Analysis of xx-ph-02210340-2018_12_06-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..7..6..5......4..8.67.3..9....3..2...........31.........6...71...5.1...96 initial

Autosolve

position: 98.7..6..7..6..5....6.4..8.67.3..9....3..2...........31.........6...71...5.1...96 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

Time used: 0:00:00.000007

List of important HDP chains detected for C9,G9: 7..:

* DIS # G9: 7 # B3: 2,3 => CTR => B3: 1
* DIS # G9: 7 + B3: 1 # A3: 5 => CTR => A3: 2,3
* DIS # G9: 7 + B3: 1 + A3: 2,3 # G7: 4,8 => CTR => G7: 2,3
* DIS # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # B2: 2,4 => CTR => B2: 3
* DIS # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 + B2: 3 => CTR => G9: 2,3,4,8
* STA G9: 2,3,4,8
* CNT   5 HDP CHAINS /  19 HYP OPENED

List of important HDP chains detected for C7,C9: 7..:

* DIS # C7: 7 # B3: 2,3 => CTR => B3: 1
* DIS # C7: 7 + B3: 1 # A3: 5 => CTR => A3: 2,3
* DIS # C7: 7 + B3: 1 + A3: 2,3 # G7: 4,8 => CTR => G7: 2,3
* DIS # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # B2: 2,4 => CTR => B2: 3
* DIS # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 + B2: 3 => CTR => C7: 2,4,8,9
* STA C7: 2,4,8,9
* CNT   5 HDP CHAINS /  19 HYP OPENED

List of important HDP chains detected for I2,I3: 9..:

* DIS # I3: 9 # I5: 4,8 => CTR => I5: 1,5,7
* CNT   1 HDP CHAINS /  45 HYP OPENED

List of important HDP chains detected for G3,I3: 7..:

* DIS # G3: 7 # I5: 4,8 => CTR => I5: 1,5,7
* CNT   1 HDP CHAINS /  27 HYP OPENED

List of important HDP chains detected for E5,E6: 7..:

* DIS # E5: 7 # I5: 4,8 => CTR => I5: 1,5
* CNT   1 HDP CHAINS /  24 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..6..5......4..8.67.3..9....3..2...........31.........6...71...5.1...96 initial
98.7..6..7..6..5....6.4..8.67.3..9....3..2...........31.........6...71...5.1...96 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
C1,A3: 5.. / C1 = 5  =>  2 pairs (_) / A3 = 5  =>  2 pairs (_)
H5,H6: 6.. / H5 = 6  =>  0 pairs (_) / H6 = 6  =>  0 pairs (_)
E7,F7: 6.. / E7 = 6  =>  0 pairs (_) / F7 = 6  =>  2 pairs (_)
E5,H5: 6.. / E5 = 6  =>  0 pairs (_) / H5 = 6  =>  0 pairs (_)
F6,F7: 6.. / F6 = 6  =>  0 pairs (_) / F7 = 6  =>  2 pairs (_)
G3,I3: 7.. / G3 = 7  =>  1 pairs (_) / I3 = 7  =>  1 pairs (_)
E5,E6: 7.. / E5 = 7  =>  1 pairs (_) / E6 = 7  =>  0 pairs (_)
C7,C9: 7.. / C7 = 7  =>  5 pairs (_) / C9 = 7  =>  0 pairs (_)
C9,G9: 7.. / C9 = 7  =>  0 pairs (_) / G9 = 7  =>  5 pairs (_)
E2,F2: 8.. / E2 = 8  =>  2 pairs (_) / F2 = 8  =>  1 pairs (_)
I2,I3: 9.. / I2 = 9  =>  0 pairs (_) / I3 = 9  =>  4 pairs (_)
* DURATION: 0:00:06.677470  START: 18:02:54.413245  END: 18:03:01.090715 2020-11-04
* CP COUNT: (11)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
C9,G9: 7.. / C9 = 7  =>  0 pairs (_) / G9 = 7 ==>  0 pairs (X)
C7,C9: 7.. / C7 = 7 ==>  0 pairs (X) / C9 = 7  =>  0 pairs (_)
I2,I3: 9.. / I2 = 9 ==>  0 pairs (_) / I3 = 9 ==>  4 pairs (_)
C1,A3: 5.. / C1 = 5 ==>  2 pairs (_) / A3 = 5 ==>  2 pairs (_)
E2,F2: 8.. / E2 = 8 ==>  2 pairs (_) / F2 = 8 ==>  1 pairs (_)
F6,F7: 6.. / F6 = 6 ==>  0 pairs (_) / F7 = 6 ==>  2 pairs (_)
E7,F7: 6.. / E7 = 6 ==>  0 pairs (_) / F7 = 6 ==>  2 pairs (_)
G3,I3: 7.. / G3 = 7 ==>  1 pairs (_) / I3 = 7 ==>  1 pairs (_)
E5,E6: 7.. / E5 = 7 ==>  2 pairs (_) / E6 = 7 ==>  0 pairs (_)
E5,H5: 6.. / E5 = 6 ==>  0 pairs (_) / H5 = 6 ==>  0 pairs (_)
H5,H6: 6.. / H5 = 6 ==>  0 pairs (_) / H6 = 6 ==>  0 pairs (_)
* DURATION: 0:01:39.843810  START: 18:03:01.091217  END: 18:04:40.935027 2020-11-04
* REASONING C9,G9: 7..
* DIS # G9: 7 # B3: 2,3 => CTR => B3: 1
* DIS # G9: 7 + B3: 1 # A3: 5 => CTR => A3: 2,3
* DIS # G9: 7 + B3: 1 + A3: 2,3 # G7: 4,8 => CTR => G7: 2,3
* DIS # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # B2: 2,4 => CTR => B2: 3
* DIS # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 + B2: 3 => CTR => G9: 2,3,4,8
* STA G9: 2,3,4,8
* CNT   5 HDP CHAINS /  19 HYP OPENED
* REASONING C7,C9: 7..
* DIS # C7: 7 # B3: 2,3 => CTR => B3: 1
* DIS # C7: 7 + B3: 1 # A3: 5 => CTR => A3: 2,3
* DIS # C7: 7 + B3: 1 + A3: 2,3 # G7: 4,8 => CTR => G7: 2,3
* DIS # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # B2: 2,4 => CTR => B2: 3
* DIS # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 + B2: 3 => CTR => C7: 2,4,8,9
* STA C7: 2,4,8,9
* CNT   5 HDP CHAINS /  19 HYP OPENED
* REASONING I2,I3: 9..
* DIS # I3: 9 # I5: 4,8 => CTR => I5: 1,5,7
* CNT   1 HDP CHAINS /  45 HYP OPENED
* REASONING G3,I3: 7..
* DIS # G3: 7 # I5: 4,8 => CTR => I5: 1,5,7
* CNT   1 HDP CHAINS /  27 HYP OPENED
* REASONING E5,E6: 7..
* DIS # E5: 7 # I5: 4,8 => CTR => I5: 1,5
* CNT   1 HDP CHAINS /  24 HYP OPENED
* DCP COUNT: (11)
* CLUE FOUND

Header Info

2210340;2018_12_06;PAQ;24;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for C9,G9: 7..:

* INC # G9: 7 # H1: 2,3 => UNS
* INC # G9: 7 # H2: 2,3 => UNS
* INC # G9: 7 # A3: 2,3 => UNS
* DIS # G9: 7 # B3: 2,3 => CTR => B3: 1
* INC # G9: 7 + B3: 1 # A3: 2,3 => UNS
* DIS # G9: 7 + B3: 1 # A3: 5 => CTR => A3: 2,3
* INC # G9: 7 + B3: 1 + A3: 2,3 # G7: 2,3 => UNS
* DIS # G9: 7 + B3: 1 + A3: 2,3 # G7: 4,8 => CTR => G7: 2,3
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # H1: 2,3 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # H2: 2,3 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 6,7 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 9 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # A5: 4,8 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # D5: 4,8 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 6,7 => UNS
* INC # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 9 => UNS
* DIS # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # B2: 2,4 => CTR => B2: 3
* DIS # G9: 7 + B3: 1 + A3: 2,3 + G7: 2,3 + B2: 3 => CTR => G9: 2,3,4,8
* INC G9: 2,3,4,8 # C9: 7 => UNS
* STA G9: 2,3,4,8
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for C7,C9: 7..:

* INC # C7: 7 # H1: 2,3 => UNS
* INC # C7: 7 # H2: 2,3 => UNS
* INC # C7: 7 # A3: 2,3 => UNS
* DIS # C7: 7 # B3: 2,3 => CTR => B3: 1
* INC # C7: 7 + B3: 1 # A3: 2,3 => UNS
* DIS # C7: 7 + B3: 1 # A3: 5 => CTR => A3: 2,3
* INC # C7: 7 + B3: 1 + A3: 2,3 # G7: 2,3 => UNS
* DIS # C7: 7 + B3: 1 + A3: 2,3 # G7: 4,8 => CTR => G7: 2,3
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # H1: 2,3 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # H2: 2,3 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 6,7 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 9 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # A5: 4,8 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # D5: 4,8 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 6,7 => UNS
* INC # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # E6: 9 => UNS
* DIS # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 # B2: 2,4 => CTR => B2: 3
* DIS # C7: 7 + B3: 1 + A3: 2,3 + G7: 2,3 + B2: 3 => CTR => C7: 2,4,8,9
* INC C7: 2,4,8,9 # C9: 7 => UNS
* STA C7: 2,4,8,9
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for I2,I3: 9..:

* INC # I3: 9 # E5: 8,9 => UNS
* INC # I3: 9 # E6: 8,9 => UNS
* INC # I3: 9 # E7: 8,9 => UNS
* INC # I3: 9 # E8: 8,9 => UNS
* INC # I3: 9 # F6: 8,9 => UNS
* INC # I3: 9 # F7: 8,9 => UNS
* INC # I3: 9 # E1: 2,5 => UNS
* INC # I3: 9 # E1: 1,3 => UNS
* INC # I3: 9 # A3: 2,5 => UNS
* INC # I3: 9 # A3: 3 => UNS
* INC # I3: 9 # D7: 2,5 => UNS
* INC # I3: 9 # D8: 2,5 => UNS
* INC # I3: 9 # I4: 4,8 => UNS
* DIS # I3: 9 # I5: 4,8 => CTR => I5: 1,5,7
* INC # I3: 9 + I5: 1,5,7 # G6: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # A5: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # D5: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G7: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G9: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # I4: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G6: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # A5: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # D5: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G7: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G9: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # E5: 8,9 => UNS
* INC # I3: 9 + I5: 1,5,7 # E6: 8,9 => UNS
* INC # I3: 9 + I5: 1,5,7 # E7: 8,9 => UNS
* INC # I3: 9 + I5: 1,5,7 # E8: 8,9 => UNS
* INC # I3: 9 + I5: 1,5,7 # F6: 8,9 => UNS
* INC # I3: 9 + I5: 1,5,7 # F7: 8,9 => UNS
* INC # I3: 9 + I5: 1,5,7 # E1: 2,5 => UNS
* INC # I3: 9 + I5: 1,5,7 # E1: 1,3 => UNS
* INC # I3: 9 + I5: 1,5,7 # A3: 2,5 => UNS
* INC # I3: 9 + I5: 1,5,7 # A3: 3 => UNS
* INC # I3: 9 + I5: 1,5,7 # D7: 2,5 => UNS
* INC # I3: 9 + I5: 1,5,7 # D8: 2,5 => UNS
* INC # I3: 9 + I5: 1,5,7 # I4: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G6: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # A5: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # D5: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G7: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 # G9: 4,8 => UNS
* INC # I3: 9 + I5: 1,5,7 => UNS
* INC # I2: 9 => UNS
* CNT  45 HDP CHAINS /  45 HYP OPENED

Full list of HDP chains traversed for C1,A3: 5..:

* INC # C1: 5 # B2: 2,3 => UNS
* INC # C1: 5 # B3: 2,3 => UNS
* INC # C1: 5 # G3: 2,3 => UNS
* INC # C1: 5 # G3: 7 => UNS
* INC # C1: 5 # A8: 2,3 => UNS
* INC # C1: 5 # A9: 2,3 => UNS
* INC # C1: 5 # E1: 1,3 => UNS
* INC # C1: 5 # E2: 1,3 => UNS
* INC # C1: 5 # F2: 1,3 => UNS
* INC # C1: 5 # F3: 1,3 => UNS
* INC # C1: 5 # H1: 1,3 => UNS
* INC # C1: 5 # H1: 2,4 => UNS
* INC # C1: 5 => UNS
* INC # A3: 5 # E2: 2,9 => UNS
* INC # A3: 5 # E2: 1,3,8 => UNS
* INC # A3: 5 # I3: 2,9 => UNS
* INC # A3: 5 # I3: 1,7 => UNS
* INC # A3: 5 # D7: 2,9 => UNS
* INC # A3: 5 # D8: 2,9 => UNS
* INC # A3: 5 # C4: 4,8 => UNS
* INC # A3: 5 # A6: 4,8 => UNS
* INC # A3: 5 # C6: 4,8 => UNS
* INC # A3: 5 # D5: 4,8 => UNS
* INC # A3: 5 # G5: 4,8 => UNS
* INC # A3: 5 # I5: 4,8 => UNS
* INC # A3: 5 # A8: 4,8 => UNS
* INC # A3: 5 # A9: 4,8 => UNS
* INC # A3: 5 => UNS
* CNT  28 HDP CHAINS /  28 HYP OPENED

Full list of HDP chains traversed for E2,F2: 8..:

* INC # E2: 8 # F4: 1,5 => UNS
* INC # E2: 8 # E5: 1,5 => UNS
* INC # E2: 8 # E6: 1,5 => UNS
* INC # E2: 8 # F6: 1,5 => UNS
* INC # E2: 8 # C4: 1,5 => UNS
* INC # E2: 8 # H4: 1,5 => UNS
* INC # E2: 8 # I4: 1,5 => UNS
* INC # E2: 8 # E1: 1,5 => UNS
* INC # E2: 8 # E1: 2,3 => UNS
* INC # E2: 8 # E7: 2,3 => UNS
* INC # E2: 8 # E8: 2,3 => UNS
* INC # E2: 8 # A9: 2,3 => UNS
* INC # E2: 8 # G9: 2,3 => UNS
* INC # E2: 8 # E1: 2,3 => UNS
* INC # E2: 8 # E1: 1,5 => UNS
* INC # E2: 8 => UNS
* INC # F2: 8 # F7: 3,4 => UNS
* INC # F2: 8 # F7: 5,6,9 => UNS
* INC # F2: 8 # A9: 3,4 => UNS
* INC # F2: 8 # G9: 3,4 => UNS
* INC # F2: 8 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for F6,F7: 6..:

* INC # F7: 6 # H5: 6,7 => UNS
* INC # F7: 6 # H5: 1,4,5 => UNS
* INC # F7: 6 # H6: 6,7 => UNS
* INC # F7: 6 # H6: 1,2,4,5 => UNS
* INC # F7: 6 => UNS
* INC # F6: 6 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for E7,F7: 6..:

* INC # F7: 6 # H5: 6,7 => UNS
* INC # F7: 6 # H5: 1,4,5 => UNS
* INC # F7: 6 # H6: 6,7 => UNS
* INC # F7: 6 # H6: 1,2,4,5 => UNS
* INC # F7: 6 => UNS
* INC # E7: 6 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for G3,I3: 7..:

* INC # G3: 7 # I4: 4,8 => UNS
* DIS # G3: 7 # I5: 4,8 => CTR => I5: 1,5,7
* INC # G3: 7 + I5: 1,5,7 # G6: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # A5: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # D5: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G7: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G9: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # I4: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G6: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # A5: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # D5: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G7: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G9: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # I4: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G6: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # A5: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # D5: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G7: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 # G9: 4,8 => UNS
* INC # G3: 7 + I5: 1,5,7 => UNS
* INC # I3: 7 # H1: 2,3 => UNS
* INC # I3: 7 # H2: 2,3 => UNS
* INC # I3: 7 # A3: 2,3 => UNS
* INC # I3: 7 # B3: 2,3 => UNS
* INC # I3: 7 # G7: 2,3 => UNS
* INC # I3: 7 # G9: 2,3 => UNS
* INC # I3: 7 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for E5,E6: 7..:

* INC # E5: 7 # I4: 4,8 => UNS
* DIS # E5: 7 # I5: 4,8 => CTR => I5: 1,5
* INC # E5: 7 + I5: 1,5 # G6: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # A5: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # D5: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G7: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G9: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # I4: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G6: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # A5: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # D5: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G7: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G9: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # I4: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G6: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # A5: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # D5: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G7: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # G9: 4,8 => UNS
* INC # E5: 7 + I5: 1,5 # H4: 1,5 => UNS
* INC # E5: 7 + I5: 1,5 # I4: 1,5 => UNS
* INC # E5: 7 + I5: 1,5 # H6: 1,5 => UNS
* INC # E5: 7 + I5: 1,5 => UNS
* INC # E6: 7 => UNS
* CNT  24 HDP CHAINS /  24 HYP OPENED

Full list of HDP chains traversed for E5,H5: 6..:

* INC # E5: 6 => UNS
* INC # H5: 6 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for H5,H6: 6..:

* INC # H5: 6 => UNS
* INC # H6: 6 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED