Analysis of xx-ph-00035198-12_05-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..7...6.5...5.8.4...5...7.9.....3.5..........2.1......56.79...1......1...9 initial

Autosolve

position: 98.75.6..7...6.5...5.8.4...5...7.9.....3.5..........251......56.795..1....5.1...9 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 A8,F8: 6..:

* PRF # A8: 6 # H9: 3,4 => SOL
* STA # A8: 6 + H9: 3,4
* CNT   1 HDP CHAINS /  17 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..7...6.5...5.8.4...5...7.9.....3.5..........2.1......56.79...1......1...9 initial
98.75.6..7...6.5...5.8.4...5...7.9.....3.5..........251......56.795..1....5.1...9 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
A3,C3: 6.. / A3 = 6  =>  1 pairs (_) / C3 = 6  =>  2 pairs (_)
H4,H5: 6.. / H4 = 6  =>  0 pairs (_) / H5 = 6  =>  0 pairs (_)
A8,F8: 6.. / A8 = 6  =>  2 pairs (_) / F8 = 6  =>  1 pairs (_)
C5,C6: 7.. / C5 = 7  =>  2 pairs (_) / C6 = 7  =>  0 pairs (_)
F7,F9: 7.. / F7 = 7  =>  0 pairs (_) / F9 = 7  =>  2 pairs (_)
C6,G6: 7.. / C6 = 7  =>  0 pairs (_) / G6 = 7  =>  2 pairs (_)
F7,G7: 7.. / F7 = 7  =>  0 pairs (_) / G7 = 7  =>  2 pairs (_)
I3,I5: 7.. / I3 = 7  =>  1 pairs (_) / I5 = 7  =>  1 pairs (_)
H2,I2: 8.. / H2 = 8  =>  2 pairs (_) / I2 = 8  =>  0 pairs (_)
H2,H3: 9.. / H2 = 9  =>  2 pairs (_) / H3 = 9  =>  1 pairs (_)
B5,B6: 9.. / B5 = 9  =>  0 pairs (_) / B6 = 9  =>  2 pairs (_)
E3,H3: 9.. / E3 = 9  =>  2 pairs (_) / H3 = 9  =>  1 pairs (_)
B5,E5: 9.. / B5 = 9  =>  0 pairs (_) / E5 = 9  =>  2 pairs (_)
* DURATION: 0:00:11.109073  START: 18:38:39.743590  END: 18:38:50.852663 2020-12-15
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
E3,H3: 9.. / E3 = 9 ==>  2 pairs (_) / H3 = 9 ==>  1 pairs (_)
H2,H3: 9.. / H2 = 9 ==>  2 pairs (_) / H3 = 9 ==>  1 pairs (_)
A8,F8: 6.. / A8 = 6 ==>  0 pairs (*) / F8 = 6  =>  0 pairs (X)
* DURATION: 0:00:42.996243  START: 18:38:50.853320  END: 18:39:33.849563 2020-12-15
* REASONING A8,F8: 6..
* PRF # A8: 6 # H9: 3,4 => SOL
* STA # A8: 6 + H9: 3,4
* CNT   1 HDP CHAINS /  17 HYP OPENED
* DCP COUNT: (3)
* SOLUTION FOUND

Header Info

35198;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 E3,H3: 9..:

* INC # E3: 9 # F1: 1,2 => UNS
* INC # E3: 9 # F2: 1,2 => UNS
* INC # E3: 9 # B2: 1,2 => UNS
* INC # E3: 9 # C2: 1,2 => UNS
* INC # E3: 9 # D4: 1,2 => UNS
* INC # E3: 9 # D4: 4,6 => UNS
* INC # E3: 9 # E5: 4,8 => UNS
* INC # E3: 9 # E5: 2 => UNS
* INC # E3: 9 # A6: 4,8 => UNS
* INC # E3: 9 # C6: 4,8 => UNS
* INC # E3: 9 # G6: 4,8 => UNS
* INC # E3: 9 # E7: 4,8 => UNS
* INC # E3: 9 # E8: 4,8 => UNS
* INC # E3: 9 => UNS
* INC # H3: 9 # F1: 2,3 => UNS
* INC # H3: 9 # F2: 2,3 => UNS
* INC # H3: 9 # A3: 2,3 => UNS
* INC # H3: 9 # C3: 2,3 => UNS
* INC # H3: 9 # G3: 2,3 => UNS
* INC # H3: 9 # I3: 2,3 => UNS
* INC # H3: 9 # E7: 2,3 => UNS
* INC # H3: 9 # E8: 2,3 => UNS
* INC # H3: 9 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for H2,H3: 9..:

* INC # H2: 9 # F1: 1,2 => UNS
* INC # H2: 9 # F2: 1,2 => UNS
* INC # H2: 9 # B2: 1,2 => UNS
* INC # H2: 9 # C2: 1,2 => UNS
* INC # H2: 9 # D4: 1,2 => UNS
* INC # H2: 9 # D4: 4,6 => UNS
* INC # H2: 9 # E5: 4,8 => UNS
* INC # H2: 9 # E5: 2 => UNS
* INC # H2: 9 # A6: 4,8 => UNS
* INC # H2: 9 # C6: 4,8 => UNS
* INC # H2: 9 # G6: 4,8 => UNS
* INC # H2: 9 # E7: 4,8 => UNS
* INC # H2: 9 # E8: 4,8 => UNS
* INC # H2: 9 => UNS
* INC # H3: 9 # F1: 2,3 => UNS
* INC # H3: 9 # F2: 2,3 => UNS
* INC # H3: 9 # A3: 2,3 => UNS
* INC # H3: 9 # C3: 2,3 => UNS
* INC # H3: 9 # G3: 2,3 => UNS
* INC # H3: 9 # I3: 2,3 => UNS
* INC # H3: 9 # E7: 2,3 => UNS
* INC # H3: 9 # E8: 2,3 => UNS
* INC # H3: 9 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for A8,F8: 6..:

* INC # A8: 6 # C1: 2,3 => UNS
* INC # A8: 6 # B2: 2,3 => UNS
* INC # A8: 6 # C2: 2,3 => UNS
* INC # A8: 6 # E3: 2,3 => UNS
* INC # A8: 6 # G3: 2,3 => UNS
* INC # A8: 6 # I3: 2,3 => UNS
* INC # A8: 6 # A9: 2,3 => UNS
* INC # A8: 6 # A9: 4,8 => UNS
* INC # A8: 6 # I1: 3,4 => UNS
* INC # A8: 6 # H2: 3,4 => UNS
* INC # A8: 6 # I2: 3,4 => UNS
* INC # A8: 6 # C1: 3,4 => UNS
* INC # A8: 6 # C1: 1,2 => UNS
* INC # A8: 6 # H4: 3,4 => UNS
* INC # A8: 6 # H8: 3,4 => UNS
* PRF # A8: 6 # H9: 3,4 => SOL
* STA # A8: 6 + H9: 3,4
* CNT  16 HDP CHAINS /  17 HYP OPENED