Analysis of xx-ph-00666151-12_12_19-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: .......12.....3.45..4.2.6....5.4..6..7....1..8..9..5....6.5...1.9...8...3..7..... initial

Autosolve

position: .......12.....3.45..4.2.6....5.4..6..7....1..8..9..5....6.5...1.9...8...3..7..... autosolve
Autosolve

Pair Reduction Variants

Deep Pair Reduction

Deep Pair Reduction

Time used: 0:00:00.194244

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: 0:00:00.000016

List of important HDP chains detected for A4,C5: 9..:

* DIS # C5: 9 # D4: 1,2 => CTR => D4: 3,8
* PRF # C5: 9 + D4: 3,8 # F4: 1,2 => SOL
* STA # C5: 9 + D4: 3,8 + F4: 1,2
* CNT   2 HDP CHAINS /  10 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.....3.45..4.2.6....5.4..6..7....1..8..9..5....6.5...1.9...8...3..7..... initial
.......12.....3.45..4.2.6....5.4..6..7....1..8..9..5....6.5...1.9...8...3..7..... autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* PAIRS (2)
A5: 4,6
B6: 4,6

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D1,F1: 4.. / D1 = 4  =>  3 pairs (_) / F1 = 4  =>  3 pairs (_)
A5,B6: 4.. / A5 = 4  =>  1 pairs (_) / B6 = 4  =>  4 pairs (_)
I5,I6: 4.. / I5 = 4  =>  4 pairs (_) / I6 = 4  =>  1 pairs (_)
A5,I5: 4.. / A5 = 4  =>  1 pairs (_) / I5 = 4  =>  4 pairs (_)
B6,I6: 4.. / B6 = 4  =>  4 pairs (_) / I6 = 4  =>  1 pairs (_)
D5,F5: 5.. / D5 = 5  =>  4 pairs (_) / F5 = 5  =>  2 pairs (_)
A8,B9: 5.. / A8 = 5  =>  2 pairs (_) / B9 = 5  =>  2 pairs (_)
H8,H9: 5.. / H8 = 5  =>  2 pairs (_) / H9 = 5  =>  2 pairs (_)
A8,H8: 5.. / A8 = 5  =>  2 pairs (_) / H8 = 5  =>  2 pairs (_)
B9,H9: 5.. / B9 = 5  =>  2 pairs (_) / H9 = 5  =>  2 pairs (_)
A5,B6: 6.. / A5 = 6  =>  4 pairs (_) / B6 = 6  =>  1 pairs (_)
I8,I9: 6.. / I8 = 6  =>  4 pairs (_) / I9 = 6  =>  4 pairs (_)
A4,C5: 9.. / A4 = 9  =>  3 pairs (_) / C5 = 9  =>  3 pairs (_)
* DURATION: 0:00:10.063365  START: 20:43:44.243709  END: 20:43:54.307074 2020-12-28
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
I8,I9: 6.. / I8 = 6 ==>  4 pairs (_) / I9 = 6 ==>  4 pairs (_)
D5,F5: 5.. / D5 = 5 ==>  4 pairs (_) / F5 = 5 ==>  2 pairs (_)
A5,B6: 6.. / A5 = 6 ==>  4 pairs (_) / B6 = 6 ==>  1 pairs (_)
B6,I6: 4.. / B6 = 4 ==>  4 pairs (_) / I6 = 4 ==>  1 pairs (_)
A5,I5: 4.. / A5 = 4 ==>  1 pairs (_) / I5 = 4 ==>  4 pairs (_)
I5,I6: 4.. / I5 = 4 ==>  4 pairs (_) / I6 = 4 ==>  1 pairs (_)
A5,B6: 4.. / A5 = 4 ==>  1 pairs (_) / B6 = 4 ==>  4 pairs (_)
A4,C5: 9.. / A4 = 9 ==>  3 pairs (_) / C5 = 9 ==>  0 pairs (*)
* DURATION: 0:01:44.716000  START: 20:43:55.115112  END: 20:45:39.831112 2020-12-28
* REASONING A4,C5: 9..
* DIS # C5: 9 # D4: 1,2 => CTR => D4: 3,8
* PRF # C5: 9 + D4: 3,8 # F4: 1,2 => SOL
* STA # C5: 9 + D4: 3,8 + F4: 1,2
* CNT   2 HDP CHAINS /  10 HYP OPENED
* DCP COUNT: (8)
* SOLUTION FOUND

Header Info

666151;12_12_19;dob;23;11.30;11.30;2.60

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for I8,I9: 6..:

* INC # I8: 6 # D8: 1,3 => UNS
* INC # I8: 6 # D8: 2,4 => UNS
* INC # I8: 6 # E6: 1,3 => UNS
* INC # I8: 6 # E6: 6,7 => UNS
* INC # I8: 6 # G7: 8,9 => UNS
* INC # I8: 6 # H7: 8,9 => UNS
* INC # I8: 6 # G9: 8,9 => UNS
* INC # I8: 6 # H9: 8,9 => UNS
* INC # I8: 6 # I3: 8,9 => UNS
* INC # I8: 6 # I4: 8,9 => UNS
* INC # I8: 6 # I5: 8,9 => UNS
* INC # I8: 6 => UNS
* INC # I9: 6 # F9: 1,9 => UNS
* INC # I9: 6 # F9: 2,4 => UNS
* INC # I9: 6 # E2: 1,9 => UNS
* INC # I9: 6 # E2: 6,7,8 => UNS
* INC # I9: 6 # G7: 3,7 => UNS
* INC # I9: 6 # H7: 3,7 => UNS
* INC # I9: 6 # G8: 3,7 => UNS
* INC # I9: 6 # H8: 3,7 => UNS
* INC # I9: 6 # I3: 3,7 => UNS
* INC # I9: 6 # I4: 3,7 => UNS
* INC # I9: 6 # I6: 3,7 => UNS
* INC # I9: 6 => UNS
* CNT  24 HDP CHAINS /  24 HYP OPENED

Full list of HDP chains traversed for D5,F5: 5..:

* INC # D5: 5 # D2: 1,8 => UNS
* INC # D5: 5 # E2: 1,8 => UNS
* INC # D5: 5 # B3: 1,8 => UNS
* INC # D5: 5 # B3: 3,5 => UNS
* INC # D5: 5 # D4: 1,8 => UNS
* INC # D5: 5 # D4: 2,3 => UNS
* INC # D5: 5 # F6: 2,6 => UNS
* INC # D5: 5 # F6: 1,7 => UNS
* INC # D5: 5 # F9: 2,6 => UNS
* INC # D5: 5 # F9: 1,4,9 => UNS
* INC # D5: 5 => UNS
* INC # F5: 5 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for A5,B6: 6..:

* INC # A5: 6 # D4: 3,8 => UNS
* INC # A5: 6 # D5: 3,8 => UNS
* INC # A5: 6 # H5: 3,8 => UNS
* INC # A5: 6 # H5: 2,9 => UNS
* INC # A5: 6 # D5: 2,5 => UNS
* INC # A5: 6 # D5: 3,8 => UNS
* INC # A5: 6 # G4: 3,7 => UNS
* INC # A5: 6 # I4: 3,7 => UNS
* INC # A5: 6 # H6: 3,7 => UNS
* INC # A5: 6 # E6: 3,7 => UNS
* INC # A5: 6 # E6: 1,6 => UNS
* INC # A5: 6 # I3: 3,7 => UNS
* INC # A5: 6 # I8: 3,7 => UNS
* INC # A5: 6 # B9: 2,8 => UNS
* INC # A5: 6 # C9: 2,8 => UNS
* INC # A5: 6 # G7: 2,8 => UNS
* INC # A5: 6 # H7: 2,8 => UNS
* INC # A5: 6 # B2: 2,8 => UNS
* INC # A5: 6 # B2: 1,6 => UNS
* INC # A5: 6 => UNS
* INC # B6: 6 # A8: 2,7 => UNS
* INC # B6: 6 # C8: 2,7 => UNS
* INC # B6: 6 # G7: 2,7 => UNS
* INC # B6: 6 # H7: 2,7 => UNS
* INC # B6: 6 # A2: 2,7 => UNS
* INC # B6: 6 # A2: 1,6,9 => UNS
* INC # B6: 6 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for B6,I6: 4..:

* INC # B6: 4 # D4: 3,8 => UNS
* INC # B6: 4 # D5: 3,8 => UNS
* INC # B6: 4 # H5: 3,8 => UNS
* INC # B6: 4 # H5: 2,9 => UNS
* INC # B6: 4 # D5: 2,5 => UNS
* INC # B6: 4 # D5: 3,8 => UNS
* INC # B6: 4 # G4: 3,7 => UNS
* INC # B6: 4 # I4: 3,7 => UNS
* INC # B6: 4 # H6: 3,7 => UNS
* INC # B6: 4 # E6: 3,7 => UNS
* INC # B6: 4 # E6: 1,6 => UNS
* INC # B6: 4 # I3: 3,7 => UNS
* INC # B6: 4 # I8: 3,7 => UNS
* INC # B6: 4 # B9: 2,8 => UNS
* INC # B6: 4 # C9: 2,8 => UNS
* INC # B6: 4 # G7: 2,8 => UNS
* INC # B6: 4 # H7: 2,8 => UNS
* INC # B6: 4 # B2: 2,8 => UNS
* INC # B6: 4 # B2: 1,6 => UNS
* INC # B6: 4 => UNS
* INC # I6: 4 # A8: 2,7 => UNS
* INC # I6: 4 # C8: 2,7 => UNS
* INC # I6: 4 # G7: 2,7 => UNS
* INC # I6: 4 # H7: 2,7 => UNS
* INC # I6: 4 # A2: 2,7 => UNS
* INC # I6: 4 # A2: 1,6,9 => UNS
* INC # I6: 4 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for A5,I5: 4..:

* INC # I5: 4 # D4: 3,8 => UNS
* INC # I5: 4 # D5: 3,8 => UNS
* INC # I5: 4 # H5: 3,8 => UNS
* INC # I5: 4 # H5: 2,9 => UNS
* INC # I5: 4 # D5: 2,5 => UNS
* INC # I5: 4 # D5: 3,8 => UNS
* INC # I5: 4 # G4: 3,7 => UNS
* INC # I5: 4 # I4: 3,7 => UNS
* INC # I5: 4 # H6: 3,7 => UNS
* INC # I5: 4 # E6: 3,7 => UNS
* INC # I5: 4 # E6: 1,6 => UNS
* INC # I5: 4 # I3: 3,7 => UNS
* INC # I5: 4 # I8: 3,7 => UNS
* INC # I5: 4 # B9: 2,8 => UNS
* INC # I5: 4 # C9: 2,8 => UNS
* INC # I5: 4 # G7: 2,8 => UNS
* INC # I5: 4 # H7: 2,8 => UNS
* INC # I5: 4 # B2: 2,8 => UNS
* INC # I5: 4 # B2: 1,6 => UNS
* INC # I5: 4 => UNS
* INC # A5: 4 # A8: 2,7 => UNS
* INC # A5: 4 # C8: 2,7 => UNS
* INC # A5: 4 # G7: 2,7 => UNS
* INC # A5: 4 # H7: 2,7 => UNS
* INC # A5: 4 # A2: 2,7 => UNS
* INC # A5: 4 # A2: 1,6,9 => UNS
* INC # A5: 4 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for I5,I6: 4..:

* INC # I5: 4 # D4: 3,8 => UNS
* INC # I5: 4 # D5: 3,8 => UNS
* INC # I5: 4 # H5: 3,8 => UNS
* INC # I5: 4 # H5: 2,9 => UNS
* INC # I5: 4 # D5: 2,5 => UNS
* INC # I5: 4 # D5: 3,8 => UNS
* INC # I5: 4 # G4: 3,7 => UNS
* INC # I5: 4 # I4: 3,7 => UNS
* INC # I5: 4 # H6: 3,7 => UNS
* INC # I5: 4 # E6: 3,7 => UNS
* INC # I5: 4 # E6: 1,6 => UNS
* INC # I5: 4 # I3: 3,7 => UNS
* INC # I5: 4 # I8: 3,7 => UNS
* INC # I5: 4 # B9: 2,8 => UNS
* INC # I5: 4 # C9: 2,8 => UNS
* INC # I5: 4 # G7: 2,8 => UNS
* INC # I5: 4 # H7: 2,8 => UNS
* INC # I5: 4 # B2: 2,8 => UNS
* INC # I5: 4 # B2: 1,6 => UNS
* INC # I5: 4 => UNS
* INC # I6: 4 # A8: 2,7 => UNS
* INC # I6: 4 # C8: 2,7 => UNS
* INC # I6: 4 # G7: 2,7 => UNS
* INC # I6: 4 # H7: 2,7 => UNS
* INC # I6: 4 # A2: 2,7 => UNS
* INC # I6: 4 # A2: 1,6,9 => UNS
* INC # I6: 4 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for A5,B6: 4..:

* INC # B6: 4 # D4: 3,8 => UNS
* INC # B6: 4 # D5: 3,8 => UNS
* INC # B6: 4 # H5: 3,8 => UNS
* INC # B6: 4 # H5: 2,9 => UNS
* INC # B6: 4 # D5: 2,5 => UNS
* INC # B6: 4 # D5: 3,8 => UNS
* INC # B6: 4 # G4: 3,7 => UNS
* INC # B6: 4 # I4: 3,7 => UNS
* INC # B6: 4 # H6: 3,7 => UNS
* INC # B6: 4 # E6: 3,7 => UNS
* INC # B6: 4 # E6: 1,6 => UNS
* INC # B6: 4 # I3: 3,7 => UNS
* INC # B6: 4 # I8: 3,7 => UNS
* INC # B6: 4 # B9: 2,8 => UNS
* INC # B6: 4 # C9: 2,8 => UNS
* INC # B6: 4 # G7: 2,8 => UNS
* INC # B6: 4 # H7: 2,8 => UNS
* INC # B6: 4 # B2: 2,8 => UNS
* INC # B6: 4 # B2: 1,6 => UNS
* INC # B6: 4 => UNS
* INC # A5: 4 # A8: 2,7 => UNS
* INC # A5: 4 # C8: 2,7 => UNS
* INC # A5: 4 # G7: 2,7 => UNS
* INC # A5: 4 # H7: 2,7 => UNS
* INC # A5: 4 # A2: 2,7 => UNS
* INC # A5: 4 # A2: 1,6,9 => UNS
* INC # A5: 4 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for A4,C5: 9..:

* INC # A4: 9 # B4: 2,3 => UNS
* INC # A4: 9 # C6: 2,3 => UNS
* INC # A4: 9 # D5: 2,3 => UNS
* INC # A4: 9 # H5: 2,3 => UNS
* INC # A4: 9 => UNS
* INC # C5: 9 # B4: 1,2 => UNS
* INC # C5: 9 # C6: 1,2 => UNS
* DIS # C5: 9 # D4: 1,2 => CTR => D4: 3,8
* PRF # C5: 9 + D4: 3,8 # F4: 1,2 => SOL
* STA # C5: 9 + D4: 3,8 + F4: 1,2
* CNT   9 HDP CHAINS /  10 HYP OPENED