Analysis of xx-ph-00009231-cy4-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.........79..8......6....7..5..4....5..6.3.....2...1.5.6..7....4.1..6......3..2 initial

Autosolve

position: 98.........79..8......6....7..5..4....5..6.3.....2...1.5.6..7....4.1..6......3..2 autosolve
Autosolve

Pair Reduction Variants

Pair Reduction Analysis

Pair Reduction Analysis

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

Pair Reduction

Pair Reduction

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

Deep Pair Reduction

Deep Pair Reduction

Time used: 0:00:37.033205

The following important HDP chains were detected:

* DIS # H4: 8 # B4: 3,9 => CTR => B4: 1,2,6
* CNT   1 HDP CHAINS / 102 HYP OPENED

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

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000016

List of important HDP chains detected for H4,G5: 2..:

* DIS # H4: 2 # H6: 7,8 => CTR => H6: 5
* DIS # H4: 2 + H6: 5 # I8: 3,5 => CTR => I8: 9
* DIS # H4: 2 + H6: 5 + I8: 9 # E1: 3,5 => CTR => E1: 4
* PRF # H4: 2 + H6: 5 + I8: 9 + E1: 4 => SOL
* STA H4: 2
* CNT   4 HDP CHAINS /   6 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.........79..8......6....7..5..4....5..6.3.....2...1.5.6..7....4.1..6......3..2 initial
98.........79..8......6....7..5..4....5..6.3.....2...1.5.6..7....4.1..6......3..2 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* PAIRS (1)
G5: 2,9

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
F4,D5: 1.. / F4 = 1  =>  1 pairs (_) / D5 = 1  =>  2 pairs (_)
H4,G5: 2.. / H4 = 2  =>  5 pairs (_) / G5 = 2  =>  1 pairs (_)
E4,D6: 3.. / E4 = 3  =>  2 pairs (_) / D6 = 3  =>  2 pairs (_)
A2,A3: 5.. / A2 = 5  =>  2 pairs (_) / A3 = 5  =>  1 pairs (_)
G6,H6: 5.. / G6 = 5  =>  3 pairs (_) / H6 = 5  =>  4 pairs (_)
F8,E9: 5.. / F8 = 5  =>  2 pairs (_) / E9 = 5  =>  3 pairs (_)
I4,G6: 6.. / I4 = 6  =>  2 pairs (_) / G6 = 6  =>  4 pairs (_)
G1,G6: 6.. / G1 = 6  =>  2 pairs (_) / G6 = 6  =>  4 pairs (_)
I5,H6: 7.. / I5 = 7  =>  1 pairs (_) / H6 = 7  =>  4 pairs (_)
B8,B9: 7.. / B8 = 7  =>  2 pairs (_) / B9 = 7  =>  2 pairs (_)
D3,F3: 8.. / D3 = 8  =>  3 pairs (_) / F3 = 8  =>  2 pairs (_)
* DURATION: 0:00:06.516148  START: 02:30:37.417148  END: 02:30:43.933296 2020-12-01
* CP COUNT: (11)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H4,G5: 2.. / H4 = 2 ==>  0 pairs (*) / G5 = 2  =>  0 pairs (X)
* DURATION: 0:00:12.248594  START: 02:31:25.217848  END: 02:31:37.466442 2020-12-01
* REASONING H4,G5: 2..
* DIS # H4: 2 # H6: 7,8 => CTR => H6: 5
* DIS # H4: 2 + H6: 5 # I8: 3,5 => CTR => I8: 9
* DIS # H4: 2 + H6: 5 + I8: 9 # E1: 3,5 => CTR => E1: 4
* PRF # H4: 2 + H6: 5 + I8: 9 + E1: 4 => SOL
* STA H4: 2
* CNT   4 HDP CHAINS /   6 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

9231;cy4;GP;22;11.30;11.30;10.10

Appendix: Full HDP Chains

A1. Pair Reduction Analysis

Full list of HDP chains traversed:

* INC # H4: 2,9 => UNS
* INC # H4: 8 => UNS
* INC # B5: 2,9 => UNS
* INC # B5: 1,4 => UNS
* INC # G3: 2,9 => UNS
* INC # G3: 1,3,5 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

A2. Pair Reduction

Full list of HDP chains traversed:

* INC # H4: 2,9 => UNS
* INC # H4: 8 => UNS
* INC # B5: 2,9 => UNS
* INC # B5: 1,4 => UNS
* INC # G3: 2,9 => UNS
* INC # G3: 1,3,5 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

A3. Deep Pair Reduction

Full list of HDP chains traversed:

* INC # H4: 2,9 => UNS
* INC # H4: 8 => UNS
* INC # B5: 2,9 => UNS
* INC # B5: 1,4 => UNS
* INC # G3: 2,9 => UNS
* INC # G3: 1,3,5 => UNS
* INC # H4: 2,9 # B4: 2,9 => UNS
* INC # H4: 2,9 # C4: 2,9 => UNS
* INC # H4: 2,9 # H3: 2,9 => UNS
* INC # H4: 2,9 # H3: 1,4,5,7 => UNS
* INC # H4: 2,9 # C4: 6,8 => UNS
* INC # H4: 2,9 # C4: 1,2,3,9 => UNS
* INC # H4: 2,9 # B5: 2,9 => UNS
* INC # H4: 2,9 # B5: 1,4 => UNS
* INC # H4: 2,9 # G3: 2,9 => UNS
* INC # H4: 2,9 # G3: 1,3,5 => UNS
* INC # H4: 2,9 # H6: 7,8 => UNS
* INC # H4: 2,9 # H6: 5 => UNS
* INC # H4: 2,9 # D5: 7,8 => UNS
* INC # H4: 2,9 # E5: 7,8 => UNS
* INC # H4: 2,9 # G1: 5,6 => UNS
* INC # H4: 2,9 # G1: 1,2,3 => UNS
* INC # H4: 2,9 => UNS
* DIS # H4: 8 # B4: 3,9 => CTR => B4: 1,2,6
* INC # H4: 8 + B4: 1,2,6 # C4: 3,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 3,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,2,6 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 3,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,2,6 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 2,3,6 => UNS
* INC # H4: 8 + B4: 1,2,6 # G6: 6,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # G6: 5 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 6,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,2,3 => UNS
* INC # H4: 8 + B4: 1,2,6 # H6: 7,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # H6: 5 => UNS
* INC # H4: 8 + B4: 1,2,6 # E5: 7,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # E5: 4,8 => UNS
* INC # H4: 8 + B4: 1,2,6 # I3: 7,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # I3: 3,4,5 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 3,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,2,6 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 2,3,6 => UNS
* INC # H4: 8 + B4: 1,2,6 # G6: 6,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # G6: 5 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 6,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # C4: 1,2,3 => UNS
* INC # H4: 8 + B4: 1,2,6 # H6: 7,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # H6: 5 => UNS
* INC # H4: 8 + B4: 1,2,6 # E5: 7,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # E5: 4,8 => UNS
* INC # H4: 8 + B4: 1,2,6 # I3: 7,9 => UNS
* INC # H4: 8 + B4: 1,2,6 # I3: 3,4,5 => UNS
* INC # H4: 8 + B4: 1,2,6 => UNS
* INC # B5: 2,9 # B4: 2,9 => UNS
* INC # B5: 2,9 # C4: 2,9 => UNS
* INC # B5: 2,9 # B8: 2,9 => UNS
* INC # B5: 2,9 # B8: 3,7 => UNS
* INC # B5: 2,9 # H4: 2,9 => UNS
* INC # B5: 2,9 # H4: 8 => UNS
* INC # B5: 2,9 # G3: 2,9 => UNS
* INC # B5: 2,9 # G3: 1,3,5 => UNS
* INC # B5: 2,9 # H6: 7,8 => UNS
* INC # B5: 2,9 # H6: 5,9 => UNS
* INC # B5: 2,9 # D5: 7,8 => UNS
* INC # B5: 2,9 # E5: 7,8 => UNS
* INC # B5: 2,9 => UNS
* INC # B5: 1,4 # A5: 1,4 => UNS
* INC # B5: 1,4 # A5: 2,8 => UNS
* INC # B5: 1,4 # D5: 1,4 => UNS
* INC # B5: 1,4 # D5: 7,8 => UNS
* INC # B5: 1,4 # B2: 1,4 => UNS
* INC # B5: 1,4 # B3: 1,4 => UNS
* INC # B5: 1,4 # H4: 2,9 => UNS
* INC # B5: 1,4 # H4: 8 => UNS
* INC # B5: 1,4 # G3: 2,9 => UNS
* INC # B5: 1,4 # G3: 1,3,5 => UNS
* INC # B5: 1,4 => UNS
* INC # G3: 2,9 # H3: 2,9 => UNS
* INC # G3: 2,9 # H3: 1,4,5,7 => UNS
* INC # G3: 2,9 # H4: 2,9 => UNS
* INC # G3: 2,9 # H4: 8 => UNS
* INC # G3: 2,9 # B5: 2,9 => UNS
* INC # G3: 2,9 # B5: 1,4 => UNS
* INC # G3: 2,9 # G1: 5,6 => UNS
* INC # G3: 2,9 # G1: 1,3 => UNS
* INC # G3: 2,9 # I8: 3,5 => UNS
* INC # G3: 2,9 # I8: 8,9 => UNS
* INC # G3: 2,9 # G1: 3,5 => UNS
* INC # G3: 2,9 # G1: 1,6 => UNS
* INC # G3: 2,9 # H9: 1,5 => UNS
* INC # G3: 2,9 # H9: 4,8,9 => UNS
* INC # G3: 2,9 # G1: 1,5 => UNS
* INC # G3: 2,9 # G1: 3,6 => UNS
* INC # G3: 2,9 => UNS
* INC # G3: 1,3,5 # H4: 2,9 => UNS
* INC # G3: 1,3,5 # H4: 8 => UNS
* INC # G3: 1,3,5 # B5: 2,9 => UNS
* INC # G3: 1,3,5 # B5: 1,4 => UNS
* INC # G3: 1,3,5 => UNS
* CNT 102 HDP CHAINS / 102 HYP OPENED

A4. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H4,G5: 2..:

* INC # H4: 2 # C4: 6,8 => UNS
* INC # H4: 2 # C4: 1,3,9 => UNS
* DIS # H4: 2 # H6: 7,8 => CTR => H6: 5
* DIS # H4: 2 + H6: 5 # I8: 3,5 => CTR => I8: 9
* DIS # H4: 2 + H6: 5 + I8: 9 # E1: 3,5 => CTR => E1: 4
* PRF # H4: 2 + H6: 5 + I8: 9 + E1: 4 => SOL
* STA H4: 2
* CNT   6 HDP CHAINS /   6 HYP OPENED