Analysis of xx-ph-00050841-12_10-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76.5..7.45......5..9.8..3.5.......9..5.6.........2..1......6...9.61......1..58 initial

Autosolve

position: 98.76.5..7.45......5..9.8..3.5.......9..5.6.........25.1...5..65..9.61......1..58 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000006

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

* PRF # E8: 8 # H7: 3,4 => SOL
* STA # E8: 8 + H7: 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..7.45......5..9.8..3.5.......9..5.6.........2..1......6...9.61......1..58 initial
98.76.5..7.45......5..9.8..3.5.......9..5.6.........25.1...5..65..9.61......1..58 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
H2,H3: 6.. / H2 = 6  =>  1 pairs (_) / H3 = 6  =>  2 pairs (_)
D4,D6: 6.. / D4 = 6  =>  0 pairs (_) / D6 = 6  =>  2 pairs (_)
B2,H2: 6.. / B2 = 6  =>  2 pairs (_) / H2 = 6  =>  1 pairs (_)
B4,D4: 6.. / B4 = 6  =>  2 pairs (_) / D4 = 6  =>  0 pairs (_)
H3,I3: 7.. / H3 = 7  =>  2 pairs (_) / I3 = 7  =>  0 pairs (_)
E2,F2: 8.. / E2 = 8  =>  1 pairs (_) / F2 = 8  =>  2 pairs (_)
H4,H5: 8.. / H4 = 8  =>  0 pairs (_) / H5 = 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 (_)
I2,I4: 9.. / I2 = 9  =>  1 pairs (_) / I4 = 9  =>  1 pairs (_)
* DURATION: 0:00:08.192882  START: 05:24:04.768572  END: 05:24:12.961454 2020-12-20
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
C8,E8: 8.. / C8 = 8  =>  0 pairs (X) / E8 = 8 ==>  0 pairs (*)
* DURATION: 0:00:16.640282  START: 05:24:12.961991  END: 05:24:29.602273 2020-12-20
* REASONING C8,E8: 8..
* PRF # E8: 8 # H7: 3,4 => SOL
* STA # E8: 8 + H7: 3,4
* CNT   1 HDP CHAINS /  16 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

50841;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 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 # I2: 2,3 => UNS
* INC # E8: 8 # E7: 2,3 => UNS
* INC # E8: 8 # E7: 4,7 => UNS
* INC # E8: 8 # I1: 3,4 => UNS
* INC # E8: 8 # H3: 3,4 => UNS
* INC # E8: 8 # I3: 3,4 => UNS
* INC # E8: 8 # F1: 3,4 => UNS
* INC # E8: 8 # F1: 1,2 => UNS
* INC # E8: 8 # H5: 3,4 => UNS
* PRF # E8: 8 # H7: 3,4 => SOL
* STA # E8: 8 + H7: 3,4
* CNT  15 HDP CHAINS /  16 HYP OPENED