Analysis of xx-ph-00262539-12_12_03-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: .......12.....3..4..2.5.6....1.4...6.3.7.....8....9.....5.1..6..7....4..9..8..5.. initial

Autosolve

position: .......12.....3.54..2.5.6....1.4...6.3.7.....8....9.....5.1..6..7....4..9..8..5.. 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

Time used: 0:00:00.000006

List of important HDP chains detected for A4,C6: 7..:

* DIS # A4: 7 # C1: 4,6 => CTR => C1: 3,7,8,9
* CNT   1 HDP CHAINS /  38 HYP OPENED

List of important HDP chains detected for D2,E2: 2..:

* DIS # E2: 2 # F5: 6,8 => CTR => F5: 1,2,5
* DIS # E2: 2 + F5: 1,2,5 # D6: 3,6 => CTR => D6: 1,2,5
* DIS # E2: 2 + F5: 1,2,5 + D6: 1,2,5 # D8: 3,9 => CTR => D8: 2,5,6
* CNT   3 HDP CHAINS /  24 HYP OPENED

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

* DIS # B7: 8 # C1: 3,6 => CTR => C1: 4,7,8,9
* DIS # C8: 8 # D7: 2,4 => CTR => D7: 3,9
* DIS # C8: 8 + D7: 3,9 # F7: 2,4 => CTR => F7: 7
* PRF # C8: 8 + D7: 3,9 + F7: 7 # E1: 6,8 => SOL
* STA # C8: 8 + D7: 3,9 + F7: 7 + E1: 6,8
* CNT   4 HDP CHAINS /  32 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..2.5.6....1.4...6.3.7.....8....9.....5.1..6..7....4..9..8..5.. initial
.......12.....3.54..2.5.6....1.4...6.3.7.....8....9.....5.1..6..7....4..9..8..5.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
F5,D6: 1.. / F5 = 1  =>  0 pairs (_) / D6 = 1  =>  1 pairs (_)
G5,G6: 1.. / G5 = 1  =>  1 pairs (_) / G6 = 1  =>  0 pairs (_)
A8,B9: 1.. / A8 = 1  =>  1 pairs (_) / B9 = 1  =>  1 pairs (_)
I8,I9: 1.. / I8 = 1  =>  1 pairs (_) / I9 = 1  =>  1 pairs (_)
F5,G5: 1.. / F5 = 1  =>  0 pairs (_) / G5 = 1  =>  1 pairs (_)
D6,G6: 1.. / D6 = 1  =>  1 pairs (_) / G6 = 1  =>  0 pairs (_)
A8,I8: 1.. / A8 = 1  =>  1 pairs (_) / I8 = 1  =>  1 pairs (_)
B9,I9: 1.. / B9 = 1  =>  1 pairs (_) / I9 = 1  =>  1 pairs (_)
F3,F5: 1.. / F3 = 1  =>  1 pairs (_) / F5 = 1  =>  0 pairs (_)
D2,E2: 2.. / D2 = 2  =>  1 pairs (_) / E2 = 2  =>  2 pairs (_)
H5,H6: 4.. / H5 = 4  =>  1 pairs (_) / H6 = 4  =>  1 pairs (_)
A1,B1: 5.. / A1 = 5  =>  1 pairs (_) / B1 = 5  =>  1 pairs (_)
I5,I6: 5.. / I5 = 5  =>  1 pairs (_) / I6 = 5  =>  1 pairs (_)
D8,F8: 5.. / D8 = 5  =>  2 pairs (_) / F8 = 5  =>  1 pairs (_)
A4,C6: 7.. / A4 = 7  =>  2 pairs (_) / C6 = 7  =>  2 pairs (_)
B7,C8: 8.. / B7 = 8  =>  1 pairs (_) / C8 = 8  =>  1 pairs (_)
B4,C5: 9.. / B4 = 9  =>  1 pairs (_) / C5 = 9  =>  2 pairs (_)
* DURATION: 0:00:10.910554  START: 04:22:13.548560  END: 04:22:24.459114 2020-12-24
* CP COUNT: (17)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A4,C6: 7.. / A4 = 7 ==>  2 pairs (_) / C6 = 7 ==>  2 pairs (_)
B4,C5: 9.. / B4 = 9 ==>  1 pairs (_) / C5 = 9 ==>  2 pairs (_)
D8,F8: 5.. / D8 = 5 ==>  2 pairs (_) / F8 = 5 ==>  1 pairs (_)
D2,E2: 2.. / D2 = 2 ==>  1 pairs (_) / E2 = 2 ==>  4 pairs (_)
B7,C8: 8.. / B7 = 8 ==>  2 pairs (_) / C8 = 8 ==>  0 pairs (*)
* DURATION: 0:01:09.140069  START: 04:22:24.459823  END: 04:23:33.599892 2020-12-24
* REASONING A4,C6: 7..
* DIS # A4: 7 # C1: 4,6 => CTR => C1: 3,7,8,9
* CNT   1 HDP CHAINS /  38 HYP OPENED
* REASONING D2,E2: 2..
* DIS # E2: 2 # F5: 6,8 => CTR => F5: 1,2,5
* DIS # E2: 2 + F5: 1,2,5 # D6: 3,6 => CTR => D6: 1,2,5
* DIS # E2: 2 + F5: 1,2,5 + D6: 1,2,5 # D8: 3,9 => CTR => D8: 2,5,6
* CNT   3 HDP CHAINS /  24 HYP OPENED
* REASONING B7,C8: 8..
* DIS # B7: 8 # C1: 3,6 => CTR => C1: 4,7,8,9
* DIS # C8: 8 # D7: 2,4 => CTR => D7: 3,9
* DIS # C8: 8 + D7: 3,9 # F7: 2,4 => CTR => F7: 7
* PRF # C8: 8 + D7: 3,9 + F7: 7 # E1: 6,8 => SOL
* STA # C8: 8 + D7: 3,9 + F7: 7 + E1: 6,8
* CNT   4 HDP CHAINS /  32 HYP OPENED
* DCP COUNT: (5)
* SOLUTION FOUND

Header Info

262539;12_12_03;dob;22;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A4,C6: 7..:

* INC # A4: 7 # B2: 1,6 => UNS
* INC # A4: 7 # B2: 8,9 => UNS
* INC # A4: 7 # D2: 1,6 => UNS
* INC # A4: 7 # D2: 2,9 => UNS
* INC # A4: 7 # A8: 1,6 => UNS
* INC # A4: 7 # A8: 2,3 => UNS
* INC # A4: 7 # A5: 4,6 => UNS
* INC # A4: 7 # C5: 4,6 => UNS
* INC # A4: 7 # B6: 4,6 => UNS
* DIS # A4: 7 # C1: 4,6 => CTR => C1: 3,7,8,9
* INC # A4: 7 + C1: 3,7,8,9 # C9: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C9: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C9: 3 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # A5: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C5: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # B6: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C9: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C9: 3 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # B2: 1,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # B2: 8,9 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # D2: 1,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # D2: 2,9 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # A8: 1,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # A8: 2,3 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # A5: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C5: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # B6: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C9: 4,6 => UNS
* INC # A4: 7 + C1: 3,7,8,9 # C9: 3 => UNS
* INC # A4: 7 + C1: 3,7,8,9 => UNS
* INC # C6: 7 # B4: 2,5 => UNS
* INC # C6: 7 # A5: 2,5 => UNS
* INC # C6: 7 # B6: 2,5 => UNS
* INC # C6: 7 # D4: 2,5 => UNS
* INC # C6: 7 # F4: 2,5 => UNS
* INC # C6: 7 # D6: 3,5 => UNS
* INC # C6: 7 # D6: 1,2,6 => UNS
* INC # C6: 7 => UNS
* CNT  38 HDP CHAINS /  38 HYP OPENED

Full list of HDP chains traversed for B4,C5: 9..:

* INC # C5: 9 # A4: 2,5 => UNS
* INC # C5: 9 # A5: 2,5 => UNS
* INC # C5: 9 # B6: 2,5 => UNS
* INC # C5: 9 # D4: 2,5 => UNS
* INC # C5: 9 # F4: 2,5 => UNS
* INC # C5: 9 # F5: 5,8 => UNS
* INC # C5: 9 # F5: 1,2,6 => UNS
* INC # C5: 9 => UNS
* INC # B4: 9 # A5: 4,6 => UNS
* INC # B4: 9 # B6: 4,6 => UNS
* INC # B4: 9 # C6: 4,6 => UNS
* INC # B4: 9 # C1: 4,6 => UNS
* INC # B4: 9 # C9: 4,6 => UNS
* INC # B4: 9 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for D8,F8: 5..:

* INC # D8: 5 # D6: 2,3 => UNS
* INC # D8: 5 # E6: 2,3 => UNS
* INC # D8: 5 # G4: 2,3 => UNS
* INC # D8: 5 # H4: 2,3 => UNS
* INC # D8: 5 # D7: 2,3 => UNS
* INC # D8: 5 # D7: 4,9 => UNS
* INC # D8: 5 # E8: 2,6 => UNS
* INC # D8: 5 # E9: 2,6 => UNS
* INC # D8: 5 # F9: 2,6 => UNS
* INC # D8: 5 # A8: 2,6 => UNS
* INC # D8: 5 # A8: 1,3 => UNS
* INC # D8: 5 # F5: 2,6 => UNS
* INC # D8: 5 # F5: 1,5,8 => UNS
* INC # D8: 5 => UNS
* INC # F8: 5 # E5: 2,8 => UNS
* INC # F8: 5 # F5: 2,8 => UNS
* INC # F8: 5 # G4: 2,8 => UNS
* INC # F8: 5 # H4: 2,8 => UNS
* INC # F8: 5 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for D2,E2: 2..:

* DIS # E2: 2 # F5: 6,8 => CTR => F5: 1,2,5
* INC # E2: 2 + F5: 1,2,5 # E1: 6,8 => UNS
* INC # E2: 2 + F5: 1,2,5 # E1: 7,9 => UNS
* DIS # E2: 2 + F5: 1,2,5 # D6: 3,6 => CTR => D6: 1,2,5
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 # D7: 3,9 => UNS
* DIS # E2: 2 + F5: 1,2,5 + D6: 1,2,5 # D8: 3,9 => CTR => D8: 2,5,6
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # D7: 3,9 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # D7: 2,4 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # H8: 3,9 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # I8: 3,9 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # H9: 3,7 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # I9: 3,7 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # D7: 3,9 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # D7: 2,4 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # H8: 3,9 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # I8: 3,9 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # H9: 3,7 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 # I9: 3,7 => UNS
* INC # E2: 2 + F5: 1,2,5 + D6: 1,2,5 + D8: 2,5,6 => UNS
* INC # D2: 2 # D6: 3,5 => UNS
* INC # D2: 2 # D6: 1,6 => UNS
* INC # D2: 2 # D8: 3,5 => UNS
* INC # D2: 2 # D8: 6,9 => UNS
* INC # D2: 2 => UNS
* CNT  24 HDP CHAINS /  24 HYP OPENED

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

* INC # B7: 8 # A8: 3,6 => UNS
* INC # B7: 8 # C9: 3,6 => UNS
* INC # B7: 8 # D8: 3,6 => UNS
* INC # B7: 8 # E8: 3,6 => UNS
* DIS # B7: 8 # C1: 3,6 => CTR => C1: 4,7,8,9
* INC # B7: 8 + C1: 4,7,8,9 # C9: 3,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # C9: 4 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # D8: 3,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # E8: 3,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # B9: 2,4 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # B9: 1,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # D7: 2,4 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # F7: 2,4 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # A5: 2,4 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # A5: 5,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # C9: 3,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # C9: 4 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # D8: 3,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 # E8: 3,6 => UNS
* INC # B7: 8 + C1: 4,7,8,9 => UNS
* INC # C8: 8 # A7: 2,4 => UNS
* INC # C8: 8 # B9: 2,4 => UNS
* DIS # C8: 8 # D7: 2,4 => CTR => D7: 3,9
* DIS # C8: 8 + D7: 3,9 # F7: 2,4 => CTR => F7: 7
* INC # C8: 8 + D7: 3,9 + F7: 7 # B6: 2,4 => UNS
* INC # C8: 8 + D7: 3,9 + F7: 7 # B6: 5,6 => UNS
* INC # C8: 8 + D7: 3,9 + F7: 7 # A7: 2,4 => UNS
* INC # C8: 8 + D7: 3,9 + F7: 7 # A7: 3 => UNS
* INC # C8: 8 + D7: 3,9 + F7: 7 # B6: 2,4 => UNS
* INC # C8: 8 + D7: 3,9 + F7: 7 # B6: 5,6 => UNS
* PRF # C8: 8 + D7: 3,9 + F7: 7 # E1: 6,8 => SOL
* STA # C8: 8 + D7: 3,9 + F7: 7 + E1: 6,8
* CNT  31 HDP CHAINS /  32 HYP OPENED