Analysis of xx-ph-00011523-kz0-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.....87...7.....5.4..3.5....65...9......2..1..86...5.....1.3.......4..2 initial

Autosolve

position: 98.7.....6.....87...7.....5.4..3.5....65...9......2..1..86...5.....1.3.......4..2 autosolve
Autosolve

Pair Reduction Variants

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000006

List of important HDP chains detected for I5,H6: 3..:

* DIS # I5: 3 # G1: 4,6 => CTR => G1: 1,2
* DIS # I5: 3 + G1: 1,2 # H1: 4,6 => CTR => H1: 1,2,3
* CNT   2 HDP CHAINS /  37 HYP OPENED

List of important HDP chains detected for H4,G5: 2..:

* DIS # H4: 2 # F4: 1,9 => CTR => F4: 6,7,8
* DIS # G5: 2 # H6: 6,8 => CTR => H6: 3,4
* PRF # G5: 2 + H6: 3,4 # H9: 6,8 => SOL
* STA # G5: 2 + H6: 3,4 + H9: 6,8
* CNT   3 HDP CHAINS /  36 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.....87...7.....5.4..3.5....65...9......2..1..86...5.....1.3.......4..2 initial
98.7.....6.....87...7.....5.4..3.5....65...9......2..1..86...5.....1.3.......4..2 autosolve

Classification

level: deep

Pairing Analysis

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* CONSTRAINT PAIRS (AUTO SOLVE)
H4,G5: 2.. / H4 = 2  =>  2 pairs (_) / G5 = 2  =>  1 pairs (_)
E7,D8: 2.. / E7 = 2  =>  1 pairs (_) / D8 = 2  =>  1 pairs (_)
I5,H6: 3.. / I5 = 3  =>  2 pairs (_) / H6 = 3  =>  1 pairs (_)
F7,D9: 3.. / F7 = 3  =>  1 pairs (_) / D9 = 3  =>  1 pairs (_)
F8,E9: 5.. / F8 = 5  =>  0 pairs (_) / E9 = 5  =>  0 pairs (_)
F4,E6: 6.. / F4 = 6  =>  2 pairs (_) / E6 = 6  =>  1 pairs (_)
B8,B9: 6.. / B8 = 6  =>  1 pairs (_) / B9 = 6  =>  1 pairs (_)
I2,G3: 9.. / I2 = 9  =>  1 pairs (_) / G3 = 9  =>  1 pairs (_)
* DURATION: 0:00:06.594978  START: 19:42:00.984360  END: 19:42:07.579338 2017-04-29
* CP COUNT: (8)

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F4,E6: 6.. / F4 = 6 ==>  2 pairs (_) / E6 = 6 ==>  1 pairs (_)
I5,H6: 3.. / I5 = 3 ==>  3 pairs (_) / H6 = 3 ==>  1 pairs (_)
H4,G5: 2.. / H4 = 2 ==>  2 pairs (_) / G5 = 2 ==>  0 pairs (*)
* DURATION: 0:00:57.727069  START: 19:42:07.579856  END: 19:43:05.306925 2017-04-29
* REASONING I5,H6: 3..
* DIS # I5: 3 # G1: 4,6 => CTR => G1: 1,2
* DIS # I5: 3 + G1: 1,2 # H1: 4,6 => CTR => H1: 1,2,3
* CNT   2 HDP CHAINS /  37 HYP OPENED
* REASONING H4,G5: 2..
* DIS # H4: 2 # F4: 1,9 => CTR => F4: 6,7,8
* DIS # G5: 2 # H6: 6,8 => CTR => H6: 3,4
* PRF # G5: 2 + H6: 3,4 # H9: 6,8 => SOL
* STA # G5: 2 + H6: 3,4 + H9: 6,8
* CNT   3 HDP CHAINS /  36 HYP OPENED
* DCP COUNT: (3)
* SOLUTION FOUND

Header Info

11523;kz0;GP;23;11.90;11.90;11.60

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F4,E6: 6..:

* INC # F4: 6 # A4: 2,8 => UNS
* INC # F4: 6 # A4: 1,7 => UNS
* INC # F4: 6 # I5: 7,8 => UNS
* INC # F4: 6 # I5: 3,4 => UNS
* INC # F4: 6 # A4: 7,8 => UNS
* INC # F4: 6 # A4: 1,2 => UNS
* INC # F4: 6 # I8: 7,8 => UNS
* INC # F4: 6 # I8: 4,6,9 => UNS
* INC # F4: 6 => UNS
* INC # E6: 6 # G5: 4,7 => UNS
* INC # E6: 6 # I5: 4,7 => UNS
* INC # E6: 6 # G7: 4,7 => UNS
* INC # E6: 6 # G7: 1,9 => UNS
* INC # E6: 6 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for I5,H6: 3..:

* DIS # I5: 3 # G1: 4,6 => CTR => G1: 1,2
* DIS # I5: 3 + G1: 1,2 # H1: 4,6 => CTR => H1: 1,2,3
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # H3: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # E1: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # E1: 2,5 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I8: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I8: 7,8,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 1,2,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # D2: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # E2: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I7: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I8: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # H1: 1,2 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 1,2 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # H3: 1,2 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # C1: 1,2 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # C1: 3,4,5 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # H3: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # E1: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # E1: 2,5 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I8: 4,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I8: 7,8,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # G3: 1,2,6 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # D2: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # E2: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I7: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 # I8: 4,9 => UNS
* INC # I5: 3 + G1: 1,2 + H1: 1,2,3 => UNS
* INC # H6: 3 # B6: 5,9 => UNS
* INC # H6: 3 # B6: 7 => UNS
* INC # H6: 3 # C8: 5,9 => UNS
* INC # H6: 3 # C9: 5,9 => UNS
* INC # H6: 3 => UNS
* CNT  37 HDP CHAINS /  37 HYP OPENED

Full list of HDP chains traversed for H4,G5: 2..:

* INC # H4: 2 # D4: 1,9 => UNS
* DIS # H4: 2 # F4: 1,9 => CTR => F4: 6,7,8
* INC # H4: 2 + F4: 6,7,8 # D4: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # D4: 8 => UNS
* INC # H4: 2 + F4: 6,7,8 # C9: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # C9: 3,5 => UNS
* INC # H4: 2 + F4: 6,7,8 # D4: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # D4: 8 => UNS
* INC # H4: 2 + F4: 6,7,8 # C9: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # C9: 3,5 => UNS
* INC # H4: 2 + F4: 6,7,8 # I5: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # G6: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # E5: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # E5: 8 => UNS
* INC # H4: 2 + F4: 6,7,8 # G7: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # G7: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # D4: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # D4: 8 => UNS
* INC # H4: 2 + F4: 6,7,8 # C9: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 # C9: 3,5 => UNS
* INC # H4: 2 + F4: 6,7,8 # I5: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # G6: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # E5: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # E5: 8 => UNS
* INC # H4: 2 + F4: 6,7,8 # G7: 4,7 => UNS
* INC # H4: 2 + F4: 6,7,8 # G7: 1,9 => UNS
* INC # H4: 2 + F4: 6,7,8 => UNS
* INC # G5: 2 # I4: 6,8 => UNS
* DIS # G5: 2 # H6: 6,8 => CTR => H6: 3,4
* INC # G5: 2 + H6: 3,4 # I4: 6,8 => UNS
* INC # G5: 2 + H6: 3,4 # I4: 7 => UNS
* INC # G5: 2 + H6: 3,4 # F4: 6,8 => UNS
* INC # G5: 2 + H6: 3,4 # F4: 1,7,9 => UNS
* INC # G5: 2 + H6: 3,4 # H8: 6,8 => UNS
* PRF # G5: 2 + H6: 3,4 # H9: 6,8 => SOL
* STA # G5: 2 + H6: 3,4 + H9: 6,8
* CNT  35 HDP CHAINS /  36 HYP OPENED