Analysis of xx-ph-00035700-12_05-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76....7.54......4..9.8..3.........9..4.6.........42.1.....6....9.61......1..84 initial

Autosolve

position: 98.76.4..7.54......4..9.8..3.4.......9..4.6.........42.1...4.6.4..9.61......1..84 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000007

List of important HDP chains detected for C8,E8: 8..:

* PRF # E8: 8 # I7: 3,5 => SOL
* STA # E8: 8 + I7: 3,5
* CNT   1 HDP CHAINS /  16 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

98.76....7.54......4..9.8..3.........9..4.6.........42.1.....6....9.61......1..84 initial
98.76.4..7.54......4..9.8..3.4.......9..4.6.........42.1...4.6.4..9.61......1..84 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
I2,I3: 6.. / I2 = 6  =>  1 pairs (_) / I3 = 6  =>  2 pairs (_)
D4,D6: 6.. / D4 = 6  =>  0 pairs (_) / D6 = 6  =>  2 pairs (_)
B2,I2: 6.. / B2 = 6  =>  2 pairs (_) / I2 = 6  =>  1 pairs (_)
B4,D4: 6.. / B4 = 6  =>  2 pairs (_) / D4 = 6  =>  0 pairs (_)
H3,I3: 7.. / H3 = 7  =>  0 pairs (_) / I3 = 7  =>  2 pairs (_)
E2,F2: 8.. / E2 = 8  =>  1 pairs (_) / F2 = 8  =>  2 pairs (_)
I4,I5: 8.. / I4 = 8  =>  0 pairs (_) / I5 = 8  =>  0 pairs (_)
C8,E8: 8.. / C8 = 8  =>  1 pairs (_) / E8 = 8  =>  2 pairs (_)
F4,F6: 9.. / F4 = 9  =>  2 pairs (_) / F6 = 9  =>  0 pairs (_)
C7,C9: 9.. / C7 = 9  =>  2 pairs (_) / C9 = 9  =>  0 pairs (_)
F6,G6: 9.. / F6 = 9  =>  0 pairs (_) / G6 = 9  =>  2 pairs (_)
C9,G9: 9.. / C9 = 9  =>  0 pairs (_) / G9 = 9  =>  2 pairs (_)
H2,H4: 9.. / H2 = 9  =>  1 pairs (_) / H4 = 9  =>  1 pairs (_)
* DURATION: 0:00:12.243447  START: 10:51:09.289920  END: 10:51:21.533367 2020-12-16
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
C8,E8: 8.. / C8 = 8  =>  0 pairs (X) / E8 = 8 ==>  0 pairs (*)
* DURATION: 0:00:24.419407  START: 10:51:21.534028  END: 10:51:45.953435 2020-12-16
* REASONING C8,E8: 8..
* PRF # E8: 8 # I7: 3,5 => SOL
* STA # E8: 8 + I7: 3,5
* CNT   1 HDP CHAINS /  16 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

35700;12_05;GP;24;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for C8,E8: 8..:

* INC # E8: 8 # F1: 2,3 => UNS
* INC # E8: 8 # D3: 2,3 => UNS
* INC # E8: 8 # F3: 2,3 => UNS
* INC # E8: 8 # B2: 2,3 => UNS
* INC # E8: 8 # G2: 2,3 => UNS
* INC # E8: 8 # H2: 2,3 => UNS
* INC # E8: 8 # E7: 2,3 => UNS
* INC # E8: 8 # E7: 5,7 => UNS
* INC # E8: 8 # H1: 3,5 => UNS
* INC # E8: 8 # H3: 3,5 => UNS
* INC # E8: 8 # I3: 3,5 => UNS
* INC # E8: 8 # F1: 3,5 => UNS
* INC # E8: 8 # F1: 1,2 => UNS
* INC # E8: 8 # I5: 3,5 => UNS
* PRF # E8: 8 # I7: 3,5 => SOL
* STA # E8: 8 + I7: 3,5
* CNT  15 HDP CHAINS /  16 HYP OPENED