Analysis of xx-ph-00001213-H288-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.......6.9.7.......5...8...6.9....74...3...2.....1.2..7.8.....3....4.....1.5. initial

Autosolve

position: 98.7.......6.9.7.......5...8...6.9....74...3...2.....1.2..7.8.....3....4.....1.5. autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000008

List of important HDP chains detected for F6,H6: 7..:

* DIS # H6: 7 # H3: 2,4 => CTR => H3: 1,6,8,9
* DIS # H6: 7 + H3: 1,6,8,9 # G1: 1,2 => CTR => G1: 3,4,5
* CNT   2 HDP CHAINS /  45 HYP OPENED

List of important HDP chains detected for F4,F6: 7..:

* DIS # F4: 7 # H3: 2,4 => CTR => H3: 1,6,8,9
* DIS # F4: 7 + H3: 1,6,8,9 # G1: 1,2 => CTR => G1: 3,4,5
* CNT   2 HDP CHAINS /  45 HYP OPENED

List of important HDP chains detected for D7,E8: 5..:

* DIS # E8: 5 # F7: 6,9 => CTR => F7: 4
* PRF # E8: 5 + F7: 4 # H7: 6,9 => SOL
* STA # E8: 5 + F7: 4 + H7: 6,9
* CNT   2 HDP CHAINS /  23 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.......6.9.7.......5...8...6.9....74...3...2.....1.2..7.8.....3....4.....1.5. initial
98.7.......6.9.7.......5...8...6.9....74...3...2.....1.2..7.8.....3....4.....1.5. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D4,E5: 1.. / D4 = 1  =>  1 pairs (_) / E5 = 1  =>  2 pairs (_)
A2,A3: 2.. / A2 = 2  =>  1 pairs (_) / A3 = 2  =>  0 pairs (_)
F7,E9: 4.. / F7 = 4  =>  1 pairs (_) / E9 = 4  =>  1 pairs (_)
D7,E8: 5.. / D7 = 5  =>  3 pairs (_) / E8 = 5  =>  2 pairs (_)
F1,D3: 6.. / F1 = 6  =>  1 pairs (_) / D3 = 6  =>  1 pairs (_)
A3,B3: 7.. / A3 = 7  =>  1 pairs (_) / B3 = 7  =>  0 pairs (_)
F4,F6: 7.. / F4 = 7  =>  5 pairs (_) / F6 = 7  =>  1 pairs (_)
H8,I9: 7.. / H8 = 7  =>  2 pairs (_) / I9 = 7  =>  1 pairs (_)
F6,H6: 7.. / F6 = 7  =>  1 pairs (_) / H6 = 7  =>  5 pairs (_)
I4,I9: 7.. / I4 = 7  =>  2 pairs (_) / I9 = 7  =>  1 pairs (_)
I5,H6: 8.. / I5 = 8  =>  1 pairs (_) / H6 = 8  =>  3 pairs (_)
C8,C9: 8.. / C8 = 8  =>  1 pairs (_) / C9 = 8  =>  1 pairs (_)
H3,I3: 9.. / H3 = 9  =>  1 pairs (_) / I3 = 9  =>  1 pairs (_)
B5,B6: 9.. / B5 = 9  =>  1 pairs (_) / B6 = 9  =>  2 pairs (_)
B5,F5: 9.. / B5 = 9  =>  1 pairs (_) / F5 = 9  =>  2 pairs (_)
* DURATION: 0:00:10.870037  START: 07:38:14.527458  END: 07:38:25.397495 2020-11-26
* CP COUNT: (15)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F6,H6: 7.. / F6 = 7 ==>  1 pairs (_) / H6 = 7 ==>  5 pairs (_)
F4,F6: 7.. / F4 = 7 ==>  5 pairs (_) / F6 = 7 ==>  1 pairs (_)
D7,E8: 5.. / D7 = 5 ==>  3 pairs (_) / E8 = 5 ==>  0 pairs (*)
* DURATION: 0:01:12.695276  START: 07:38:25.398330  END: 07:39:38.093606 2020-11-26
* REASONING F6,H6: 7..
* DIS # H6: 7 # H3: 2,4 => CTR => H3: 1,6,8,9
* DIS # H6: 7 + H3: 1,6,8,9 # G1: 1,2 => CTR => G1: 3,4,5
* CNT   2 HDP CHAINS /  45 HYP OPENED
* REASONING F4,F6: 7..
* DIS # F4: 7 # H3: 2,4 => CTR => H3: 1,6,8,9
* DIS # F4: 7 + H3: 1,6,8,9 # G1: 1,2 => CTR => G1: 3,4,5
* CNT   2 HDP CHAINS /  45 HYP OPENED
* REASONING D7,E8: 5..
* DIS # E8: 5 # F7: 6,9 => CTR => F7: 4
* PRF # E8: 5 + F7: 4 # H7: 6,9 => SOL
* STA # E8: 5 + F7: 4 + H7: 6,9
* CNT   2 HDP CHAINS /  23 HYP OPENED
* DCP COUNT: (3)
* SOLUTION FOUND

Header Info

1213;H288;GP;22;11.30;11.30;2.60

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F6,H6: 7..:

* INC # H6: 7 # F8: 2,9 => UNS
* INC # H6: 7 # F8: 6,8 => UNS
* INC # H6: 7 # H1: 2,4 => UNS
* INC # H6: 7 # H2: 2,4 => UNS
* DIS # H6: 7 # H3: 2,4 => CTR => H3: 1,6,8,9
* INC # H6: 7 + H3: 1,6,8,9 # H1: 2,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # H2: 2,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # G5: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # G5: 6 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # D4: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # D4: 1 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # I1: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # I2: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # H8: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 # H8: 6,9 => UNS
* DIS # H6: 7 + H3: 1,6,8,9 # G1: 1,2 => CTR => G1: 3,4,5
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 3,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 6,9 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 3,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 2,3 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # F8: 2,9 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # F8: 6,8 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H1: 2,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H2: 2,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G5: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G5: 6 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # D4: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # D4: 1 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # I1: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # I2: 2,5 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 6,9 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 3,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 2,3 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,4 => UNS
* INC # H6: 7 + H3: 1,6,8,9 + G1: 3,4,5 => UNS
* INC # F6: 7 # F1: 2,3 => UNS
* INC # F6: 7 # F2: 2,3 => UNS
* INC # F6: 7 => UNS
* CNT  45 HDP CHAINS /  45 HYP OPENED

Full list of HDP chains traversed for F4,F6: 7..:

* INC # F4: 7 # F8: 2,9 => UNS
* INC # F4: 7 # F8: 6,8 => UNS
* INC # F4: 7 # H1: 2,4 => UNS
* INC # F4: 7 # H2: 2,4 => UNS
* DIS # F4: 7 # H3: 2,4 => CTR => H3: 1,6,8,9
* INC # F4: 7 + H3: 1,6,8,9 # H1: 2,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # H2: 2,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # G5: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # G5: 6 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # D4: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # D4: 1 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # I1: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # I2: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # H8: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 # H8: 6,9 => UNS
* DIS # F4: 7 + H3: 1,6,8,9 # G1: 1,2 => CTR => G1: 3,4,5
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 3,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 6,9 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 3,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 2,3 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # F8: 2,9 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # F8: 6,8 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H1: 2,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H2: 2,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G5: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G5: 6 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # D4: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # D4: 1 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # I1: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # I2: 2,5 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # H8: 6,9 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,2 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 3,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 2,3 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 # G3: 1,4 => UNS
* INC # F4: 7 + H3: 1,6,8,9 + G1: 3,4,5 => UNS
* INC # F6: 7 # F1: 2,3 => UNS
* INC # F6: 7 # F2: 2,3 => UNS
* INC # F6: 7 => UNS
* CNT  45 HDP CHAINS /  45 HYP OPENED

Full list of HDP chains traversed for D7,E8: 5..:

* INC # D7: 5 # E5: 1,2 => UNS
* INC # D7: 5 # E5: 5,8 => UNS
* INC # D7: 5 # D2: 1,2 => UNS
* INC # D7: 5 # D3: 1,2 => UNS
* INC # D7: 5 # F5: 8,9 => UNS
* INC # D7: 5 # F6: 8,9 => UNS
* INC # D7: 5 # D9: 8,9 => UNS
* INC # D7: 5 # D9: 2,6 => UNS
* INC # D7: 5 # F8: 2,8 => UNS
* INC # D7: 5 # D9: 2,8 => UNS
* INC # D7: 5 # E9: 2,8 => UNS
* INC # D7: 5 # E3: 2,8 => UNS
* INC # D7: 5 # E5: 2,8 => UNS
* INC # D7: 5 => UNS
* INC # E8: 5 # F6: 3,8 => UNS
* INC # E8: 5 # F6: 7,9 => UNS
* INC # E8: 5 # E3: 3,8 => UNS
* INC # E8: 5 # E3: 1,2,4 => UNS
* DIS # E8: 5 # F7: 6,9 => CTR => F7: 4
* INC # E8: 5 + F7: 4 # F8: 6,9 => UNS
* INC # E8: 5 + F7: 4 # D9: 6,9 => UNS
* PRF # E8: 5 + F7: 4 # H7: 6,9 => SOL
* STA # E8: 5 + F7: 4 + H7: 6,9
* CNT  22 HDP CHAINS /  23 HYP OPENED