Analysis of xx-ph-00054379-12_10-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7..6..5...8......4..5.3.3......9..2...9.....9.5.4..1...6...7..5..2.4....5..1.. initial

Autosolve

position: 98.7..6..5...8......4..5.3.35.....9.42...9.....9.5.4..1...6...7..5..2.4....5..1.. 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

Deep Constraint Pair Analysis

Time used: 0:00:00.000008

List of important HDP chains detected for G3,I3: 8..:

* DIS # G3: 8 # G7: 3,9 => CTR => G7: 2,5
* CNT   1 HDP CHAINS /  27 HYP OPENED

List of important HDP chains detected for B7,B9: 4..:

* DIS # B7: 4 # D7: 3,8 => CTR => D7: 9
* DIS # B7: 4 + D7: 9 # G7: 3,8 => CTR => G7: 2,5
* CNT   2 HDP CHAINS /  29 HYP OPENED

See Appendix: Full HDP Chains for full list of HDP chains.

Very Deep Constraint Pair Analysis

Very Deep Constraint Pair Analysis

Time used: 0:00:22.040762

List of important HDP chains detected for A3,A9: 2..:

* DIS # A9: 2 # B2: 6,7 # D2: 2,9 => CTR => D2: 1,3,4,6
* DIS # A9: 2 # B2: 6,7 + D2: 1,3,4,6 # D3: 2,9 => CTR => D3: 6
* PRF # A9: 2 # B2: 6,7 + D2: 1,3,4,6 + D3: 6 => SOL
* STA # A9: 2 + B2: 6,7
* CNT   3 HDP CHAINS /  25 HYP OPENED

See Appendix: Full HDP Chains for full list of HDP chains.

Details

This sudoku is very deep. Here is some information that may be helpful on how to proceed.

Positions

98.7..6..5...8......4..5.3.3......9..2...9.....9.5.4..1...6...7..5..2.4....5..1.. initial
98.7..6..5...8......4..5.3.35.....9.42...9.....9.5.4..1...6...7..5..2.4....5..1.. autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D8,E8: 1.. / D8 = 1  =>  0 pairs (_) / E8 = 1  =>  2 pairs (_)
A3,A9: 2.. / A3 = 2  =>  2 pairs (_) / A9 = 2  =>  5 pairs (_)
I1,I2: 4.. / I1 = 4  =>  2 pairs (_) / I2 = 4  =>  0 pairs (_)
B7,B9: 4.. / B7 = 4  =>  1 pairs (_) / B9 = 4  =>  1 pairs (_)
H1,I1: 5.. / H1 = 5  =>  1 pairs (_) / I1 = 5  =>  1 pairs (_)
G7,H7: 5.. / G7 = 5  =>  1 pairs (_) / H7 = 5  =>  1 pairs (_)
G5,G7: 5.. / G5 = 5  =>  1 pairs (_) / G7 = 5  =>  1 pairs (_)
I1,I5: 5.. / I1 = 5  =>  1 pairs (_) / I5 = 5  =>  1 pairs (_)
G3,I3: 8.. / G3 = 8  =>  2 pairs (_) / I3 = 8  =>  0 pairs (_)
* DURATION: 0:00:05.595157  START: 10:12:42.150352  END: 10:12:47.745509 2020-10-27
* CP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A3,A9: 2.. / A3 = 2 ==>  2 pairs (_) / A9 = 2 ==>  5 pairs (_)
G3,I3: 8.. / G3 = 8 ==>  3 pairs (_) / I3 = 8 ==>  0 pairs (_)
I1,I2: 4.. / I1 = 4 ==>  2 pairs (_) / I2 = 4 ==>  0 pairs (_)
D8,E8: 1.. / D8 = 1 ==>  0 pairs (_) / E8 = 1 ==>  2 pairs (_)
I1,I5: 5.. / I1 = 5 ==>  1 pairs (_) / I5 = 5 ==>  1 pairs (_)
G5,G7: 5.. / G5 = 5 ==>  1 pairs (_) / G7 = 5 ==>  1 pairs (_)
G7,H7: 5.. / G7 = 5 ==>  1 pairs (_) / H7 = 5 ==>  1 pairs (_)
H1,I1: 5.. / H1 = 5 ==>  1 pairs (_) / I1 = 5 ==>  1 pairs (_)
B7,B9: 4.. / B7 = 4 ==>  2 pairs (_) / B9 = 4 ==>  1 pairs (_)
* DURATION: 0:01:13.902575  START: 10:12:47.746056  END: 10:14:01.648631 2020-10-27
* REASONING G3,I3: 8..
* DIS # G3: 8 # G7: 3,9 => CTR => G7: 2,5
* CNT   1 HDP CHAINS /  27 HYP OPENED
* REASONING B7,B9: 4..
* DIS # B7: 4 # D7: 3,8 => CTR => D7: 9
* DIS # B7: 4 + D7: 9 # G7: 3,8 => CTR => G7: 2,5
* CNT   2 HDP CHAINS /  29 HYP OPENED
* DCP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
A3,A9: 2.. / A3 = 2  =>  0 pairs (X) / A9 = 2 ==>  0 pairs (*)
* DURATION: 0:00:22.038054  START: 10:14:01.747680  END: 10:14:23.785734 2020-10-27
* REASONING A3,A9: 2..
* DIS # A9: 2 # B2: 6,7 # D2: 2,9 => CTR => D2: 1,3,4,6
* DIS # A9: 2 # B2: 6,7 + D2: 1,3,4,6 # D3: 2,9 => CTR => D3: 6
* PRF # A9: 2 # B2: 6,7 + D2: 1,3,4,6 + D3: 6 => SOL
* STA # A9: 2 + B2: 6,7
* CNT   3 HDP CHAINS /  25 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

54379;12_10;GP;24;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A3,A9: 2..:

* INC # A9: 2 # B2: 6,7 => UNS
* INC # A9: 2 # C2: 6,7 => UNS
* INC # A9: 2 # B3: 6,7 => UNS
* INC # A9: 2 # A6: 6,7 => UNS
* INC # A9: 2 # A8: 6,7 => UNS
* INC # A9: 2 # C9: 3,8 => UNS
* INC # A9: 2 # C9: 6,7 => UNS
* INC # A9: 2 # D7: 3,8 => UNS
* INC # A9: 2 # F7: 3,8 => UNS
* INC # A9: 2 # H1: 2,5 => UNS
* INC # A9: 2 # H1: 1 => UNS
* INC # A9: 2 # I8: 6,8 => UNS
* INC # A9: 2 # I9: 6,8 => UNS
* INC # A9: 2 # C9: 6,8 => UNS
* INC # A9: 2 # C9: 3,7 => UNS
* INC # A9: 2 # H5: 6,8 => UNS
* INC # A9: 2 # H6: 6,8 => UNS
* INC # A9: 2 => UNS
* INC # A3: 2 # B2: 1,3 => UNS
* INC # A3: 2 # C2: 1,3 => UNS
* INC # A3: 2 # E1: 1,3 => UNS
* INC # A3: 2 # F1: 1,3 => UNS
* INC # A3: 2 # D2: 1,9 => UNS
* INC # A3: 2 # D3: 1,9 => UNS
* INC # A3: 2 # I3: 1,9 => UNS
* INC # A3: 2 # I3: 8 => UNS
* INC # A3: 2 # E8: 1,9 => UNS
* INC # A3: 2 # E8: 3,7 => UNS
* INC # A3: 2 => UNS
* CNT  29 HDP CHAINS /  29 HYP OPENED

Full list of HDP chains traversed for G3,I3: 8..:

* INC # G3: 8 # H6: 2,7 => UNS
* INC # G3: 8 # H6: 1,6,8 => UNS
* INC # G3: 8 # E4: 2,7 => UNS
* INC # G3: 8 # E4: 1,4 => UNS
* INC # G3: 8 # G2: 2,7 => UNS
* INC # G3: 8 # G2: 9 => UNS
* DIS # G3: 8 # G7: 3,9 => CTR => G7: 2,5
* INC # G3: 8 + G7: 2,5 # I8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # I9: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # B8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # D8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # E8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # H6: 2,7 => UNS
* INC # G3: 8 + G7: 2,5 # H6: 1,6,8 => UNS
* INC # G3: 8 + G7: 2,5 # E4: 2,7 => UNS
* INC # G3: 8 + G7: 2,5 # E4: 1,4 => UNS
* INC # G3: 8 + G7: 2,5 # G2: 2,7 => UNS
* INC # G3: 8 + G7: 2,5 # G2: 9 => UNS
* INC # G3: 8 + G7: 2,5 # H7: 2,5 => UNS
* INC # G3: 8 + G7: 2,5 # H7: 8 => UNS
* INC # G3: 8 + G7: 2,5 # I8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # I9: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # B8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # D8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 # E8: 3,9 => UNS
* INC # G3: 8 + G7: 2,5 => UNS
* INC # I3: 8 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for I1,I2: 4..:

* INC # I1: 4 # E1: 1,3 => UNS
* INC # I1: 4 # D2: 1,3 => UNS
* INC # I1: 4 # F2: 1,3 => UNS
* INC # I1: 4 # C1: 1,3 => UNS
* INC # I1: 4 # C1: 2 => UNS
* INC # I1: 4 # F6: 1,3 => UNS
* INC # I1: 4 # F6: 6,7,8 => UNS
* INC # I1: 4 # H9: 2,8 => UNS
* INC # I1: 4 # I9: 2,8 => UNS
* INC # I1: 4 # C7: 2,8 => UNS
* INC # I1: 4 # C7: 3 => UNS
* INC # I1: 4 # H6: 2,8 => UNS
* INC # I1: 4 # H6: 1,6,7 => UNS
* INC # I1: 4 => UNS
* INC # I2: 4 => UNS
* CNT  15 HDP CHAINS /  15 HYP OPENED

Full list of HDP chains traversed for D8,E8: 1..:

* INC # E8: 1 # D2: 2,9 => UNS
* INC # E8: 1 # D3: 2,9 => UNS
* INC # E8: 1 # G3: 2,9 => UNS
* INC # E8: 1 # I3: 2,9 => UNS
* INC # E8: 1 # F6: 3,7 => UNS
* INC # E8: 1 # F6: 1,6,8 => UNS
* INC # E8: 1 # G5: 3,7 => UNS
* INC # E8: 1 # G5: 5,8 => UNS
* INC # E8: 1 # E9: 3,7 => UNS
* INC # E8: 1 # E9: 4,9 => UNS
* INC # E8: 1 => UNS
* INC # D8: 1 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for I1,I5: 5..:

* INC # I1: 5 # H2: 1,2 => UNS
* INC # I1: 5 # I3: 1,2 => UNS
* INC # I1: 5 # C1: 1,2 => UNS
* INC # I1: 5 # E1: 1,2 => UNS
* INC # I1: 5 # H6: 1,2 => UNS
* INC # I1: 5 # H6: 6,7,8 => UNS
* INC # I1: 5 => UNS
* INC # I5: 5 # H9: 2,8 => UNS
* INC # I5: 5 # I9: 2,8 => UNS
* INC # I5: 5 # C7: 2,8 => UNS
* INC # I5: 5 # C7: 3 => UNS
* INC # I5: 5 # H6: 2,8 => UNS
* INC # I5: 5 # H6: 1,6,7 => UNS
* INC # I5: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for G5,G7: 5..:

* INC # G5: 5 # H2: 1,2 => UNS
* INC # G5: 5 # I3: 1,2 => UNS
* INC # G5: 5 # C1: 1,2 => UNS
* INC # G5: 5 # E1: 1,2 => UNS
* INC # G5: 5 # H6: 1,2 => UNS
* INC # G5: 5 # H6: 6,7,8 => UNS
* INC # G5: 5 => UNS
* INC # G7: 5 # H9: 2,8 => UNS
* INC # G7: 5 # I9: 2,8 => UNS
* INC # G7: 5 # C7: 2,8 => UNS
* INC # G7: 5 # C7: 3 => UNS
* INC # G7: 5 # H6: 2,8 => UNS
* INC # G7: 5 # H6: 1,6,7 => UNS
* INC # G7: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for G7,H7: 5..:

* INC # G7: 5 # H9: 2,8 => UNS
* INC # G7: 5 # I9: 2,8 => UNS
* INC # G7: 5 # C7: 2,8 => UNS
* INC # G7: 5 # C7: 3 => UNS
* INC # G7: 5 # H6: 2,8 => UNS
* INC # G7: 5 # H6: 1,6,7 => UNS
* INC # G7: 5 => UNS
* INC # H7: 5 # H2: 1,2 => UNS
* INC # H7: 5 # I3: 1,2 => UNS
* INC # H7: 5 # C1: 1,2 => UNS
* INC # H7: 5 # E1: 1,2 => UNS
* INC # H7: 5 # H6: 1,2 => UNS
* INC # H7: 5 # H6: 6,7,8 => UNS
* INC # H7: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for H1,I1: 5..:

* INC # H1: 5 # H9: 2,8 => UNS
* INC # H1: 5 # I9: 2,8 => UNS
* INC # H1: 5 # C7: 2,8 => UNS
* INC # H1: 5 # C7: 3 => UNS
* INC # H1: 5 # H6: 2,8 => UNS
* INC # H1: 5 # H6: 1,6,7 => UNS
* INC # H1: 5 => UNS
* INC # I1: 5 # H2: 1,2 => UNS
* INC # I1: 5 # I3: 1,2 => UNS
* INC # I1: 5 # C1: 1,2 => UNS
* INC # I1: 5 # E1: 1,2 => UNS
* INC # I1: 5 # H6: 1,2 => UNS
* INC # I1: 5 # H6: 6,7,8 => UNS
* INC # I1: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for B7,B9: 4..:

* DIS # B7: 4 # D7: 3,8 => CTR => D7: 9
* INC # B7: 4 + D7: 9 # D8: 3,8 => UNS
* INC # B7: 4 + D7: 9 # F9: 3,8 => UNS
* INC # B7: 4 + D7: 9 # C7: 3,8 => UNS
* DIS # B7: 4 + D7: 9 # G7: 3,8 => CTR => G7: 2,5
* INC # B7: 4 + D7: 9 + G7: 2,5 # C7: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # C7: 2 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F6: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F6: 1,6,7 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # D8: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F9: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # C7: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # C7: 2 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F6: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F6: 1,6,7 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # D8: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F9: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # C7: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # C7: 2 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F6: 3,8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # F6: 1,6,7 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # H7: 2,5 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 # H7: 8 => UNS
* INC # B7: 4 + D7: 9 + G7: 2,5 => UNS
* INC # B9: 4 # B8: 3,9 => UNS
* INC # B9: 4 # B8: 6,7 => UNS
* INC # B9: 4 # D7: 3,9 => UNS
* INC # B9: 4 # G7: 3,9 => UNS
* INC # B9: 4 => UNS
* CNT  29 HDP CHAINS /  29 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for A3,A9: 2..:

* INC # A9: 2 # B2: 6,7 => UNS
* INC # A9: 2 # C2: 6,7 => UNS
* INC # A9: 2 # B3: 6,7 => UNS
* INC # A9: 2 # A6: 6,7 => UNS
* INC # A9: 2 # A8: 6,7 => UNS
* INC # A9: 2 # C9: 3,8 => UNS
* INC # A9: 2 # C9: 6,7 => UNS
* INC # A9: 2 # D7: 3,8 => UNS
* INC # A9: 2 # F7: 3,8 => UNS
* INC # A9: 2 # H1: 2,5 => UNS
* INC # A9: 2 # H1: 1 => UNS
* INC # A9: 2 # I8: 6,8 => UNS
* INC # A9: 2 # I9: 6,8 => UNS
* INC # A9: 2 # C9: 6,8 => UNS
* INC # A9: 2 # C9: 3,7 => UNS
* INC # A9: 2 # H5: 6,8 => UNS
* INC # A9: 2 # H6: 6,8 => UNS
* INC # A9: 2 # B2: 6,7 # E1: 2,3 => UNS
* INC # A9: 2 # B2: 6,7 # E1: 1,4 => UNS
* INC # A9: 2 # B2: 6,7 # D2: 2,3 => UNS
* INC # A9: 2 # B2: 6,7 # D2: 1,4,6,9 => UNS
* DIS # A9: 2 # B2: 6,7 # D2: 2,9 => CTR => D2: 1,3,4,6
* DIS # A9: 2 # B2: 6,7 + D2: 1,3,4,6 # D3: 2,9 => CTR => D3: 6
* PRF # A9: 2 # B2: 6,7 + D2: 1,3,4,6 + D3: 6 => SOL
* STA # A9: 2 + B2: 6,7
* CNT  24 HDP CHAINS /  25 HYP OPENED