Analysis of xx-ph-00034638-12_05-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.7...8......5.....4.....3...85..7.......2..1..68..9......1..2......3..4 initial

Autosolve

position: 98.7.....6.7...8......58....4.....3...85..7.......2..1..68..9......1..2......3..4 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

Time used: 0:00:00.000007

List of important HDP chains detected for F7,F8: 5..:

* DIS # F8: 5 # A7: 4,7 => CTR => A7: 1,2,3,5
* DIS # F8: 5 + A7: 1,2,3,5 # E7: 2 => CTR => E7: 4,7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 # I3: 6,9 => CTR => I3: 7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 # E6: 3,4 => CTR => E6: 6,7,9
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 # E5: 6,9 => CTR => E5: 3,4
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 # I4: 2,5 => CTR => I4: 6,9
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 + I4: 6,9 # A4: 2,5 => CTR => A4: 7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 + I4: 6,9 + A4: 7 => CTR => F8: 4,6,7,9
* STA F8: 4,6,7,9
* CNT   8 HDP CHAINS /  29 HYP OPENED

List of important HDP chains detected for B5,B6: 6..:

* DIS # B5: 6 # H6: 4,9 => CTR => H6: 5,6,8
* DIS # B5: 6 + H6: 5,6,8 # I4: 2,9 => CTR => I4: 5,6,8
* DIS # B5: 6 + H6: 5,6,8 + I4: 5,6,8 # E6: 3,4 => CTR => E6: 6,7,8,9
* CNT   3 HDP CHAINS /  36 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...8......5.....4.....3...85..7.......2..1..68..9......1..2......3..4 initial
98.7.....6.7...8......58....4.....3...85..7.......2..1..68..9......1..2......3..4 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
C1,B2: 5.. / C1 = 5  =>  1 pairs (_) / B2 = 5  =>  0 pairs (_)
F7,F8: 5.. / F7 = 5  =>  2 pairs (_) / F8 = 5  =>  2 pairs (_)
B5,B6: 6.. / B5 = 6  =>  2 pairs (_) / B6 = 6  =>  1 pairs (_)
H3,I3: 7.. / H3 = 7  =>  1 pairs (_) / I3 = 7  =>  1 pairs (_)
E4,E6: 8.. / E4 = 8  =>  0 pairs (_) / E6 = 8  =>  0 pairs (_)
I4,H6: 8.. / I4 = 8  =>  0 pairs (_) / H6 = 8  =>  0 pairs (_)
A8,A9: 8.. / A8 = 8  =>  0 pairs (_) / A9 = 8  =>  0 pairs (_)
I8,H9: 8.. / I8 = 8  =>  0 pairs (_) / H9 = 8  =>  0 pairs (_)
E4,I4: 8.. / E4 = 8  =>  0 pairs (_) / I4 = 8  =>  0 pairs (_)
E6,H6: 8.. / E6 = 8  =>  0 pairs (_) / H6 = 8  =>  0 pairs (_)
A8,I8: 8.. / A8 = 8  =>  0 pairs (_) / I8 = 8  =>  0 pairs (_)
A9,H9: 8.. / A9 = 8  =>  0 pairs (_) / H9 = 8  =>  0 pairs (_)
H6,H9: 8.. / H6 = 8  =>  0 pairs (_) / H9 = 8  =>  0 pairs (_)
I4,I8: 8.. / I4 = 8  =>  0 pairs (_) / I8 = 8  =>  0 pairs (_)
* DURATION: 0:00:08.376933  START: 23:21:31.887100  END: 23:21:40.264033 2020-12-14
* CP COUNT: (14)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F7,F8: 5.. / F7 = 5 ==>  2 pairs (_) / F8 = 5 ==>  0 pairs (X)
B5,B6: 6.. / B5 = 6 ==>  4 pairs (_) / B6 = 6 ==>  1 pairs (_)
H3,I3: 7.. / H3 = 7 ==>  1 pairs (_) / I3 = 7 ==>  1 pairs (_)
C1,B2: 5.. / C1 = 5 ==>  1 pairs (_) / B2 = 5 ==>  0 pairs (_)
I4,I8: 8.. / I4 = 8 ==>  0 pairs (_) / I8 = 8 ==>  0 pairs (_)
H6,H9: 8.. / H6 = 8 ==>  0 pairs (_) / H9 = 8 ==>  0 pairs (_)
A9,H9: 8.. / A9 = 8 ==>  0 pairs (_) / H9 = 8 ==>  0 pairs (_)
A8,I8: 8.. / A8 = 8 ==>  0 pairs (_) / I8 = 8 ==>  0 pairs (_)
E6,H6: 8.. / E6 = 8 ==>  0 pairs (_) / H6 = 8 ==>  0 pairs (_)
E4,I4: 8.. / E4 = 8 ==>  0 pairs (_) / I4 = 8 ==>  0 pairs (_)
I8,H9: 8.. / I8 = 8 ==>  0 pairs (_) / H9 = 8 ==>  0 pairs (_)
A8,A9: 8.. / A8 = 8 ==>  0 pairs (_) / A9 = 8 ==>  0 pairs (_)
I4,H6: 8.. / I4 = 8 ==>  0 pairs (_) / H6 = 8 ==>  0 pairs (_)
E4,E6: 8.. / E4 = 8 ==>  0 pairs (_) / E6 = 8 ==>  0 pairs (_)
* DURATION: 0:00:56.435326  START: 23:21:40.264579  END: 23:22:36.699905 2020-12-14
* REASONING F7,F8: 5..
* DIS # F8: 5 # A7: 4,7 => CTR => A7: 1,2,3,5
* DIS # F8: 5 + A7: 1,2,3,5 # E7: 2 => CTR => E7: 4,7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 # I3: 6,9 => CTR => I3: 7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 # E6: 3,4 => CTR => E6: 6,7,9
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 # E5: 6,9 => CTR => E5: 3,4
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 # I4: 2,5 => CTR => I4: 6,9
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 + I4: 6,9 # A4: 2,5 => CTR => A4: 7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 + I4: 6,9 + A4: 7 => CTR => F8: 4,6,7,9
* STA F8: 4,6,7,9
* CNT   8 HDP CHAINS /  29 HYP OPENED
* REASONING B5,B6: 6..
* DIS # B5: 6 # H6: 4,9 => CTR => H6: 5,6,8
* DIS # B5: 6 + H6: 5,6,8 # I4: 2,9 => CTR => I4: 5,6,8
* DIS # B5: 6 + H6: 5,6,8 + I4: 5,6,8 # E6: 3,4 => CTR => E6: 6,7,8,9
* CNT   3 HDP CHAINS /  36 HYP OPENED
* DCP COUNT: (14)
* CLUE FOUND

Header Info

34638;12_05;GP;21;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

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

* INC # F7: 5 # H9: 1,7 => UNS
* INC # F7: 5 # H9: 5,6,8 => UNS
* INC # F7: 5 # A7: 1,7 => UNS
* INC # F7: 5 # B7: 1,7 => UNS
* INC # F7: 5 # H3: 1,7 => UNS
* INC # F7: 5 # H3: 4,6,9 => UNS
* INC # F7: 5 # I8: 3,7 => UNS
* INC # F7: 5 # I8: 5,6,8 => UNS
* INC # F7: 5 # A7: 3,7 => UNS
* INC # F7: 5 # B7: 3,7 => UNS
* INC # F7: 5 # I3: 3,7 => UNS
* INC # F7: 5 # I3: 2,6,9 => UNS
* INC # F7: 5 => UNS
* INC # F8: 5 # E7: 4,7 => UNS
* INC # F8: 5 # E7: 2 => UNS
* DIS # F8: 5 # A7: 4,7 => CTR => A7: 1,2,3,5
* INC # F8: 5 + A7: 1,2,3,5 # E7: 4,7 => UNS
* DIS # F8: 5 + A7: 1,2,3,5 # E7: 2 => CTR => E7: 4,7
* INC # F8: 5 + A7: 1,2,3,5 + E7: 4,7 # E1: 3,4 => UNS
* INC # F8: 5 + A7: 1,2,3,5 + E7: 4,7 # E2: 3,4 => UNS
* INC # F8: 5 + A7: 1,2,3,5 + E7: 4,7 # H3: 6,9 => UNS
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 # I3: 6,9 => CTR => I3: 7
* INC # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 # E5: 3,4 => UNS
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 # E6: 3,4 => CTR => E6: 6,7,9
* INC # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 # E5: 3,4 => UNS
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 # E5: 6,9 => CTR => E5: 3,4
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 # I4: 2,5 => CTR => I4: 6,9
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 + I4: 6,9 # A4: 2,5 => CTR => A4: 7
* DIS # F8: 5 + A7: 1,2,3,5 + E7: 4,7 + I3: 7 + E6: 6,7,9 + E5: 3,4 + I4: 6,9 + A4: 7 => CTR => F8: 4,6,7,9
* STA F8: 4,6,7,9
* CNT  29 HDP CHAINS /  29 HYP OPENED

Full list of HDP chains traversed for B5,B6: 6..:

* DIS # B5: 6 # H6: 4,9 => CTR => H6: 5,6,8
* INC # B5: 6 + H6: 5,6,8 # E5: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 # F5: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 # H2: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 # H3: 4,9 => UNS
* DIS # B5: 6 + H6: 5,6,8 # I4: 2,9 => CTR => I4: 5,6,8
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 # I2: 2,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 # I3: 2,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 # D6: 3,4 => UNS
* DIS # B5: 6 + H6: 5,6,8 + I4: 5,6,8 # E6: 3,4 => CTR => E6: 6,7,8,9
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # D6: 3,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # D6: 6,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # E1: 3,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # E2: 3,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # F1: 1,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # F2: 1,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # H2: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # H3: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # I2: 2,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # I3: 2,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # D6: 3,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # D6: 6,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # E1: 3,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # E2: 3,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # F1: 1,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # F2: 1,4 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # H2: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # H3: 4,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # I2: 2,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 # I3: 2,9 => UNS
* INC # B5: 6 + H6: 5,6,8 + I4: 5,6,8 + E6: 6,7,8,9 => UNS
* INC # B6: 6 # H6: 4,5 => UNS
* INC # B6: 6 # H6: 8,9 => UNS
* INC # B6: 6 # G1: 4,5 => UNS
* INC # B6: 6 # G1: 1,2,3,6 => UNS
* INC # B6: 6 => UNS
* CNT  36 HDP CHAINS /  36 HYP OPENED

Full list of HDP chains traversed for H3,I3: 7..:

* INC # H3: 7 # G9: 1,5 => UNS
* INC # H3: 7 # H9: 1,5 => UNS
* INC # H3: 7 # A7: 1,5 => UNS
* INC # H3: 7 # B7: 1,5 => UNS
* INC # H3: 7 # H1: 1,5 => UNS
* INC # H3: 7 # H2: 1,5 => UNS
* INC # H3: 7 => UNS
* INC # I3: 7 # G8: 3,5 => UNS
* INC # I3: 7 # I8: 3,5 => UNS
* INC # I3: 7 # A7: 3,5 => UNS
* INC # I3: 7 # B7: 3,5 => UNS
* INC # I3: 7 # I1: 3,5 => UNS
* INC # I3: 7 # I2: 3,5 => UNS
* INC # I3: 7 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for C1,B2: 5..:

* INC # C1: 5 # B5: 3,9 => UNS
* INC # C1: 5 # B6: 3,9 => UNS
* INC # C1: 5 # D6: 3,9 => UNS
* INC # C1: 5 # E6: 3,9 => UNS
* INC # C1: 5 # C8: 3,9 => UNS
* INC # C1: 5 # C8: 4 => UNS
* INC # C1: 5 => UNS
* INC # B2: 5 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for I4,I8: 8..:

* INC # I4: 8 => UNS
* INC # I8: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for H6,H9: 8..:

* INC # H6: 8 => UNS
* INC # H9: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for A9,H9: 8..:

* INC # A9: 8 => UNS
* INC # H9: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for A8,I8: 8..:

* INC # A8: 8 => UNS
* INC # I8: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for E6,H6: 8..:

* INC # E6: 8 => UNS
* INC # H6: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for E4,I4: 8..:

* INC # E4: 8 => UNS
* INC # I4: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for I8,H9: 8..:

* INC # I8: 8 => UNS
* INC # H9: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for A8,A9: 8..:

* INC # A8: 8 => UNS
* INC # A9: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for I4,H6: 8..:

* INC # I4: 8 => UNS
* INC # H6: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for E4,E6: 8..:

* INC # E4: 8 => UNS
* INC # E6: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED