Analysis of xx-ph-00762564-12_12_17s-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1....23..4..56...7..5.7...8.7.....1.59.8.......6...13...7..4...25..9..... initial

Autosolve

position: ........1..7.23..4..56...7..5.7...8.7.....1.59.8.......6...13...7..4...25..9..... autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000011

List of important HDP chains detected for D2,D6: 1..:

* DIS # D6: 1 # D1: 5,8 => CTR => D1: 4
* PRF # D6: 1 + D1: 4 # G3: 8,9 => SOL
* STA # D6: 1 + D1: 4 + G3: 8,9
* CNT   2 HDP CHAINS /  35 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

........1....23..4..56...7..5.7...8.7.....1.59.8.......6...13...7..4...25..9..... initial
........1..7.23..4..56...7..5.7...8.7.....1.59.8.......6...13...7..4...25..9..... autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D2,E3: 1.. / D2 = 1  =>  3 pairs (_) / E3 = 1  =>  1 pairs (_)
H8,H9: 1.. / H8 = 1  =>  3 pairs (_) / H9 = 1  =>  0 pairs (_)
D2,D6: 1.. / D2 = 1  =>  3 pairs (_) / D6 = 1  =>  1 pairs (_)
D7,F9: 2.. / D7 = 2  =>  2 pairs (_) / F9 = 2  =>  1 pairs (_)
H1,I3: 3.. / H1 = 3  =>  1 pairs (_) / I3 = 3  =>  2 pairs (_)
D8,E9: 3.. / D8 = 3  =>  2 pairs (_) / E9 = 3  =>  1 pairs (_)
E1,F1: 7.. / E1 = 7  =>  5 pairs (_) / F1 = 7  =>  0 pairs (_)
G6,I6: 7.. / G6 = 7  =>  1 pairs (_) / I6 = 7  =>  2 pairs (_)
E7,I7: 7.. / E7 = 7  =>  1 pairs (_) / I7 = 7  =>  3 pairs (_)
F1,F9: 7.. / F1 = 7  =>  0 pairs (_) / F9 = 7  =>  5 pairs (_)
G6,G9: 7.. / G6 = 7  =>  1 pairs (_) / G9 = 7  =>  2 pairs (_)
C7,C8: 9.. / C7 = 9  =>  3 pairs (_) / C8 = 9  =>  1 pairs (_)
* DURATION: 0:00:07.829597  START: 05:38:56.793156  END: 05:39:04.622753 2020-09-23
* CP COUNT: (12)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F1,F9: 7.. / F1 = 7 ==>  0 pairs (_) / F9 = 7 ==>  5 pairs (_)
E1,F1: 7.. / E1 = 7 ==>  5 pairs (_) / F1 = 7 ==>  0 pairs (_)
C7,C8: 9.. / C7 = 9 ==>  3 pairs (_) / C8 = 9 ==>  1 pairs (_)
E7,I7: 7.. / E7 = 7 ==>  1 pairs (_) / I7 = 7 ==>  3 pairs (_)
D2,D6: 1.. / D2 = 1 ==>  3 pairs (_) / D6 = 1 ==>  0 pairs (*)
* DURATION: 0:00:57.090494  START: 05:39:04.623494  END: 05:40:01.713988 2020-09-23
* REASONING D2,D6: 1..
* DIS # D6: 1 # D1: 5,8 => CTR => D1: 4
* PRF # D6: 1 + D1: 4 # G3: 8,9 => SOL
* STA # D6: 1 + D1: 4 + G3: 8,9
* CNT   2 HDP CHAINS /  35 HYP OPENED
* DCP COUNT: (5)
* SOLUTION FOUND

Header Info

762564;12_12_17s;dob;23;11.60;1.50;1.50

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F1,F9: 7..:

* INC # F9: 7 # I4: 3,6 => UNS
* INC # F9: 7 # H5: 3,6 => UNS
* INC # F9: 7 # H6: 3,6 => UNS
* INC # F9: 7 # E6: 3,6 => UNS
* INC # F9: 7 # E6: 1,5 => UNS
* INC # F9: 7 # B9: 4,8 => UNS
* INC # F9: 7 # B9: 1,2,3 => UNS
* INC # F9: 7 # A1: 4,8 => UNS
* INC # F9: 7 # A3: 4,8 => UNS
* INC # F9: 7 # H7: 4,9 => UNS
* INC # F9: 7 # H7: 5 => UNS
* INC # F9: 7 # D8: 5,8 => UNS
* INC # F9: 7 # F8: 5,8 => UNS
* INC # F9: 7 # G8: 6,8 => UNS
* INC # F9: 7 # G9: 6,8 => UNS
* INC # F9: 7 # E9: 6,8 => UNS
* INC # F9: 7 # E9: 3 => UNS
* INC # F9: 7 => UNS
* INC # F1: 7 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for E1,F1: 7..:

* INC # E1: 7 # I4: 3,6 => UNS
* INC # E1: 7 # H5: 3,6 => UNS
* INC # E1: 7 # H6: 3,6 => UNS
* INC # E1: 7 # E6: 3,6 => UNS
* INC # E1: 7 # E6: 1,5 => UNS
* INC # E1: 7 # B9: 4,8 => UNS
* INC # E1: 7 # B9: 1,2,3 => UNS
* INC # E1: 7 # A1: 4,8 => UNS
* INC # E1: 7 # A3: 4,8 => UNS
* INC # E1: 7 # H7: 4,9 => UNS
* INC # E1: 7 # H7: 5 => UNS
* INC # E1: 7 # D8: 5,8 => UNS
* INC # E1: 7 # F8: 5,8 => UNS
* INC # E1: 7 # G8: 6,8 => UNS
* INC # E1: 7 # G9: 6,8 => UNS
* INC # E1: 7 # E9: 6,8 => UNS
* INC # E1: 7 # E9: 3 => UNS
* INC # E1: 7 => UNS
* INC # F1: 7 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for C7,C8: 9..:

* INC # C7: 9 # A8: 1,3 => UNS
* INC # C7: 9 # B9: 1,3 => UNS
* INC # C7: 9 # C9: 1,3 => UNS
* INC # C7: 9 # C4: 1,3 => UNS
* INC # C7: 9 # C4: 2,4,6 => UNS
* INC # C7: 9 # G9: 7,8 => UNS
* INC # C7: 9 # I9: 7,8 => UNS
* INC # C7: 9 # E7: 7,8 => UNS
* INC # C7: 9 # E7: 5 => UNS
* INC # C7: 9 => UNS
* INC # C8: 9 # A7: 2,4 => UNS
* INC # C8: 9 # B9: 2,4 => UNS
* INC # C8: 9 # C9: 2,4 => UNS
* INC # C8: 9 # C1: 2,4 => UNS
* INC # C8: 9 # C4: 2,4 => UNS
* INC # C8: 9 # C5: 2,4 => UNS
* INC # C8: 9 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for E7,I7: 7..:

* INC # I7: 7 # I4: 3,6 => UNS
* INC # I7: 7 # H5: 3,6 => UNS
* INC # I7: 7 # H6: 3,6 => UNS
* INC # I7: 7 # E6: 3,6 => UNS
* INC # I7: 7 # E6: 1,5 => UNS
* INC # I7: 7 # D7: 5,8 => UNS
* INC # I7: 7 # D8: 5,8 => UNS
* INC # I7: 7 # F8: 5,8 => UNS
* INC # I7: 7 # E1: 5,8 => UNS
* INC # I7: 7 # E1: 7,9 => UNS
* INC # I7: 7 # G8: 6,8 => UNS
* INC # I7: 7 # G9: 6,8 => UNS
* INC # I7: 7 # E9: 6,8 => UNS
* INC # I7: 7 # F9: 6,8 => UNS
* INC # I7: 7 => UNS
* INC # E7: 7 # G8: 8,9 => UNS
* INC # E7: 7 # G8: 5,6 => UNS
* INC # E7: 7 # I3: 8,9 => UNS
* INC # E7: 7 # I3: 3 => UNS
* INC # E7: 7 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for D2,D6: 1..:

* INC # D2: 1 # A1: 6,8 => UNS
* INC # D2: 1 # A1: 2,3,4 => UNS
* INC # D2: 1 # G2: 6,8 => UNS
* INC # D2: 1 # G2: 5,9 => UNS
* INC # D2: 1 # B1: 8,9 => UNS
* INC # D2: 1 # B3: 8,9 => UNS
* INC # D2: 1 # G2: 8,9 => UNS
* INC # D2: 1 # G2: 5,6 => UNS
* INC # D2: 1 # E1: 8,9 => UNS
* INC # D2: 1 # F1: 8,9 => UNS
* INC # D2: 1 # F3: 8,9 => UNS
* INC # D2: 1 # B3: 8,9 => UNS
* INC # D2: 1 # G3: 8,9 => UNS
* INC # D2: 1 # I3: 8,9 => UNS
* INC # D2: 1 # E5: 8,9 => UNS
* INC # D2: 1 # E5: 3,6 => UNS
* INC # D2: 1 => UNS
* DIS # D6: 1 # D1: 5,8 => CTR => D1: 4
* INC # D6: 1 + D1: 4 # E1: 5,8 => UNS
* INC # D6: 1 + D1: 4 # F1: 5,8 => UNS
* INC # D6: 1 + D1: 4 # G2: 5,8 => UNS
* INC # D6: 1 + D1: 4 # G2: 6,9 => UNS
* INC # D6: 1 + D1: 4 # D7: 5,8 => UNS
* INC # D6: 1 + D1: 4 # D8: 5,8 => UNS
* INC # D6: 1 + D1: 4 # E1: 5,8 => UNS
* INC # D6: 1 + D1: 4 # F1: 5,8 => UNS
* INC # D6: 1 + D1: 4 # G2: 5,8 => UNS
* INC # D6: 1 + D1: 4 # G2: 6,9 => UNS
* INC # D6: 1 + D1: 4 # D7: 5,8 => UNS
* INC # D6: 1 + D1: 4 # D8: 5,8 => UNS
* INC # D6: 1 + D1: 4 # E1: 8,9 => UNS
* INC # D6: 1 + D1: 4 # F1: 8,9 => UNS
* INC # D6: 1 + D1: 4 # B3: 8,9 => UNS
* PRF # D6: 1 + D1: 4 # G3: 8,9 => SOL
* STA # D6: 1 + D1: 4 + G3: 8,9
* CNT  34 HDP CHAINS /  35 HYP OPENED