Analysis of xx-ph-00050756-12_10-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76.5..7.4.......5..9.8..3.........9..8.6.........82.1...8.6....9.61......1..58 initial

Autosolve

position: 98.76.5..7.48......5..9.8..3.8.......9..8.6.........82.1...8.6.8..9.61......1..58 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000006

List of important HDP chains detected for C8,E8: 5..:

* PRF # E8: 5 # I7: 3,4 => SOL
* STA # E8: 5 + I7: 3,4
* 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

98.76.5..7.4.......5..9.8..3.........9..8.6.........82.1...8.6....9.61......1..58 initial
98.76.5..7.48......5..9.8..3.8.......9..8.6.........82.1...8.6.8..9.61......1..58 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
E2,F2: 5.. / E2 = 5  =>  1 pairs (_) / F2 = 5  =>  2 pairs (_)
I4,I5: 5.. / I4 = 5  =>  0 pairs (_) / I5 = 5  =>  0 pairs (_)
C8,E8: 5.. / C8 = 5  =>  1 pairs (_) / E8 = 5  =>  2 pairs (_)
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 (_)
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: 0:00:08.225579  START: 05:12:45.111401  END: 05:12:53.336980 2020-12-20
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
B2,I2: 6.. / B2 = 6 ==>  2 pairs (_) / I2 = 6 ==>  1 pairs (_)
I2,I3: 6.. / I2 = 6 ==>  1 pairs (_) / I3 = 6 ==>  2 pairs (_)
C8,E8: 5.. / C8 = 5  =>  0 pairs (X) / E8 = 5 ==>  0 pairs (*)
* DURATION: 0:00:35.947901  START: 05:12:53.337500  END: 05:13:29.285401 2020-12-20
* REASONING C8,E8: 5..
* PRF # E8: 5 # I7: 3,4 => SOL
* STA # E8: 5 + I7: 3,4
* CNT   1 HDP CHAINS /  16 HYP OPENED
* DCP COUNT: (3)
* SOLUTION FOUND

Header Info

50756;12_10;GP;25;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for B2,I2: 6..:

* INC # B2: 6 # C1: 1,2 => UNS
* INC # B2: 6 # C3: 1,2 => UNS
* INC # B2: 6 # D3: 1,2 => UNS
* INC # B2: 6 # F3: 1,2 => UNS
* INC # B2: 6 # A5: 1,2 => UNS
* INC # B2: 6 # A5: 4,5 => UNS
* INC # B2: 6 # B4: 4,7 => UNS
* INC # B2: 6 # B4: 2 => UNS
* INC # B2: 6 # E6: 4,7 => UNS
* INC # B2: 6 # F6: 4,7 => UNS
* INC # B2: 6 # G6: 4,7 => UNS
* INC # B2: 6 # B8: 4,7 => UNS
* INC # B2: 6 # B9: 4,7 => UNS
* INC # B2: 6 => UNS
* INC # I2: 6 # C1: 2,3 => UNS
* INC # I2: 6 # C3: 2,3 => UNS
* INC # I2: 6 # E2: 2,3 => UNS
* INC # I2: 6 # F2: 2,3 => UNS
* INC # I2: 6 # G2: 2,3 => UNS
* INC # I2: 6 # H2: 2,3 => UNS
* INC # I2: 6 # B8: 2,3 => UNS
* INC # I2: 6 # B9: 2,3 => UNS
* INC # I2: 6 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for I2,I3: 6..:

* INC # I3: 6 # C1: 1,2 => UNS
* INC # I3: 6 # C3: 1,2 => UNS
* INC # I3: 6 # D3: 1,2 => UNS
* INC # I3: 6 # F3: 1,2 => UNS
* INC # I3: 6 # A5: 1,2 => UNS
* INC # I3: 6 # A5: 4,5 => UNS
* INC # I3: 6 # B4: 4,7 => UNS
* INC # I3: 6 # B4: 2 => UNS
* INC # I3: 6 # E6: 4,7 => UNS
* INC # I3: 6 # F6: 4,7 => UNS
* INC # I3: 6 # G6: 4,7 => UNS
* INC # I3: 6 # B8: 4,7 => UNS
* INC # I3: 6 # B9: 4,7 => UNS
* INC # I3: 6 => UNS
* INC # I2: 6 # C1: 2,3 => UNS
* INC # I2: 6 # C3: 2,3 => UNS
* INC # I2: 6 # E2: 2,3 => UNS
* INC # I2: 6 # F2: 2,3 => UNS
* INC # I2: 6 # G2: 2,3 => UNS
* INC # I2: 6 # H2: 2,3 => UNS
* INC # I2: 6 # B8: 2,3 => UNS
* INC # I2: 6 # B9: 2,3 => UNS
* INC # I2: 6 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for C8,E8: 5..:

* INC # E8: 5 # F1: 2,3 => UNS
* INC # E8: 5 # D3: 2,3 => UNS
* INC # E8: 5 # F3: 2,3 => UNS
* INC # E8: 5 # B2: 2,3 => UNS
* INC # E8: 5 # G2: 2,3 => UNS
* INC # E8: 5 # H2: 2,3 => UNS
* INC # E8: 5 # E7: 2,3 => UNS
* INC # E8: 5 # E7: 4,7 => UNS
* INC # E8: 5 # H1: 3,4 => UNS
* INC # E8: 5 # H3: 3,4 => UNS
* INC # E8: 5 # I3: 3,4 => UNS
* INC # E8: 5 # F1: 3,4 => UNS
* INC # E8: 5 # F1: 1,2 => UNS
* INC # E8: 5 # I5: 3,4 => UNS
* PRF # E8: 5 # I7: 3,4 => SOL
* STA # E8: 5 + I7: 3,4
* CNT  15 HDP CHAINS /  16 HYP OPENED