Analysis of xx-ph-00015940-Kz1_b-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.....6.....97...7.....5.4..3.2....84...5......1..4..95...6.....2.1.......4..3 initial

Autosolve

position: 98.7.....6.....97...7.....5.4..3.2....84...5......1..4..95...6.....2.1.......45.3 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

Deep Constraint Pair Analysis

Time used: 0:00:00.000010

List of important HDP chains detected for I7,H9: 2..:

* DIS # I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # I7: 2 + H4: 1 + H6: 3 # D9: 8,9 => CTR => D9: 1,6
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 # E9: 8,9 => CTR => E9: 1,6,7
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 + E9: 1,6,7 # H3: 2,4 => CTR => H3: 8
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 + E9: 1,6,7 + H3: 8 => CTR => I7: 7,8
* STA I7: 7,8
* CNT   6 HDP CHAINS /  23 HYP OPENED

List of important HDP chains detected for A7,G7: 4..:

* DIS # A7: 4 # I7: 7,8 => CTR => I7: 2
* DIS # A7: 4 + I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # A7: 4 + I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 # F2: 3,5 => CTR => F2: 8
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 # C1: 3,5 => CTR => C1: 1,4
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 + C1: 1,4 => CTR => A7: 1,2,3,7,8
* STA A7: 1,2,3,7,8
* CNT   6 HDP CHAINS /  46 HYP OPENED

List of important HDP chains detected for G7,H8: 4..:

* DIS # H8: 4 # I7: 7,8 => CTR => I7: 2
* DIS # H8: 4 + I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # H8: 4 + I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 # F2: 3,5 => CTR => F2: 8
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 # C1: 3,5 => CTR => C1: 1,4
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 + C1: 1,4 => CTR => H8: 8,9
* STA H8: 8,9
* CNT   6 HDP CHAINS /  46 HYP OPENED

List of important HDP chains detected for B5,B6: 9..:

* DIS # B5: 9 # F5: 6,7 => CTR => F5: 2
* CNT   1 HDP CHAINS /  25 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.....97...7.....5.4..3.2....84...5......1..4..95...6.....2.1.......4..3 initial
98.7.....6.....97...7.....5.4..3.2....84...5......1..4..95...6.....2.1.......45.3 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
F5,D6: 2.. / F5 = 2  =>  0 pairs (_) / D6 = 2  =>  0 pairs (_)
I7,H9: 2.. / I7 = 2  =>  3 pairs (_) / H9 = 2  =>  2 pairs (_)
G7,H8: 4.. / G7 = 4  =>  2 pairs (_) / H8 = 4  =>  1 pairs (_)
C2,E2: 4.. / C2 = 4  =>  0 pairs (_) / E2 = 4  =>  0 pairs (_)
A7,G7: 4.. / A7 = 4  =>  1 pairs (_) / G7 = 4  =>  2 pairs (_)
F4,E6: 5.. / F4 = 5  =>  2 pairs (_) / E6 = 5  =>  0 pairs (_)
B5,B6: 9.. / B5 = 9  =>  1 pairs (_) / B6 = 9  =>  1 pairs (_)
* DURATION: 0:00:05.075033  START: 10:29:43.161289  END: 10:29:48.236322 2020-10-19
* CP COUNT: (7)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
I7,H9: 2.. / I7 = 2 ==>  0 pairs (X) / H9 = 2  =>  2 pairs (_)
A7,G7: 4.. / A7 = 4 ==>  0 pairs (X) / G7 = 4 ==>  2 pairs (_)
G7,H8: 4.. / G7 = 4 ==>  2 pairs (_) / H8 = 4 ==>  0 pairs (X)
F4,E6: 5.. / F4 = 5 ==>  2 pairs (_) / E6 = 5 ==>  0 pairs (_)
B5,B6: 9.. / B5 = 9 ==>  1 pairs (_) / B6 = 9 ==>  1 pairs (_)
C2,E2: 4.. / C2 = 4 ==>  0 pairs (_) / E2 = 4 ==>  0 pairs (_)
F5,D6: 2.. / F5 = 2 ==>  0 pairs (_) / D6 = 2 ==>  0 pairs (_)
* DURATION: 0:01:33.332476  START: 10:29:48.237132  END: 10:31:21.569608 2020-10-19
* REASONING I7,H9: 2..
* DIS # I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # I7: 2 + H4: 1 + H6: 3 # D9: 8,9 => CTR => D9: 1,6
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 # E9: 8,9 => CTR => E9: 1,6,7
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 + E9: 1,6,7 # H3: 2,4 => CTR => H3: 8
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 + E9: 1,6,7 + H3: 8 => CTR => I7: 7,8
* STA I7: 7,8
* CNT   6 HDP CHAINS /  23 HYP OPENED
* REASONING A7,G7: 4..
* DIS # A7: 4 # I7: 7,8 => CTR => I7: 2
* DIS # A7: 4 + I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # A7: 4 + I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 # F2: 3,5 => CTR => F2: 8
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 # C1: 3,5 => CTR => C1: 1,4
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 + C1: 1,4 => CTR => A7: 1,2,3,7,8
* STA A7: 1,2,3,7,8
* CNT   6 HDP CHAINS /  46 HYP OPENED
* REASONING G7,H8: 4..
* DIS # H8: 4 # I7: 7,8 => CTR => I7: 2
* DIS # H8: 4 + I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # H8: 4 + I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 # F2: 3,5 => CTR => F2: 8
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 # C1: 3,5 => CTR => C1: 1,4
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 + C1: 1,4 => CTR => H8: 8,9
* STA H8: 8,9
* CNT   6 HDP CHAINS /  46 HYP OPENED
* REASONING B5,B6: 9..
* DIS # B5: 9 # F5: 6,7 => CTR => F5: 2
* CNT   1 HDP CHAINS /  25 HYP OPENED
* DCP COUNT: (7)
* CLUE FOUND

Header Info

15940;Kz1 b;GP;23;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for I7,H9: 2..:

* INC # I7: 2 # E1: 1,6 => UNS
* INC # I7: 2 # E1: 4,5 => UNS
* INC # I7: 2 # I4: 1,6 => UNS
* INC # I7: 2 # I5: 1,6 => UNS
* INC # I7: 2 # H3: 1,8 => UNS
* INC # I7: 2 # H3: 2,3,4 => UNS
* INC # I7: 2 # D2: 1,8 => UNS
* INC # I7: 2 # E2: 1,8 => UNS
* INC # I7: 2 # I4: 1,8 => UNS
* INC # I7: 2 # I4: 6,7,9 => UNS
* INC # I7: 2 # H8: 8,9 => UNS
* INC # I7: 2 # I8: 8,9 => UNS
* INC # I7: 2 # D9: 8,9 => UNS
* INC # I7: 2 # E9: 8,9 => UNS
* DIS # I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* INC # I7: 2 + H4: 1 + H6: 3 # H8: 8,9 => UNS
* INC # I7: 2 + H4: 1 + H6: 3 # H8: 4 => UNS
* DIS # I7: 2 + H4: 1 + H6: 3 # D9: 8,9 => CTR => D9: 1,6
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 # E9: 8,9 => CTR => E9: 1,6,7
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 + E9: 1,6,7 # H3: 2,4 => CTR => H3: 8
* DIS # I7: 2 + H4: 1 + H6: 3 + D9: 1,6 + E9: 1,6,7 + H3: 8 => CTR => I7: 7,8
* INC I7: 7,8 # H9: 2 => UNS
* STA I7: 7,8
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for A7,G7: 4..:

* INC # G7: 4 # G3: 3,6 => UNS
* INC # G7: 4 # G3: 8 => UNS
* INC # G7: 4 # F1: 3,6 => UNS
* INC # G7: 4 # F1: 2,5 => UNS
* INC # G7: 4 # G5: 3,6 => UNS
* INC # G7: 4 # G6: 3,6 => UNS
* INC # G7: 4 # I8: 8,9 => UNS
* INC # G7: 4 # H9: 8,9 => UNS
* INC # G7: 4 # D8: 8,9 => UNS
* INC # G7: 4 # F8: 8,9 => UNS
* INC # G7: 4 # H4: 8,9 => UNS
* INC # G7: 4 # H6: 8,9 => UNS
* INC # G7: 4 => UNS
* DIS # A7: 4 # I7: 7,8 => CTR => I7: 2
* INC # A7: 4 + I7: 2 # I8: 7,8 => UNS
* INC # A7: 4 + I7: 2 # I8: 7,8 => UNS
* INC # A7: 4 + I7: 2 # I8: 9 => UNS
* INC # A7: 4 + I7: 2 # E7: 7,8 => UNS
* INC # A7: 4 + I7: 2 # F7: 7,8 => UNS
* INC # A7: 4 + I7: 2 # G6: 7,8 => UNS
* INC # A7: 4 + I7: 2 # G6: 3,6 => UNS
* INC # A7: 4 + I7: 2 # E1: 1,6 => UNS
* INC # A7: 4 + I7: 2 # E1: 4,5 => UNS
* INC # A7: 4 + I7: 2 # I4: 1,6 => UNS
* INC # A7: 4 + I7: 2 # I5: 1,6 => UNS
* INC # A7: 4 + I7: 2 # H3: 1,8 => UNS
* INC # A7: 4 + I7: 2 # H3: 2,3 => UNS
* INC # A7: 4 + I7: 2 # D2: 1,8 => UNS
* INC # A7: 4 + I7: 2 # E2: 1,8 => UNS
* INC # A7: 4 + I7: 2 # I4: 1,8 => UNS
* INC # A7: 4 + I7: 2 # I4: 6,7,9 => UNS
* INC # A7: 4 + I7: 2 # I8: 7,8 => UNS
* INC # A7: 4 + I7: 2 # I8: 9 => UNS
* INC # A7: 4 + I7: 2 # E7: 7,8 => UNS
* INC # A7: 4 + I7: 2 # F7: 7,8 => UNS
* INC # A7: 4 + I7: 2 # G6: 7,8 => UNS
* INC # A7: 4 + I7: 2 # G6: 3,6 => UNS
* INC # A7: 4 + I7: 2 # I8: 8,9 => UNS
* INC # A7: 4 + I7: 2 # I8: 7 => UNS
* INC # A7: 4 + I7: 2 # D9: 8,9 => UNS
* INC # A7: 4 + I7: 2 # E9: 8,9 => UNS
* DIS # A7: 4 + I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # A7: 4 + I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 # F2: 3,5 => CTR => F2: 8
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 # C1: 3,5 => CTR => C1: 1,4
* DIS # A7: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 + C1: 1,4 => CTR => A7: 1,2,3,7,8
* STA A7: 1,2,3,7,8
* CNT  46 HDP CHAINS /  46 HYP OPENED

Full list of HDP chains traversed for G7,H8: 4..:

* INC # G7: 4 # G3: 3,6 => UNS
* INC # G7: 4 # G3: 8 => UNS
* INC # G7: 4 # F1: 3,6 => UNS
* INC # G7: 4 # F1: 2,5 => UNS
* INC # G7: 4 # G5: 3,6 => UNS
* INC # G7: 4 # G6: 3,6 => UNS
* INC # G7: 4 # I8: 8,9 => UNS
* INC # G7: 4 # H9: 8,9 => UNS
* INC # G7: 4 # D8: 8,9 => UNS
* INC # G7: 4 # F8: 8,9 => UNS
* INC # G7: 4 # H4: 8,9 => UNS
* INC # G7: 4 # H6: 8,9 => UNS
* INC # G7: 4 => UNS
* DIS # H8: 4 # I7: 7,8 => CTR => I7: 2
* INC # H8: 4 + I7: 2 # I8: 7,8 => UNS
* INC # H8: 4 + I7: 2 # I8: 7,8 => UNS
* INC # H8: 4 + I7: 2 # I8: 9 => UNS
* INC # H8: 4 + I7: 2 # E7: 7,8 => UNS
* INC # H8: 4 + I7: 2 # F7: 7,8 => UNS
* INC # H8: 4 + I7: 2 # G6: 7,8 => UNS
* INC # H8: 4 + I7: 2 # G6: 3,6 => UNS
* INC # H8: 4 + I7: 2 # E1: 1,6 => UNS
* INC # H8: 4 + I7: 2 # E1: 4,5 => UNS
* INC # H8: 4 + I7: 2 # I4: 1,6 => UNS
* INC # H8: 4 + I7: 2 # I5: 1,6 => UNS
* INC # H8: 4 + I7: 2 # H3: 1,8 => UNS
* INC # H8: 4 + I7: 2 # H3: 2,3 => UNS
* INC # H8: 4 + I7: 2 # D2: 1,8 => UNS
* INC # H8: 4 + I7: 2 # E2: 1,8 => UNS
* INC # H8: 4 + I7: 2 # I4: 1,8 => UNS
* INC # H8: 4 + I7: 2 # I4: 6,7,9 => UNS
* INC # H8: 4 + I7: 2 # I8: 7,8 => UNS
* INC # H8: 4 + I7: 2 # I8: 9 => UNS
* INC # H8: 4 + I7: 2 # E7: 7,8 => UNS
* INC # H8: 4 + I7: 2 # F7: 7,8 => UNS
* INC # H8: 4 + I7: 2 # G6: 7,8 => UNS
* INC # H8: 4 + I7: 2 # G6: 3,6 => UNS
* INC # H8: 4 + I7: 2 # I8: 8,9 => UNS
* INC # H8: 4 + I7: 2 # I8: 7 => UNS
* INC # H8: 4 + I7: 2 # D9: 8,9 => UNS
* INC # H8: 4 + I7: 2 # E9: 8,9 => UNS
* DIS # H8: 4 + I7: 2 # H4: 8,9 => CTR => H4: 1
* DIS # H8: 4 + I7: 2 + H4: 1 # H6: 8,9 => CTR => H6: 3
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 # F2: 3,5 => CTR => F2: 8
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 # C1: 3,5 => CTR => C1: 1,4
* DIS # H8: 4 + I7: 2 + H4: 1 + H6: 3 + F2: 8 + C1: 1,4 => CTR => H8: 8,9
* STA H8: 8,9
* CNT  46 HDP CHAINS /  46 HYP OPENED

Full list of HDP chains traversed for F4,E6: 5..:

* INC # F4: 5 # A5: 1,7 => UNS
* INC # F4: 5 # B5: 1,7 => UNS
* INC # F4: 5 # I4: 1,7 => UNS
* INC # F4: 5 # I4: 6,8,9 => UNS
* INC # F4: 5 # A7: 1,7 => UNS
* INC # F4: 5 # A9: 1,7 => UNS
* INC # F4: 5 # B5: 1,6 => UNS
* INC # F4: 5 # B5: 2,3,7,9 => UNS
* INC # F4: 5 # I4: 1,6 => UNS
* INC # F4: 5 # I4: 7,8,9 => UNS
* INC # F4: 5 # C9: 1,6 => UNS
* INC # F4: 5 # C9: 2 => UNS
* INC # F4: 5 => UNS
* INC # E6: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for B5,B6: 9..:

* INC # B5: 9 # F4: 6,7 => UNS
* DIS # B5: 9 # F5: 6,7 => CTR => F5: 2
* INC # B5: 9 + F5: 2 # E6: 6,7 => UNS
* INC # B5: 9 + F5: 2 # G5: 6,7 => UNS
* INC # B5: 9 + F5: 2 # I5: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E9: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E9: 1,8,9 => UNS
* INC # B5: 9 + F5: 2 # F4: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E6: 6,7 => UNS
* INC # B5: 9 + F5: 2 # G5: 6,7 => UNS
* INC # B5: 9 + F5: 2 # I5: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E9: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E9: 1,8,9 => UNS
* INC # B5: 9 + F5: 2 # F4: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E6: 6,7 => UNS
* INC # B5: 9 + F5: 2 # G5: 6,7 => UNS
* INC # B5: 9 + F5: 2 # I5: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E9: 6,7 => UNS
* INC # B5: 9 + F5: 2 # E9: 1,8,9 => UNS
* INC # B5: 9 + F5: 2 => UNS
* INC # B6: 9 # G6: 3,8 => UNS
* INC # B6: 9 # G6: 6,7 => UNS
* INC # B6: 9 # H3: 3,8 => UNS
* INC # B6: 9 # H3: 1,2,4 => UNS
* INC # B6: 9 => UNS
* CNT  25 HDP CHAINS /  25 HYP OPENED

Full list of HDP chains traversed for C2,E2: 4..:

* INC # C2: 4 => UNS
* INC # E2: 4 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for F5,D6: 2..:

* INC # F5: 2 => UNS
* INC # D6: 2 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED