Analysis of xx-ph-00028414-2011_12-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6....7.5.........9.7.5...4...3.2...35....95...6.1.......2.4....1....58...9. initial

Autosolve

position: 98.7..6....7.5.....5...9.7.5...4...3.2...35....95...6.19......2.4....1....58...9. 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

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 I1,I8: 5..:

* DIS # I8: 5 # H2: 1,4 => CTR => H2: 2,3,8
* DIS # I8: 5 + H2: 2,3,8 # A8: 3,7 => CTR => A8: 2,6,8
* DIS # I8: 5 + H2: 2,3,8 + A8: 2,6,8 # A9: 3,7 => CTR => A9: 2
* DIS # I8: 5 + H2: 2,3,8 + A8: 2,6,8 + A9: 2 => CTR => I8: 6,7,8
* STA I8: 6,7,8
* CNT   4 HDP CHAINS /   9 HYP OPENED

List of important HDP chains detected for H1,I1: 5..:

* DIS # H1: 5 # H2: 1,4 => CTR => H2: 2,3,8
* DIS # H1: 5 + H2: 2,3,8 # A8: 3,7 => CTR => A8: 2,6,8
* DIS # H1: 5 + H2: 2,3,8 + A8: 2,6,8 # A9: 3,7 => CTR => A9: 2
* DIS # H1: 5 + H2: 2,3,8 + A8: 2,6,8 + A9: 2 => CTR => H1: 1,2,3,4
* STA H1: 1,2,3,4
* CNT   4 HDP CHAINS /   9 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

98.7..6....7.5.........9.7.5...4...3.2...35....95...6.1.......2.4....1....58...9. initial
98.7..6....7.5.....5...9.7.5...4...3.2...35....95...6.19......2.4....1....58...9. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
E9,F9: 1.. / E9 = 1  =>  1 pairs (_) / F9 = 1  =>  1 pairs (_)
A6,B6: 3.. / A6 = 3  =>  2 pairs (_) / B6 = 3  =>  2 pairs (_)
H1,I1: 5.. / H1 = 5  =>  3 pairs (_) / I1 = 5  =>  0 pairs (_)
F7,F8: 5.. / F7 = 5  =>  0 pairs (_) / F8 = 5  =>  1 pairs (_)
F7,H7: 5.. / F7 = 5  =>  0 pairs (_) / H7 = 5  =>  1 pairs (_)
I1,I8: 5.. / I1 = 5  =>  0 pairs (_) / I8 = 5  =>  3 pairs (_)
I8,I9: 6.. / I8 = 6  =>  1 pairs (_) / I9 = 6  =>  1 pairs (_)
F2,E3: 8.. / F2 = 8  =>  0 pairs (_) / E3 = 8  =>  1 pairs (_)
G2,I2: 9.. / G2 = 9  =>  1 pairs (_) / I2 = 9  =>  0 pairs (_)
G4,I5: 9.. / G4 = 9  =>  0 pairs (_) / I5 = 9  =>  1 pairs (_)
D8,E8: 9.. / D8 = 9  =>  1 pairs (_) / E8 = 9  =>  0 pairs (_)
D4,G4: 9.. / D4 = 9  =>  1 pairs (_) / G4 = 9  =>  0 pairs (_)
E5,E8: 9.. / E5 = 9  =>  1 pairs (_) / E8 = 9  =>  0 pairs (_)
G2,G4: 9.. / G2 = 9  =>  1 pairs (_) / G4 = 9  =>  0 pairs (_)
I2,I5: 9.. / I2 = 9  =>  0 pairs (_) / I5 = 9  =>  1 pairs (_)
* DURATION: 0:00:10.354018  START: 06:06:15.303592  END: 06:06:25.657610 2020-12-10
* CP COUNT: (15)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
I1,I8: 5.. / I1 = 5  =>  0 pairs (_) / I8 = 5 ==>  0 pairs (X)
H1,I1: 5.. / H1 = 5 ==>  0 pairs (X) / I1 = 5  =>  0 pairs (_)
A6,B6: 3.. / A6 = 3 ==>  2 pairs (_) / B6 = 3 ==>  2 pairs (_)
I8,I9: 6.. / I8 = 6 ==>  1 pairs (_) / I9 = 6 ==>  1 pairs (_)
E9,F9: 1.. / E9 = 1 ==>  1 pairs (_) / F9 = 1 ==>  1 pairs (_)
I2,I5: 9.. / I2 = 9 ==>  0 pairs (_) / I5 = 9 ==>  1 pairs (_)
G2,G4: 9.. / G2 = 9 ==>  1 pairs (_) / G4 = 9 ==>  0 pairs (_)
E5,E8: 9.. / E5 = 9 ==>  1 pairs (_) / E8 = 9 ==>  0 pairs (_)
D4,G4: 9.. / D4 = 9 ==>  1 pairs (_) / G4 = 9 ==>  0 pairs (_)
D8,E8: 9.. / D8 = 9 ==>  1 pairs (_) / E8 = 9 ==>  0 pairs (_)
G4,I5: 9.. / G4 = 9 ==>  0 pairs (_) / I5 = 9 ==>  1 pairs (_)
G2,I2: 9.. / G2 = 9 ==>  1 pairs (_) / I2 = 9 ==>  0 pairs (_)
F2,E3: 8.. / F2 = 8 ==>  0 pairs (_) / E3 = 8 ==>  1 pairs (_)
F7,H7: 5.. / F7 = 5 ==>  0 pairs (_) / H7 = 5 ==>  1 pairs (_)
F7,F8: 5.. / F7 = 5 ==>  0 pairs (_) / F8 = 5 ==>  1 pairs (_)
* DURATION: 0:01:19.735072  START: 06:06:25.658204  END: 06:07:45.393276 2020-12-10
* REASONING I1,I8: 5..
* DIS # I8: 5 # H2: 1,4 => CTR => H2: 2,3,8
* DIS # I8: 5 + H2: 2,3,8 # A8: 3,7 => CTR => A8: 2,6,8
* DIS # I8: 5 + H2: 2,3,8 + A8: 2,6,8 # A9: 3,7 => CTR => A9: 2
* DIS # I8: 5 + H2: 2,3,8 + A8: 2,6,8 + A9: 2 => CTR => I8: 6,7,8
* STA I8: 6,7,8
* CNT   4 HDP CHAINS /   9 HYP OPENED
* REASONING H1,I1: 5..
* DIS # H1: 5 # H2: 1,4 => CTR => H2: 2,3,8
* DIS # H1: 5 + H2: 2,3,8 # A8: 3,7 => CTR => A8: 2,6,8
* DIS # H1: 5 + H2: 2,3,8 + A8: 2,6,8 # A9: 3,7 => CTR => A9: 2
* DIS # H1: 5 + H2: 2,3,8 + A8: 2,6,8 + A9: 2 => CTR => H1: 1,2,3,4
* STA H1: 1,2,3,4
* CNT   4 HDP CHAINS /   9 HYP OPENED
* DCP COUNT: (15)
* CLUE FOUND

Header Info

28414;2011_12;GP;24;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for I1,I8: 5..:

* DIS # I8: 5 # H2: 1,4 => CTR => H2: 2,3,8
* INC # I8: 5 + H2: 2,3,8 # I2: 1,4 => UNS
* INC # I8: 5 + H2: 2,3,8 # I3: 1,4 => UNS
* INC # I8: 5 + H2: 2,3,8 # C1: 1,4 => UNS
* INC # I8: 5 + H2: 2,3,8 # F1: 1,4 => UNS
* DIS # I8: 5 + H2: 2,3,8 # A8: 3,7 => CTR => A8: 2,6,8
* DIS # I8: 5 + H2: 2,3,8 + A8: 2,6,8 # A9: 3,7 => CTR => A9: 2
* DIS # I8: 5 + H2: 2,3,8 + A8: 2,6,8 + A9: 2 => CTR => I8: 6,7,8
* INC I8: 6,7,8 # I1: 5 => UNS
* STA I8: 6,7,8
* CNT   9 HDP CHAINS /   9 HYP OPENED

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

* DIS # H1: 5 # H2: 1,4 => CTR => H2: 2,3,8
* INC # H1: 5 + H2: 2,3,8 # I2: 1,4 => UNS
* INC # H1: 5 + H2: 2,3,8 # I3: 1,4 => UNS
* INC # H1: 5 + H2: 2,3,8 # C1: 1,4 => UNS
* INC # H1: 5 + H2: 2,3,8 # F1: 1,4 => UNS
* DIS # H1: 5 + H2: 2,3,8 # A8: 3,7 => CTR => A8: 2,6,8
* DIS # H1: 5 + H2: 2,3,8 + A8: 2,6,8 # A9: 3,7 => CTR => A9: 2
* DIS # H1: 5 + H2: 2,3,8 + A8: 2,6,8 + A9: 2 => CTR => H1: 1,2,3,4
* INC H1: 1,2,3,4 # I1: 5 => UNS
* STA H1: 1,2,3,4
* CNT   9 HDP CHAINS /   9 HYP OPENED

Full list of HDP chains traversed for A6,B6: 3..:

* INC # A6: 3 # B4: 1,7 => UNS
* INC # A6: 3 # B4: 6 => UNS
* INC # A6: 3 # E6: 1,7 => UNS
* INC # A6: 3 # F6: 1,7 => UNS
* INC # A6: 3 # I6: 1,7 => UNS
* INC # A6: 3 # H4: 1,8 => UNS
* INC # A6: 3 # I5: 1,8 => UNS
* INC # A6: 3 # I6: 1,8 => UNS
* INC # A6: 3 # C5: 1,8 => UNS
* INC # A6: 3 # E5: 1,8 => UNS
* INC # A6: 3 # H2: 1,8 => UNS
* INC # A6: 3 # H2: 2,3,4 => UNS
* INC # A6: 3 => UNS
* INC # B6: 3 # C3: 1,6 => UNS
* INC # B6: 3 # C3: 2,3,4 => UNS
* INC # B6: 3 # D2: 1,6 => UNS
* INC # B6: 3 # F2: 1,6 => UNS
* INC # B6: 3 # B4: 1,6 => UNS
* INC # B6: 3 # B4: 7 => UNS
* INC # B6: 3 # A8: 6,7 => UNS
* INC # B6: 3 # A9: 6,7 => UNS
* INC # B6: 3 # E9: 6,7 => UNS
* INC # B6: 3 # F9: 6,7 => UNS
* INC # B6: 3 # I9: 6,7 => UNS
* INC # B6: 3 # B4: 6,7 => UNS
* INC # B6: 3 # B4: 1 => UNS
* INC # B6: 3 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

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

* INC # I8: 6 # G7: 4,7 => UNS
* INC # I8: 6 # G9: 4,7 => UNS
* INC # I8: 6 # F9: 4,7 => UNS
* INC # I8: 6 # F9: 1,2,6 => UNS
* INC # I8: 6 # I5: 4,7 => UNS
* INC # I8: 6 # I6: 4,7 => UNS
* INC # I8: 6 => UNS
* INC # I9: 6 # A8: 3,7 => UNS
* INC # I9: 6 # A9: 3,7 => UNS
* INC # I9: 6 # E9: 3,7 => UNS
* INC # I9: 6 # G9: 3,7 => UNS
* INC # I9: 6 # B6: 3,7 => UNS
* INC # I9: 6 # B6: 1 => UNS
* INC # I9: 6 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for E9,F9: 1..:

* INC # E9: 1 # D2: 2,3 => UNS
* INC # E9: 1 # D3: 2,3 => UNS
* INC # E9: 1 # E3: 2,3 => UNS
* INC # E9: 1 # C1: 2,3 => UNS
* INC # E9: 1 # H1: 2,3 => UNS
* INC # E9: 1 # E8: 2,3 => UNS
* INC # E9: 1 # E8: 6,7,9 => UNS
* INC # E9: 1 => UNS
* INC # F9: 1 # D2: 2,4 => UNS
* INC # F9: 1 # F2: 2,4 => UNS
* INC # F9: 1 # D3: 2,4 => UNS
* INC # F9: 1 # C1: 2,4 => UNS
* INC # F9: 1 # H1: 2,4 => UNS
* INC # F9: 1 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for I2,I5: 9..:

* INC # I5: 9 # F4: 1,6 => UNS
* INC # I5: 9 # E5: 1,6 => UNS
* INC # I5: 9 # C5: 1,6 => UNS
* INC # I5: 9 # C5: 4,8 => UNS
* INC # I5: 9 # D2: 1,6 => UNS
* INC # I5: 9 # D3: 1,6 => UNS
* INC # I5: 9 => UNS
* INC # I2: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for G2,G4: 9..:

* INC # G2: 9 # F4: 1,6 => UNS
* INC # G2: 9 # E5: 1,6 => UNS
* INC # G2: 9 # C5: 1,6 => UNS
* INC # G2: 9 # C5: 4,8 => UNS
* INC # G2: 9 # D2: 1,6 => UNS
* INC # G2: 9 # D3: 1,6 => UNS
* INC # G2: 9 => UNS
* INC # G4: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for E5,E8: 9..:

* INC # E5: 9 # D4: 1,6 => UNS
* INC # E5: 9 # F4: 1,6 => UNS
* INC # E5: 9 # C5: 1,6 => UNS
* INC # E5: 9 # C5: 4,8 => UNS
* INC # E5: 9 # D2: 1,6 => UNS
* INC # E5: 9 # D3: 1,6 => UNS
* INC # E5: 9 => UNS
* INC # E8: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for D4,G4: 9..:

* INC # D4: 9 # F4: 1,6 => UNS
* INC # D4: 9 # E5: 1,6 => UNS
* INC # D4: 9 # C5: 1,6 => UNS
* INC # D4: 9 # C5: 4,8 => UNS
* INC # D4: 9 # D2: 1,6 => UNS
* INC # D4: 9 # D3: 1,6 => UNS
* INC # D4: 9 => UNS
* INC # G4: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for D8,E8: 9..:

* INC # D8: 9 # D4: 1,6 => UNS
* INC # D8: 9 # F4: 1,6 => UNS
* INC # D8: 9 # C5: 1,6 => UNS
* INC # D8: 9 # C5: 4,8 => UNS
* INC # D8: 9 # D2: 1,6 => UNS
* INC # D8: 9 # D3: 1,6 => UNS
* INC # D8: 9 => UNS
* INC # E8: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for G4,I5: 9..:

* INC # I5: 9 # F4: 1,6 => UNS
* INC # I5: 9 # E5: 1,6 => UNS
* INC # I5: 9 # C5: 1,6 => UNS
* INC # I5: 9 # C5: 4,8 => UNS
* INC # I5: 9 # D2: 1,6 => UNS
* INC # I5: 9 # D3: 1,6 => UNS
* INC # I5: 9 => UNS
* INC # G4: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for G2,I2: 9..:

* INC # G2: 9 # F4: 1,6 => UNS
* INC # G2: 9 # E5: 1,6 => UNS
* INC # G2: 9 # C5: 1,6 => UNS
* INC # G2: 9 # C5: 4,8 => UNS
* INC # G2: 9 # D2: 1,6 => UNS
* INC # G2: 9 # D3: 1,6 => UNS
* INC # G2: 9 => UNS
* INC # I2: 9 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for F2,E3: 8..:

* INC # E3: 8 # H1: 1,4 => UNS
* INC # E3: 8 # I1: 1,4 => UNS
* INC # E3: 8 # H2: 1,4 => UNS
* INC # E3: 8 # I2: 1,4 => UNS
* INC # E3: 8 # C3: 1,4 => UNS
* INC # E3: 8 # D3: 1,4 => UNS
* INC # E3: 8 # I5: 1,4 => UNS
* INC # E3: 8 # I6: 1,4 => UNS
* INC # E3: 8 => UNS
* INC # F2: 8 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for F7,H7: 5..:

* INC # H7: 5 # G7: 3,8 => UNS
* INC # H7: 5 # G7: 4,7 => UNS
* INC # H7: 5 # A8: 3,8 => UNS
* INC # H7: 5 # C8: 3,8 => UNS
* INC # H7: 5 # H2: 3,8 => UNS
* INC # H7: 5 # H2: 1,2,4 => UNS
* INC # H7: 5 => UNS
* INC # F7: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for F7,F8: 5..:

* INC # F8: 5 # G7: 3,8 => UNS
* INC # F8: 5 # G7: 4,7 => UNS
* INC # F8: 5 # A8: 3,8 => UNS
* INC # F8: 5 # C8: 3,8 => UNS
* INC # F8: 5 # H2: 3,8 => UNS
* INC # F8: 5 # H2: 1,2,4 => UNS
* INC # F8: 5 => UNS
* INC # F7: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED