Analysis of xx-ph-00698108-12_12_19-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1..2..3....4..5..2...4.6.....6.7.52..5......6...8...9...5.87..4..7..2..5. initial

Autosolve

position: ..5.....1..2..3....4..5..2...4.6.....6.7.52..5......6...85..9...5.87..4..7..2..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

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000011

List of important HDP chains detected for A8,I8: 2..:

* DIS # A8: 2 # I2: 8,9 => CTR => I2: 4,5,6,7
* CNT   1 HDP CHAINS /  54 HYP OPENED

List of important HDP chains detected for I7,I8: 2..:

* DIS # I7: 2 # I2: 8,9 => CTR => I2: 4,5,6,7
* CNT   1 HDP CHAINS /  54 HYP OPENED

List of important HDP chains detected for E5,I5: 4..:

* DIS # E5: 4 # F1: 8,9 => CTR => F1: 2,4,6,7
* CNT   1 HDP CHAINS /  31 HYP OPENED

List of important HDP chains detected for C3,C6: 7..:

* DIS # C3: 7 # A7: 1,3 => CTR => A7: 2,4
* PRF # C3: 7 + A7: 2,4 # H7: 1,3 => SOL
* STA # C3: 7 + A7: 2,4 + H7: 1,3
* CNT   2 HDP CHAINS /   8 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..5..2...4.6.....6.7.52..5......6...8...9...5.87..4..7..2..5. initial
..5.....1..2..3....4..5..2...4.6.....6.7.52..5......6...85..9...5.87..4..7..2..5. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D1,F1: 2.. / D1 = 2  =>  0 pairs (_) / F1 = 2  =>  0 pairs (_)
I7,I8: 2.. / I7 = 2  =>  3 pairs (_) / I8 = 2  =>  0 pairs (_)
A8,I8: 2.. / A8 = 2  =>  3 pairs (_) / I8 = 2  =>  0 pairs (_)
E7,D9: 3.. / E7 = 3  =>  2 pairs (_) / D9 = 3  =>  2 pairs (_)
A7,A9: 4.. / A7 = 4  =>  2 pairs (_) / A9 = 4  =>  0 pairs (_)
E5,I5: 4.. / E5 = 4  =>  2 pairs (_) / I5 = 4  =>  0 pairs (_)
G2,I2: 5.. / G2 = 5  =>  0 pairs (_) / I2 = 5  =>  0 pairs (_)
G4,I4: 5.. / G4 = 5  =>  0 pairs (_) / I4 = 5  =>  0 pairs (_)
G2,G4: 5.. / G2 = 5  =>  0 pairs (_) / G4 = 5  =>  0 pairs (_)
I2,I4: 5.. / I2 = 5  =>  0 pairs (_) / I4 = 5  =>  0 pairs (_)
F1,F3: 7.. / F1 = 7  =>  0 pairs (_) / F3 = 7  =>  0 pairs (_)
A4,C6: 7.. / A4 = 7  =>  1 pairs (_) / C6 = 7  =>  0 pairs (_)
H7,I7: 7.. / H7 = 7  =>  1 pairs (_) / I7 = 7  =>  1 pairs (_)
C3,C6: 7.. / C3 = 7  =>  1 pairs (_) / C6 = 7  =>  0 pairs (_)
G9,I9: 8.. / G9 = 8  =>  1 pairs (_) / I9 = 8  =>  0 pairs (_)
* DURATION: 0:00:10.489505  START: 01:43:17.516081  END: 01:43:28.005586 2020-10-22
* CP COUNT: (15)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
A8,I8: 2.. / A8 = 2 ==>  3 pairs (_) / I8 = 2 ==>  0 pairs (_)
I7,I8: 2.. / I7 = 2 ==>  3 pairs (_) / I8 = 2 ==>  0 pairs (_)
E7,D9: 3.. / E7 = 3 ==>  2 pairs (_) / D9 = 3 ==>  2 pairs (_)
E5,I5: 4.. / E5 = 4 ==>  2 pairs (_) / I5 = 4 ==>  0 pairs (_)
A7,A9: 4.. / A7 = 4 ==>  2 pairs (_) / A9 = 4 ==>  0 pairs (_)
H7,I7: 7.. / H7 = 7 ==>  1 pairs (_) / I7 = 7 ==>  1 pairs (_)
G9,I9: 8.. / G9 = 8 ==>  1 pairs (_) / I9 = 8 ==>  0 pairs (_)
C3,C6: 7.. / C3 = 7 ==>  0 pairs (*) / C6 = 7  =>  0 pairs (X)
* DURATION: 0:01:53.719945  START: 01:43:28.006351  END: 01:45:21.726296 2020-10-22
* REASONING A8,I8: 2..
* DIS # A8: 2 # I2: 8,9 => CTR => I2: 4,5,6,7
* CNT   1 HDP CHAINS /  54 HYP OPENED
* REASONING I7,I8: 2..
* DIS # I7: 2 # I2: 8,9 => CTR => I2: 4,5,6,7
* CNT   1 HDP CHAINS /  54 HYP OPENED
* REASONING E5,I5: 4..
* DIS # E5: 4 # F1: 8,9 => CTR => F1: 2,4,6,7
* CNT   1 HDP CHAINS /  31 HYP OPENED
* REASONING C3,C6: 7..
* DIS # C3: 7 # A7: 1,3 => CTR => A7: 2,4
* PRF # C3: 7 + A7: 2,4 # H7: 1,3 => SOL
* STA # C3: 7 + A7: 2,4 + H7: 1,3
* CNT   2 HDP CHAINS /   8 HYP OPENED
* DCP COUNT: (8)
* SOLUTION FOUND

Header Info

698108;12_12_19;dob;23;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for A8,I8: 2..:

* INC # A8: 2 # H1: 8,9 => UNS
* DIS # A8: 2 # I2: 8,9 => CTR => I2: 4,5,6,7
* INC # A8: 2 + I2: 4,5,6,7 # I3: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H4: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H5: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H1: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I3: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H4: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H5: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A7: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C8: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A9: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C9: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E7: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E7: 4 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B4: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B6: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # G8: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # G9: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I9: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C8: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C8: 1,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I3: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I3: 7,8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H1: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I3: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E2: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H4: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # H5: 8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A7: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C8: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # A9: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C9: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E7: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # E7: 4 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B4: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # B6: 1,3 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # G8: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # G9: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I9: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C8: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # C8: 1,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I3: 3,6 => UNS
* INC # A8: 2 + I2: 4,5,6,7 # I3: 7,8,9 => UNS
* INC # A8: 2 + I2: 4,5,6,7 => UNS
* INC # I8: 2 => UNS
* CNT  54 HDP CHAINS /  54 HYP OPENED

Full list of HDP chains traversed for I7,I8: 2..:

* INC # I7: 2 # H1: 8,9 => UNS
* DIS # I7: 2 # I2: 8,9 => CTR => I2: 4,5,6,7
* INC # I7: 2 + I2: 4,5,6,7 # I3: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H4: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H5: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H1: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I3: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H4: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H5: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A7: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C8: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A9: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C9: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E7: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E7: 4 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B4: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B6: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # G8: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # G9: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I9: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C8: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C8: 1,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I3: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I3: 7,8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H1: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I3: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E2: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H4: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # H5: 8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A7: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C8: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # A9: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C9: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E7: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # E7: 4 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B4: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # B6: 1,3 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # G8: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # G9: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I9: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C8: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # C8: 1,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I3: 3,6 => UNS
* INC # I7: 2 + I2: 4,5,6,7 # I3: 7,8,9 => UNS
* INC # I7: 2 + I2: 4,5,6,7 => UNS
* INC # I8: 2 => UNS
* CNT  54 HDP CHAINS /  54 HYP OPENED

Full list of HDP chains traversed for E7,D9: 3..:

* INC # E7: 3 # A7: 1,2 => UNS
* INC # E7: 3 # A8: 1,2 => UNS
* INC # E7: 3 # B4: 1,2 => UNS
* INC # E7: 3 # B6: 1,2 => UNS
* INC # E7: 3 # H4: 1,7 => UNS
* INC # E7: 3 # H4: 3,8,9 => UNS
* INC # E7: 3 => UNS
* INC # D9: 3 # F7: 1,4 => UNS
* INC # D9: 3 # F9: 1,4 => UNS
* INC # D9: 3 # A7: 1,4 => UNS
* INC # D9: 3 # A7: 2,3,6 => UNS
* INC # D9: 3 # E2: 1,4 => UNS
* INC # D9: 3 # E5: 1,4 => UNS
* INC # D9: 3 # E6: 1,4 => UNS
* INC # D9: 3 # G9: 6,8 => UNS
* INC # D9: 3 # G9: 1 => UNS
* INC # D9: 3 # I2: 6,8 => UNS
* INC # D9: 3 # I3: 6,8 => UNS
* INC # D9: 3 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for E5,I5: 4..:

* DIS # E5: 4 # F1: 8,9 => CTR => F1: 2,4,6,7
* INC # E5: 4 + F1: 2,4,6,7 # E2: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # F3: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # A1: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # B1: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # H1: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # D9: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # D9: 4,6,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # A7: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # B7: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # H7: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E2: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # F3: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # A1: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # B1: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # H1: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # D9: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # D9: 4,6,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # A7: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # B7: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # H7: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 1,3 => UNS
* INC # E5: 4 + F1: 2,4,6,7 # E6: 8,9 => UNS
* INC # E5: 4 + F1: 2,4,6,7 => UNS
* INC # I5: 4 => UNS
* CNT  31 HDP CHAINS /  31 HYP OPENED

Full list of HDP chains traversed for A7,A9: 4..:

* INC # A7: 4 # D9: 1,3 => UNS
* INC # A7: 4 # D9: 4,6,9 => UNS
* INC # A7: 4 # B7: 1,3 => UNS
* INC # A7: 4 # H7: 1,3 => UNS
* INC # A7: 4 # E5: 1,3 => UNS
* INC # A7: 4 # E6: 1,3 => UNS
* INC # A7: 4 # F8: 1,6 => UNS
* INC # A7: 4 # D9: 1,6 => UNS
* INC # A7: 4 # F9: 1,6 => UNS
* INC # A7: 4 # F3: 1,6 => UNS
* INC # A7: 4 # F3: 7,8,9 => UNS
* INC # A7: 4 => UNS
* INC # A9: 4 => UNS
* CNT  13 HDP CHAINS /  13 HYP OPENED

Full list of HDP chains traversed for H7,I7: 7..:

* INC # H7: 7 # H1: 8,9 => UNS
* INC # H7: 7 # I2: 8,9 => UNS
* INC # H7: 7 # I3: 8,9 => UNS
* INC # H7: 7 # A2: 8,9 => UNS
* INC # H7: 7 # B2: 8,9 => UNS
* INC # H7: 7 # E2: 8,9 => UNS
* INC # H7: 7 # H4: 8,9 => UNS
* INC # H7: 7 # H5: 8,9 => UNS
* INC # H7: 7 => UNS
* INC # I7: 7 # G8: 1,3 => UNS
* INC # I7: 7 # G9: 1,3 => UNS
* INC # I7: 7 # A7: 1,3 => UNS
* INC # I7: 7 # B7: 1,3 => UNS
* INC # I7: 7 # E7: 1,3 => UNS
* INC # I7: 7 # H4: 1,3 => UNS
* INC # I7: 7 # H5: 1,3 => UNS
* INC # I7: 7 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for G9,I9: 8..:

* INC # G9: 8 # I7: 3,6 => UNS
* INC # G9: 8 # G8: 3,6 => UNS
* INC # G9: 8 # I8: 3,6 => UNS
* INC # G9: 8 # A9: 3,6 => UNS
* INC # G9: 8 # C9: 3,6 => UNS
* INC # G9: 8 # D9: 3,6 => UNS
* INC # G9: 8 # I3: 3,6 => UNS
* INC # G9: 8 # I3: 7,8,9 => UNS
* INC # G9: 8 => UNS
* INC # I9: 8 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for C3,C6: 7..:

* DIS # C3: 7 # A7: 1,3 => CTR => A7: 2,4
* INC # C3: 7 + A7: 2,4 # A8: 1,3 => UNS
* INC # C3: 7 + A7: 2,4 # C8: 1,3 => UNS
* INC # C3: 7 + A7: 2,4 # A9: 1,3 => UNS
* INC # C3: 7 + A7: 2,4 # C9: 1,3 => UNS
* INC # C3: 7 + A7: 2,4 # E7: 1,3 => UNS
* PRF # C3: 7 + A7: 2,4 # H7: 1,3 => SOL
* STA # C3: 7 + A7: 2,4 + H7: 1,3
* CNT   7 HDP CHAINS /   8 HYP OPENED