Analysis of xx-ph-00034233-12_05-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6...5.8....4....3..9..8.5....2..3..1...9......7.8..6.......1.2.........4 initial

Autosolve

position: 98.7.....6...5.8....4..8.3..9..8.5....2..3..1...9......7.8..6.......1.2.........4 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

Deep Constraint Pair Analysis

Time used: 0:00:00.000007

List of important HDP chains detected for G5,H5: 9..:

* DIS # G5: 9 # I8: 3,7 => CTR => I8: 5,8,9
* CNT   1 HDP CHAINS /  27 HYP OPENED

List of important HDP chains detected for F2,E3: 9..:

* DIS # E3: 9 # D2: 2,4 => CTR => D2: 1,3
* DIS # E3: 9 + D2: 1,3 # F7: 2,4 => CTR => F7: 5,9
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 # E1: 2,4 => CTR => E1: 1,3,6
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 # F1: 6 => CTR => F1: 2,4
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 # G1: 1 => CTR => G1: 2,4
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 # E1: 6 => CTR => E1: 1,3
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 + E1: 1,3 # B2: 1,3 => CTR => B2: 2
* PRF # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 + E1: 1,3 + B2: 2 => SOL
* STA E3: 9
* CNT   8 HDP CHAINS /  21 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...5.8....4....3..9..8.5....2..3..1...9......7.8..6.......1.2.........4 initial
98.7.....6...5.8....4..8.3..9..8.5....2..3..1...9......7.8..6.......1.2.........4 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D4,E6: 1.. / D4 = 1  =>  1 pairs (_) / E6 = 1  =>  0 pairs (_)
E1,D2: 3.. / E1 = 3  =>  1 pairs (_) / D2 = 3  =>  2 pairs (_)
C1,E1: 3.. / C1 = 3  =>  2 pairs (_) / E1 = 3  =>  1 pairs (_)
D5,F6: 5.. / D5 = 5  =>  1 pairs (_) / F6 = 5  =>  1 pairs (_)
C2,A3: 7.. / C2 = 7  =>  1 pairs (_) / A3 = 7  =>  1 pairs (_)
I8,H9: 8.. / I8 = 8  =>  0 pairs (_) / H9 = 8  =>  2 pairs (_)
A5,H5: 8.. / A5 = 8  =>  0 pairs (_) / H5 = 8  =>  1 pairs (_)
I6,I8: 8.. / I6 = 8  =>  2 pairs (_) / I8 = 8  =>  0 pairs (_)
F2,E3: 9.. / F2 = 9  =>  1 pairs (_) / E3 = 9  =>  1 pairs (_)
G5,H5: 9.. / G5 = 9  =>  1 pairs (_) / H5 = 9  =>  2 pairs (_)
* DURATION: 0:00:07.095919  START: 19:45:50.704775  END: 19:45:57.800694 2020-10-26
* CP COUNT: (10)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
G5,H5: 9.. / G5 = 9 ==>  1 pairs (_) / H5 = 9 ==>  2 pairs (_)
C1,E1: 3.. / C1 = 3 ==>  2 pairs (_) / E1 = 3 ==>  1 pairs (_)
E1,D2: 3.. / E1 = 3 ==>  1 pairs (_) / D2 = 3 ==>  2 pairs (_)
I6,I8: 8.. / I6 = 8 ==>  2 pairs (_) / I8 = 8 ==>  0 pairs (_)
I8,H9: 8.. / I8 = 8 ==>  0 pairs (_) / H9 = 8 ==>  2 pairs (_)
F2,E3: 9.. / F2 = 9 ==>  1 pairs (_) / E3 = 9 ==>  0 pairs (*)
* DURATION: 0:00:42.569007  START: 19:45:57.801310  END: 19:46:40.370317 2020-10-26
* REASONING G5,H5: 9..
* DIS # G5: 9 # I8: 3,7 => CTR => I8: 5,8,9
* CNT   1 HDP CHAINS /  27 HYP OPENED
* REASONING F2,E3: 9..
* DIS # E3: 9 # D2: 2,4 => CTR => D2: 1,3
* DIS # E3: 9 + D2: 1,3 # F7: 2,4 => CTR => F7: 5,9
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 # E1: 2,4 => CTR => E1: 1,3,6
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 # F1: 6 => CTR => F1: 2,4
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 # G1: 1 => CTR => G1: 2,4
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 # E1: 6 => CTR => E1: 1,3
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 + E1: 1,3 # B2: 1,3 => CTR => B2: 2
* PRF # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 + E1: 1,3 + B2: 2 => SOL
* STA E3: 9
* CNT   8 HDP CHAINS /  21 HYP OPENED
* DCP COUNT: (6)
* SOLUTION FOUND

Header Info

34233;12_05;GP;21;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for G5,H5: 9..:

* INC # H5: 9 # H4: 4,7 => UNS
* INC # H5: 9 # G6: 4,7 => UNS
* INC # H5: 9 # H6: 4,7 => UNS
* INC # H5: 9 # E5: 4,7 => UNS
* INC # H5: 9 # E5: 6 => UNS
* INC # H5: 9 # H9: 1,5 => UNS
* INC # H5: 9 # H9: 7,8 => UNS
* INC # H5: 9 # A7: 1,5 => UNS
* INC # H5: 9 # C7: 1,5 => UNS
* INC # H5: 9 # H1: 1,5 => UNS
* INC # H5: 9 # H1: 4,6 => UNS
* INC # H5: 9 => UNS
* DIS # G5: 9 # I8: 3,7 => CTR => I8: 5,8,9
* INC # G5: 9 + I8: 5,8,9 # G9: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # G9: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # G9: 1 => UNS
* INC # G5: 9 + I8: 5,8,9 # E8: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # E8: 4,6,9 => UNS
* INC # G5: 9 + I8: 5,8,9 # G6: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # G6: 2,4 => UNS
* INC # G5: 9 + I8: 5,8,9 # G9: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # G9: 1 => UNS
* INC # G5: 9 + I8: 5,8,9 # E8: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # E8: 4,6,9 => UNS
* INC # G5: 9 + I8: 5,8,9 # G6: 3,7 => UNS
* INC # G5: 9 + I8: 5,8,9 # G6: 2,4 => UNS
* INC # G5: 9 + I8: 5,8,9 => UNS
* CNT  27 HDP CHAINS /  27 HYP OPENED

Full list of HDP chains traversed for C1,E1: 3..:

* INC # C1: 3 # A3: 1,2 => UNS
* INC # C1: 3 # B3: 1,2 => UNS
* INC # C1: 3 # B9: 1,2 => UNS
* INC # C1: 3 # B9: 3,5,6 => UNS
* INC # C1: 3 # A3: 1,7 => UNS
* INC # C1: 3 # A3: 2,5 => UNS
* INC # C1: 3 # H2: 1,7 => UNS
* INC # C1: 3 # H2: 4,9 => UNS
* INC # C1: 3 # C4: 1,7 => UNS
* INC # C1: 3 # C6: 1,7 => UNS
* INC # C1: 3 => UNS
* INC # E1: 3 # A3: 1,5 => UNS
* INC # E1: 3 # B3: 1,5 => UNS
* INC # E1: 3 # H1: 1,5 => UNS
* INC # E1: 3 # H1: 4,6 => UNS
* INC # E1: 3 # C6: 1,5 => UNS
* INC # E1: 3 # C7: 1,5 => UNS
* INC # E1: 3 # C9: 1,5 => UNS
* INC # E1: 3 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for E1,D2: 3..:

* INC # D2: 3 # A3: 1,2 => UNS
* INC # D2: 3 # B3: 1,2 => UNS
* INC # D2: 3 # B9: 1,2 => UNS
* INC # D2: 3 # B9: 3,5,6 => UNS
* INC # D2: 3 # A3: 1,7 => UNS
* INC # D2: 3 # A3: 2,5 => UNS
* INC # D2: 3 # H2: 1,7 => UNS
* INC # D2: 3 # H2: 4,9 => UNS
* INC # D2: 3 # C4: 1,7 => UNS
* INC # D2: 3 # C6: 1,7 => UNS
* INC # D2: 3 => UNS
* INC # E1: 3 # A3: 1,5 => UNS
* INC # E1: 3 # B3: 1,5 => UNS
* INC # E1: 3 # H1: 1,5 => UNS
* INC # E1: 3 # H1: 4,6 => UNS
* INC # E1: 3 # C6: 1,5 => UNS
* INC # E1: 3 # C7: 1,5 => UNS
* INC # E1: 3 # C9: 1,5 => UNS
* INC # E1: 3 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for I6,I8: 8..:

* INC # I6: 8 => UNS
* INC # I8: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for I8,H9: 8..:

* INC # H9: 8 => UNS
* INC # I8: 8 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for F2,E3: 9..:

* INC # F2: 9 # G3: 2,7 => UNS
* INC # F2: 9 # I3: 2,7 => UNS
* INC # F2: 9 # I4: 2,7 => UNS
* INC # F2: 9 # I6: 2,7 => UNS
* INC # F2: 9 => UNS
* INC # E3: 9 # E1: 2,4 => UNS
* INC # E3: 9 # F1: 2,4 => UNS
* DIS # E3: 9 # D2: 2,4 => CTR => D2: 1,3
* INC # E3: 9 + D2: 1,3 # F4: 2,4 => UNS
* INC # E3: 9 + D2: 1,3 # F6: 2,4 => UNS
* DIS # E3: 9 + D2: 1,3 # F7: 2,4 => CTR => F7: 5,9
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 # E1: 2,4 => CTR => E1: 1,3,6
* INC # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 # F1: 2,4 => UNS
* INC # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 # F1: 2,4 => UNS
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 # F1: 6 => CTR => F1: 2,4
* INC # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 # G1: 2,4 => UNS
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 # G1: 1 => CTR => G1: 2,4
* INC # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 # E1: 1,3 => UNS
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 # E1: 6 => CTR => E1: 1,3
* DIS # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 + E1: 1,3 # B2: 1,3 => CTR => B2: 2
* PRF # E3: 9 + D2: 1,3 + F7: 5,9 + E1: 1,3,6 + F1: 2,4 + G1: 2,4 + E1: 1,3 + B2: 2 => SOL
* STA E3: 9
* CNT  21 HDP CHAINS /  21 HYP OPENED