Analysis of xx-ph-00015913-Kz1_b-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.....87...7.....5.4..3.2....94...6......1..4..86...5.....2...1.....43.. initial

Autosolve

position: 98.7.....6.....87...7.....5.4..3.2....94...6......1..4..86...5.....2...1.....43.. 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: 0:00:00.000008

List of important HDP chains detected for H4,G5: 1..:

* DIS # G5: 1 # G3: 4,6 => CTR => G3: 9
* DIS # G5: 1 + G3: 9 # H6: 8,9 => CTR => H6: 3
* DIS # G5: 1 + G3: 9 + H6: 3 # H9: 8,9 => CTR => H9: 2
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 # B2: 2,3 => CTR => B2: 1,5
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # E3: 1,4 => CTR => E3: 6,8
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # B6: 2,6 => CTR => B6: 7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 # F4: 5,8 => CTR => F4: 6,7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 + F4: 6,7 # E5: 5,8 => CTR => E5: 7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 + F4: 6,7 + E5: 7 => CTR => G5: 5,7
* STA G5: 5,7
* CNT   9 HDP CHAINS /  31 HYP OPENED

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

* DIS # I5: 3 # H4: 8,9 => CTR => H4: 1
* PRF # I5: 3 + H4: 1 # H9: 8,9 => SOL
* STA # I5: 3 + H4: 1 + H9: 8,9
* CNT   2 HDP CHAINS /  19 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..3.2....94...6......1..4..86...5.....2...1.....43.. initial
98.7.....6.....87...7.....5.4..3.2....94...6......1..4..86...5.....2...1.....43.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H4,G5: 1.. / H4 = 1  =>  2 pairs (_) / G5 = 1  =>  3 pairs (_)
F5,D6: 2.. / F5 = 2  =>  0 pairs (_) / D6 = 2  =>  0 pairs (_)
I5,H6: 3.. / I5 = 3  =>  3 pairs (_) / H6 = 3  =>  1 pairs (_)
C2,E2: 4.. / C2 = 4  =>  0 pairs (_) / E2 = 4  =>  0 pairs (_)
A7,G7: 4.. / A7 = 4  =>  1 pairs (_) / G7 = 4  =>  2 pairs (_)
G5,G6: 5.. / G5 = 5  =>  3 pairs (_) / G6 = 5  =>  1 pairs (_)
F4,E6: 6.. / F4 = 6  =>  1 pairs (_) / E6 = 6  =>  0 pairs (_)
G8,I9: 6.. / G8 = 6  =>  1 pairs (_) / I9 = 6  =>  3 pairs (_)
C4,F4: 6.. / C4 = 6  =>  0 pairs (_) / F4 = 6  =>  1 pairs (_)
I1,I9: 6.. / I1 = 6  =>  1 pairs (_) / I9 = 6  =>  3 pairs (_)
* DURATION: 0:00:06.514642  START: 05:52:36.483752  END: 05:52:42.998394 2020-12-04
* CP COUNT: (10)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H4,G5: 1.. / H4 = 1  =>  2 pairs (_) / G5 = 1 ==>  0 pairs (X)
I1,I9: 6.. / I1 = 6 ==>  1 pairs (_) / I9 = 6 ==>  3 pairs (_)
G8,I9: 6.. / G8 = 6 ==>  1 pairs (_) / I9 = 6 ==>  3 pairs (_)
G5,G6: 5.. / G5 = 5 ==>  3 pairs (_) / G6 = 5 ==>  1 pairs (_)
I5,H6: 3.. / I5 = 3 ==>  0 pairs (*) / H6 = 3  =>  0 pairs (X)
* DURATION: 0:01:01.159862  START: 05:52:42.999089  END: 05:53:44.158951 2020-12-04
* REASONING H4,G5: 1..
* DIS # G5: 1 # G3: 4,6 => CTR => G3: 9
* DIS # G5: 1 + G3: 9 # H6: 8,9 => CTR => H6: 3
* DIS # G5: 1 + G3: 9 + H6: 3 # H9: 8,9 => CTR => H9: 2
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 # B2: 2,3 => CTR => B2: 1,5
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # E3: 1,4 => CTR => E3: 6,8
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # B6: 2,6 => CTR => B6: 7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 # F4: 5,8 => CTR => F4: 6,7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 + F4: 6,7 # E5: 5,8 => CTR => E5: 7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 + F4: 6,7 + E5: 7 => CTR => G5: 5,7
* STA G5: 5,7
* CNT   9 HDP CHAINS /  31 HYP OPENED
* REASONING I5,H6: 3..
* DIS # I5: 3 # H4: 8,9 => CTR => H4: 1
* PRF # I5: 3 + H4: 1 # H9: 8,9 => SOL
* STA # I5: 3 + H4: 1 + H9: 8,9
* CNT   2 HDP CHAINS /  19 HYP OPENED
* DCP COUNT: (5)
* SOLUTION FOUND

Header Info

15913;Kz1 b;GP;23;11.30;11.30;10.00

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H4,G5: 1..:

* DIS # G5: 1 # G3: 4,6 => CTR => G3: 9
* INC # G5: 1 + G3: 9 # G8: 4,6 => UNS
* INC # G5: 1 + G3: 9 # G8: 7 => UNS
* INC # G5: 1 + G3: 9 # I4: 8,9 => UNS
* DIS # G5: 1 + G3: 9 # H6: 8,9 => CTR => H6: 3
* INC # G5: 1 + G3: 9 + H6: 3 # I4: 8,9 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 # I4: 7 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 # H8: 8,9 => UNS
* DIS # G5: 1 + G3: 9 + H6: 3 # H9: 8,9 => CTR => H9: 2
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 # C1: 1,4 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 # E1: 1,4 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 # C1: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 # F1: 2,3 => UNS
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 # B2: 2,3 => CTR => B2: 1,5
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # C2: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # D2: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # F2: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # C2: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # D2: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # F2: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # A3: 1,4 => UNS
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 # E3: 1,4 => CTR => E3: 6,8
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # A3: 1,4 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # A3: 2,3 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # A3: 1,4 => UNS
* INC # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # A3: 2,3 => UNS
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 # B6: 2,6 => CTR => B6: 7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 # F4: 5,8 => CTR => F4: 6,7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 + F4: 6,7 # E5: 5,8 => CTR => E5: 7
* DIS # G5: 1 + G3: 9 + H6: 3 + H9: 2 + B2: 1,5 + E3: 6,8 + B6: 7 + F4: 6,7 + E5: 7 => CTR => G5: 5,7
* INC G5: 5,7 # H4: 1 => UNS
* STA G5: 5,7
* CNT  31 HDP CHAINS /  31 HYP OPENED

Full list of HDP chains traversed for I1,I9: 6..:

* INC # I9: 6 # H1: 2,3 => UNS
* INC # I9: 6 # I2: 2,3 => UNS
* INC # I9: 6 # H3: 2,3 => UNS
* INC # I9: 6 # C1: 2,3 => UNS
* INC # I9: 6 # F1: 2,3 => UNS
* INC # I9: 6 # H3: 1,9 => UNS
* INC # I9: 6 # H3: 2,3,4 => UNS
* INC # I9: 6 # H3: 3,9 => UNS
* INC # I9: 6 # H3: 1,2,4 => UNS
* INC # I9: 6 => UNS
* INC # I1: 6 # H1: 1,4 => UNS
* INC # I1: 6 # G3: 1,4 => UNS
* INC # I1: 6 # H3: 1,4 => UNS
* INC # I1: 6 # C1: 1,4 => UNS
* INC # I1: 6 # E1: 1,4 => UNS
* INC # I1: 6 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for G8,I9: 6..:

* INC # I9: 6 # H1: 2,3 => UNS
* INC # I9: 6 # I2: 2,3 => UNS
* INC # I9: 6 # H3: 2,3 => UNS
* INC # I9: 6 # C1: 2,3 => UNS
* INC # I9: 6 # F1: 2,3 => UNS
* INC # I9: 6 # H3: 1,9 => UNS
* INC # I9: 6 # H3: 2,3,4 => UNS
* INC # I9: 6 # H3: 3,9 => UNS
* INC # I9: 6 # H3: 1,2,4 => UNS
* INC # I9: 6 => UNS
* INC # G8: 6 # H1: 1,4 => UNS
* INC # G8: 6 # G3: 1,4 => UNS
* INC # G8: 6 # H3: 1,4 => UNS
* INC # G8: 6 # C1: 1,4 => UNS
* INC # G8: 6 # E1: 1,4 => UNS
* INC # G8: 6 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for G5,G6: 5..:

* INC # G5: 5 # B6: 5,6 => UNS
* INC # G5: 5 # C6: 5,6 => UNS
* INC # G5: 5 # F4: 5,6 => UNS
* INC # G5: 5 # F4: 7,8,9 => UNS
* INC # G5: 5 # C8: 5,6 => UNS
* INC # G5: 5 # C9: 5,6 => UNS
* INC # G5: 5 # F4: 7,8 => UNS
* INC # G5: 5 # F5: 7,8 => UNS
* INC # G5: 5 # E6: 7,8 => UNS
* INC # G5: 5 # A5: 7,8 => UNS
* INC # G5: 5 # I5: 7,8 => UNS
* INC # G5: 5 # E9: 7,8 => UNS
* INC # G5: 5 # E9: 1,5,9 => UNS
* INC # G5: 5 # I4: 7,9 => UNS
* INC # G5: 5 # I4: 8 => UNS
* INC # G5: 5 # E6: 7,9 => UNS
* INC # G5: 5 # E6: 5,6,8 => UNS
* INC # G5: 5 # G7: 7,9 => UNS
* INC # G5: 5 # G8: 7,9 => UNS
* INC # G5: 5 => UNS
* INC # G6: 5 # A5: 1,7 => UNS
* INC # G6: 5 # B5: 1,7 => UNS
* INC # G6: 5 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

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

* INC # I5: 3 # F1: 2,6 => UNS
* INC # I5: 3 # F1: 3,5 => UNS
* INC # I5: 3 # I9: 2,6 => UNS
* INC # I5: 3 # I9: 7,8,9 => UNS
* INC # I5: 3 # H3: 2,9 => UNS
* INC # I5: 3 # H3: 1,3,4 => UNS
* INC # I5: 3 # D2: 2,9 => UNS
* INC # I5: 3 # F2: 2,9 => UNS
* INC # I5: 3 # I7: 2,9 => UNS
* INC # I5: 3 # I9: 2,9 => UNS
* DIS # I5: 3 # H4: 8,9 => CTR => H4: 1
* INC # I5: 3 + H4: 1 # I4: 8,9 => UNS
* INC # I5: 3 + H4: 1 # I4: 8,9 => UNS
* INC # I5: 3 + H4: 1 # I4: 7 => UNS
* INC # I5: 3 + H4: 1 # D6: 8,9 => UNS
* INC # I5: 3 + H4: 1 # E6: 8,9 => UNS
* INC # I5: 3 + H4: 1 # H8: 8,9 => UNS
* PRF # I5: 3 + H4: 1 # H9: 8,9 => SOL
* STA # I5: 3 + H4: 1 + H9: 8,9
* CNT  18 HDP CHAINS /  19 HYP OPENED