Analysis of xx-ph-00016694-Kz1_b-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6....5.96.......8....8...7.9...4.....3...2.....51....78...3.9...2....1....4 initial

Autosolve

position: 98.7..6....5.96.......8....8...7.9...4.....3...2.....51....78...3.9...2....1....4 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 G8,I8: 1..:

* PRF # I8: 1 # I5: 2,6 => SOL
* STA # I8: 1 + I5: 2,6
* CNT   1 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....5.96.......8....8...7.9...4.....3...2.....51....78...3.9...2....1....4 initial
98.7..6....5.96.......8....8...7.9...4.....3...2.....51....78...3.9...2....1....4 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
G8,I8: 1.. / G8 = 1  =>  3 pairs (_) / I8 = 1  =>  3 pairs (_)
C4,A6: 3.. / C4 = 3  =>  2 pairs (_) / A6 = 3  =>  1 pairs (_)
I7,G9: 3.. / I7 = 3  =>  2 pairs (_) / G9 = 3  =>  1 pairs (_)
B4,A5: 5.. / B4 = 5  =>  1 pairs (_) / A5 = 5  =>  1 pairs (_)
H2,I2: 8.. / H2 = 8  =>  0 pairs (_) / I2 = 8  =>  0 pairs (_)
D5,D6: 8.. / D5 = 8  =>  0 pairs (_) / D6 = 8  =>  0 pairs (_)
I5,H6: 8.. / I5 = 8  =>  0 pairs (_) / H6 = 8  =>  0 pairs (_)
C8,C9: 8.. / C8 = 8  =>  1 pairs (_) / C9 = 8  =>  0 pairs (_)
F8,F9: 8.. / F8 = 8  =>  0 pairs (_) / F9 = 8  =>  1 pairs (_)
D5,I5: 8.. / D5 = 8  =>  0 pairs (_) / I5 = 8  =>  0 pairs (_)
D6,H6: 8.. / D6 = 8  =>  0 pairs (_) / H6 = 8  =>  0 pairs (_)
C8,F8: 8.. / C8 = 8  =>  1 pairs (_) / F8 = 8  =>  0 pairs (_)
C9,F9: 8.. / C9 = 8  =>  0 pairs (_) / F9 = 8  =>  1 pairs (_)
H2,H6: 8.. / H2 = 8  =>  0 pairs (_) / H6 = 8  =>  0 pairs (_)
I2,I5: 8.. / I2 = 8  =>  0 pairs (_) / I5 = 8  =>  0 pairs (_)
H3,I3: 9.. / H3 = 9  =>  2 pairs (_) / I3 = 9  =>  1 pairs (_)
C5,B6: 9.. / C5 = 9  =>  1 pairs (_) / B6 = 9  =>  0 pairs (_)
F5,F6: 9.. / F5 = 9  =>  0 pairs (_) / F6 = 9  =>  1 pairs (_)
C5,F5: 9.. / C5 = 9  =>  1 pairs (_) / F5 = 9  =>  0 pairs (_)
B6,F6: 9.. / B6 = 9  =>  0 pairs (_) / F6 = 9  =>  1 pairs (_)
I3,I7: 9.. / I3 = 9  =>  1 pairs (_) / I7 = 9  =>  2 pairs (_)
* DURATION: 0:00:16.437726  START: 23:48:11.996364  END: 23:48:28.434090 2020-12-04
* CP COUNT: (21)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
G8,I8: 1.. / G8 = 1 ==>  3 pairs (_) / I8 = 1 ==>  0 pairs (*)
* DURATION: 0:00:28.986623  START: 23:48:28.434846  END: 23:48:57.421469 2020-12-04
* REASONING G8,I8: 1..
* PRF # I8: 1 # I5: 2,6 => SOL
* STA # I8: 1 + I5: 2,6
* CNT   1 HDP CHAINS /  23 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

16694;Kz1 b;GP;23;11.30;11.30;2.60

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for G8,I8: 1..:

* INC # G8: 1 # I5: 2,7 => UNS
* INC # G8: 1 # I5: 1,6,8 => UNS
* INC # G8: 1 # G2: 2,7 => UNS
* INC # G8: 1 # G3: 2,7 => UNS
* INC # G8: 1 # H6: 4,7 => UNS
* INC # G8: 1 # H6: 1,6,8 => UNS
* INC # G8: 1 # G2: 4,7 => UNS
* INC # G8: 1 # G3: 4,7 => UNS
* INC # G8: 1 # H9: 6,7 => UNS
* INC # G8: 1 # H9: 5,9 => UNS
* INC # G8: 1 # A8: 6,7 => UNS
* INC # G8: 1 # C8: 6,7 => UNS
* INC # G8: 1 # I5: 6,7 => UNS
* INC # G8: 1 # I5: 1,2,8 => UNS
* INC # G8: 1 => UNS
* INC # I8: 1 # G2: 2,3 => UNS
* INC # I8: 1 # I2: 2,3 => UNS
* INC # I8: 1 # G3: 2,3 => UNS
* INC # I8: 1 # I3: 2,3 => UNS
* INC # I8: 1 # E1: 2,3 => UNS
* INC # I8: 1 # F1: 2,3 => UNS
* PRF # I8: 1 # I5: 2,6 => SOL
* STA # I8: 1 + I5: 2,6
* CNT  22 HDP CHAINS /  23 HYP OPENED