  1 pairs (_)
B7,C8: 8.. / B7 = 8  =>  1 pairs (_) / C8 = 8  =>  1 pairs (_)
* DURATION: 0:00:06.775786  START: 19:13:24.828822  END: 19:13:31.604608 2020-10-01
* CP COUNT: (12)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
B9,C9: 6.. / B9 = 6 ==>  3 pairs (_) / C9 = 6 ==>  6 pairs (_)
A8,B9: 4.. / A8 = 4 ==>  0 pairs (_) / B9 = 4 ==>  6 pairs (_)
D5,F6: 6.. / D5 = 6 ==>  2 pairs (_) / F6 = 6 ==>  2 pairs (_)
D2,E2: 1.. / D2 = 1 ==>  1 pairs (_) / E2 = 1 ==>  2 pairs (_)
D1,D2: 5.. / D1 = 5 ==>  0 pairs (_) / D2 = 5 ==>  2 pairs (_)
B7,C8: 8.. / B7 = 8 ==>  1 pairs (_) / C8 = 8 ==>  0 pairs (*)
* DURATION: 0:01:01.435157  START: 19:13:31.605251  END: 19:14:33.040408 2020-10-01
* REASONING B9,C9: 6..
* DIS # B9: 6 # F9: 2,9 => CTR => F9: 1,4
* CNT   1 HDP CHAINS /  41 HYP OPENED
* REASONING D5,F6: 6..
* DIS # F6: 6 # B6: 2,7 => CTR => B6: 1,5
* CNT   1 HDP CHAINS /  32 HYP OPENED
* REASONING B7,C8: 8..
* DIS # C8: 8 # D7: 1,2 => CTR => D7: 3,7
* PRF # C8: 8 + D7: 3,7 # F7: 1,2 => SOL
* STA # C8: 8 + D7: 3,7 + F7: 1,2
* CNT   2 HDP CHAINS /  12 HYP OPENED
* DCP COUNT: (6)
* SOLUTION FOUND

Header Info

265876;12_12_03;dob;22;11.50;11.50;9.90

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for B9,C9: 6..:

* INC # C9: 6 # A1: 5,6 => UNS
* INC # C9: 6 # A2: 5,6 => UNS
* INC # C9: 6 # A4: 2,9 => UNS
* INC # C9: 6 # A4: 1 => UNS
* INC # C9: 6 # G5: 2,9 => UNS
* INC # C9: 6 # H5: 2,9 => UNS
* INC # C9: 6 # C2: 2,9 => UNS
* INC # C9: 6 # C2: 7,8 => UNS
* INC # C9: 6 # B1: 5,6 => UNS
* INC # C9: 6 # B2: 5,6 => UNS
* INC # C9: 6 # B4: 2,7 => UNS
* INC # C9: 6 # B4: 1 => UNS
* INC # C9: 6 # G6: 2,7 => UNS
* INC # C9: 6 # H6: 2,7 => UNS
* INC # C9: 6 # C2: 2,7 => UNS
* INC # C9: 6 # C2: 8,9 => UNS
* INC # C9: 6 # G4: 2,3 => UNS
* INC # C9: 6 # H4: 2,3 => UNS
* INC # C9: 6 # D7: 2,3 => UNS
* INC # C9: 6 # D8: 2,3 => UNS
* INC # C9: 6 # G4: 2,8 => UNS
* INC # C9: 6 # H4: 2,8 => UNS
* INC # C9: 6 => UNS
* INC # B9: 6 # A7: 2,3 => UNS
* INC # B9: 6 # C8: 2,3 => UNS
* INC # B9: 6 # G9: 2,3 => UNS
* INC # B9: 6 # H9: 2,3 => UNS
* DIS # B9: 6 # F9: 2,9 => CTR => F9: 1,4
* INC # B9: 6 + F9: 1,4 # G7: 2,9 => UNS
* INC # B9: 6 + F9: 1,4 # G7: 3,7,8 => UNS
* INC # B9: 6 + F9: 1,4 # A7: 2,3 => UNS
* INC # B9: 6 + F9: 1,4 # C8: 2,3 => UNS
* INC # B9: 6 + F9: 1,4 # G9: 2,3 => UNS
* INC # B9: 6 + F9: 1,4 # H9: 2,3 => UNS
* INC # B9: 6 + F9: 1,4 # G7: 2,9 => UNS
* INC # B9: 6 + F9: 1,4 # G7: 3,7,8 => UNS
* INC # B9: 6 + F9: 1,4 # E9: 1,4 => UNS
* INC # B9: 6 + F9: 1,4 # E9: 3,9 => UNS
* INC # B9: 6 + F9: 1,4 # F6: 1,4 => UNS
* INC # B9: 6 + F9: 1,4 # F6: 2,6 => UNS
* INC # B9: 6 + F9: 1,4 => UNS
* CNT  41 HDP CHAINS /  41 HYP OPENED

Full list of HDP chains traversed for A8,B9: 4..:

* INC # B9: 4 # A1: 5,6 => UNS
* INC # B9: 4 # A2: 5,6 => UNS
* INC # B9: 4 # A4: 2,9 => UNS
* INC # B9: 4 # A4: 1 => UNS
* INC # B9: 4 # G5: 2,9 => UNS
* INC # B9: 4 # H5: 2,9 => UNS
* INC # B9: 4 # C2: 2,9 => UNS
* INC # B9: 4 # C2: 7,8 => UNS
* INC # B9: 4 # B1: 5,6 => UNS
* INC # B9: 4 # B2: 5,6 => UNS
* INC # B9: 4 # B4: 2,7 => UNS
* INC # B9: 4 # B4: 1 => UNS
* INC # B9: 4 # G6: 2,7 => UNS
* INC # B9: 4 # H6: 2,7 => UNS
* INC # B9: 4 # C2: 2,7 => UNS
* INC # B9: 4 # C2: 8,9 => UNS
* INC # B9: 4 # G4: 2,3 => UNS
* INC # B9: 4 # H4: 2,3 => UNS
* INC # B9: 4 # D7: 2,3 => UNS
* INC # B9: 4 # D8: 2,3 => UNS
* INC # B9: 4 # G4: 2,8 => UNS
* INC # B9: 4 # H4: 2,8 => UNS
* INC # B9: 4 => UNS
* INC # A8: 4 => UNS
* CNT  24 HDP CHAINS /  24 HYP OPENED

Full list of HDP chains traversed for D5,F6: 6..:

* INC # D5: 6 # D1: 4,7 => UNS
* INC # D5: 6 # E1: 4,7 => UNS
* INC # D5: 6 # B3: 4,7 => UNS
* INC # D5: 6 # B3: 8 => UNS
* INC # D5: 6 # D8: 4,7 => UNS
* INC # D5: 6 # D8: 1,2,3 => UNS
* INC # D5: 6 # A4: 2,9 => UNS
* INC # D5: 6 # A5: 2,9 => UNS
* INC # D5: 6 # G5: 2,9 => UNS
* INC # D5: 6 # H5: 2,9 => UNS
* INC # D5: 6 # C2: 2,9 => UNS
* INC # D5: 6 # C2: 7,8 => UNS
* INC # D5: 6 => UNS
* INC # F6: 6 # B4: 2,7 => UNS
* DIS # F6: 6 # B6: 2,7 => CTR => B6: 1,5
* INC # F6: 6 + B6: 1,5 # B4: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # B4: 1 => UNS
* INC # F6: 6 + B6: 1,5 # G6: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # H6: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # C2: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # C2: 6,8,9 => UNS
* INC # F6: 6 + B6: 1,5 # A5: 1,5 => UNS
* INC # F6: 6 + B6: 1,5 # A5: 2,6,9 => UNS
* INC # F6: 6 + B6: 1,5 # I6: 1,5 => UNS
* INC # F6: 6 + B6: 1,5 # I6: 3,7 => UNS
* INC # F6: 6 + B6: 1,5 # B4: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # B4: 1 => UNS
* INC # F6: 6 + B6: 1,5 # G6: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # H6: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # C2: 2,7 => UNS
* INC # F6: 6 + B6: 1,5 # C2: 6,8,9 => UNS
* INC # F6: 6 + B6: 1,5 => UNS
* CNT  32 HDP CHAINS /  32 HYP OPENED

Full list of HDP chains traversed for D2,E2: 1..:

* INC # E2: 1 # G5: 4,8 => UNS
* INC # E2: 1 # G5: 1,2,9 => UNS
* INC # E2: 1 # E1: 4,8 => UNS
* INC # E2: 1 # E1: 7,9 => UNS
* INC # E2: 1 # G6: 3,4 => UNS
* INC # E2: 1 # G6: 1,2,7 => UNS
* INC # E2: 1 # E8: 3,4 => UNS
* INC # E2: 1 # E9: 3,4 => UNS
* INC # E2: 1 => UNS
* INC # D2: 1 # G4: 2,3 => UNS
* INC # D2: 1 # H4: 2,3 => UNS
* INC # D2: 1 # D7: 2,3 => UNS
* INC # D2: 1 # D8: 2,3 => UNS
* INC # D2: 1 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for D1,D2: 5..:

* INC # D2: 5 # G5: 4,8 => UNS
* INC # D2: 5 # G5: 1,2,9 => UNS
* INC # D2: 5 # E1: 4,8 => UNS
* INC # D2: 5 # E1: 7,9 => UNS
* INC # D2: 5 # G6: 3,4 => UNS
* INC # D2: 5 # G6: 1,2,7 => UNS
* INC # D2: 5 # E8: 3,4 => UNS
* INC # D2: 5 # E9: 3,4 => UNS
* INC # D2: 5 => UNS
* INC # D1: 5 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for B7,C8: 8..:

* INC # B7: 8 # A7: 2,3 => UNS
* INC # B7: 8 # A8: 2,3 => UNS
* INC # B7: 8 # C9: 2,3 => UNS
* INC # B7: 8 # D8: 2,3 => UNS
* INC # B7: 8 # H8: 2,3 => UNS
* INC # B7: 8 => UNS
* INC # C8: 8 # A7: 1,2 => UNS
* INC # C8: 8 # A8: 1,2 => UNS
* INC # C8: 8 # B9: 1,2 => UNS
* DIS # C8: 8 # D7: 1,2 => CTR => D7: 3,7
* PRF # C8: 8 + D7: 3,7 # F7: 1,2 => SOL
* STA # C8: 8 + D7: 3,7 + F7: 1,2
* CNT  11 HDP CHAINS /  12 HYP OPENED