Analysis of xx-ph-00020476-KZ1C-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6..5...4......3..9.2.4...8.....7.59.........6..1.5.....92..9..21.........3. initial

Autosolve

position: 98.7..6..5...4......3..9.2.4...8.....7.59.........6..1.5.....92..9..21.....9...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

Time used: 0:00:00.000007

List of important HDP chains detected for E1,E6: 2..:

* DIS # E6: 2 # C2: 1,6 => CTR => C2: 7
* DIS # E6: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # E6: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => E6: 3,7
* STA E6: 3,7
* CNT   6 HDP CHAINS /   8 HYP OPENED

List of important HDP chains detected for C1,E1: 2..:

* DIS # C1: 2 # C2: 1,6 => CTR => C2: 7
* DIS # C1: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # C1: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => C1: 1,4
* STA C1: 1,4
* CNT   6 HDP CHAINS /   8 HYP OPENED

List of important HDP chains detected for E1,D2: 2..:

* DIS # D2: 2 # C2: 1,6 => CTR => C2: 7
* DIS # D2: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # D2: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => D2: 1,3,6,8
* STA D2: 1,3,6,8
* CNT   6 HDP CHAINS /   8 HYP OPENED

List of important HDP chains detected for C1,B3: 4..:

* DIS # C1: 4 # A3: 1,6 => CTR => A3: 7
* DIS # C1: 4 + A3: 7 # D3: 1,6 => CTR => D3: 8
* DIS # C1: 4 + A3: 7 + D3: 8 # E7: 3,7 => CTR => E7: 1,6
* PRF # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 # E8: 5 => SOL
* STA # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 + E8: 5
* CNT   4 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..5...4......3..9.2.4...8.....7.59.........6..1.5.....92..9..21.........3. initial
98.7..6..5...4......3..9.2.4...8.....7.59.........6..1.5.....92..9..21.....9...3. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H1,H2: 1.. / H1 = 1  =>  3 pairs (_) / H2 = 1  =>  3 pairs (_)
E1,D2: 2.. / E1 = 2  =>  2 pairs (_) / D2 = 2  =>  9 pairs (_)
C1,E1: 2.. / C1 = 2  =>  9 pairs (_) / E1 = 2  =>  2 pairs (_)
E1,E6: 2.. / E1 = 2  =>  2 pairs (_) / E6 = 2  =>  9 pairs (_)
C1,B3: 4.. / C1 = 4  =>  4 pairs (_) / B3 = 4  =>  2 pairs (_)
F5,D6: 4.. / F5 = 4  =>  2 pairs (_) / D6 = 4  =>  1 pairs (_)
C4,C6: 5.. / C4 = 5  =>  2 pairs (_) / C6 = 5  =>  0 pairs (_)
F1,F9: 5.. / F1 = 5  =>  3 pairs (_) / F9 = 5  =>  1 pairs (_)
C2,A3: 7.. / C2 = 7  =>  4 pairs (_) / A3 = 7  =>  0 pairs (_)
F4,E6: 7.. / F4 = 7  =>  2 pairs (_) / E6 = 7  =>  2 pairs (_)
G2,I2: 9.. / G2 = 9  =>  0 pairs (_) / I2 = 9  =>  0 pairs (_)
B4,B6: 9.. / B4 = 9  =>  1 pairs (_) / B6 = 9  =>  0 pairs (_)
B6,G6: 9.. / B6 = 9  =>  0 pairs (_) / G6 = 9  =>  1 pairs (_)
I2,I4: 9.. / I2 = 9  =>  0 pairs (_) / I4 = 9  =>  0 pairs (_)
* DURATION: 0:00:08.115815  START: 04:01:53.688221  END: 04:02:01.804036 2020-12-07
* CP COUNT: (14)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
E1,E6: 2.. / E1 = 2  =>  2 pairs (_) / E6 = 2 ==>  0 pairs (X)
C1,E1: 2.. / C1 = 2 ==>  0 pairs (X) / E1 = 2  =>  2 pairs (_)
E1,D2: 2.. / E1 = 2  =>  2 pairs (_) / D2 = 2 ==>  0 pairs (X)
C1,B3: 4.. / C1 = 4 ==>  0 pairs (*) / B3 = 4  =>  0 pairs (X)
* DURATION: 0:00:37.403960  START: 04:02:01.804615  END: 04:02:39.208575 2020-12-07
* REASONING E1,E6: 2..
* DIS # E6: 2 # C2: 1,6 => CTR => C2: 7
* DIS # E6: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # E6: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => E6: 3,7
* STA E6: 3,7
* CNT   6 HDP CHAINS /   8 HYP OPENED
* REASONING C1,E1: 2..
* DIS # C1: 2 # C2: 1,6 => CTR => C2: 7
* DIS # C1: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # C1: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => C1: 1,4
* STA C1: 1,4
* CNT   6 HDP CHAINS /   8 HYP OPENED
* REASONING E1,D2: 2..
* DIS # D2: 2 # C2: 1,6 => CTR => C2: 7
* DIS # D2: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # D2: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => D2: 1,3,6,8
* STA D2: 1,3,6,8
* CNT   6 HDP CHAINS /   8 HYP OPENED
* REASONING C1,B3: 4..
* DIS # C1: 4 # A3: 1,6 => CTR => A3: 7
* DIS # C1: 4 + A3: 7 # D3: 1,6 => CTR => D3: 8
* DIS # C1: 4 + A3: 7 + D3: 8 # E7: 3,7 => CTR => E7: 1,6
* PRF # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 # E8: 5 => SOL
* STA # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 + E8: 5
* CNT   4 HDP CHAINS /  19 HYP OPENED
* DCP COUNT: (4)
* SOLUTION FOUND

Header Info

20476;KZ1C;GP;23;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for E1,E6: 2..:

* DIS # E6: 2 # C2: 1,6 => CTR => C2: 7
* INC # E6: 2 + C2: 7 # A5: 3,8 => UNS
* DIS # E6: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # E6: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # E6: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => E6: 3,7
* INC E6: 3,7 # E1: 2 => UNS
* STA E6: 3,7
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for C1,E1: 2..:

* DIS # C1: 2 # C2: 1,6 => CTR => C2: 7
* INC # C1: 2 + C2: 7 # A5: 3,8 => UNS
* DIS # C1: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # C1: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # C1: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => C1: 1,4
* INC C1: 1,4 # E1: 2 => UNS
* STA C1: 1,4
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for E1,D2: 2..:

* DIS # D2: 2 # C2: 1,6 => CTR => C2: 7
* INC # D2: 2 + C2: 7 # A5: 3,8 => UNS
* DIS # D2: 2 + C2: 7 # A5: 2,6 => CTR => A5: 3,8
* DIS # D2: 2 + C2: 7 + A5: 3,8 # G6: 3,8 => CTR => G6: 4,7
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 # F5: 1,3 => CTR => F5: 4
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 # F1: 1,3 => CTR => F1: 5
* DIS # D2: 2 + C2: 7 + A5: 3,8 + G6: 4,7 + F5: 4 + F1: 5 => CTR => D2: 1,3,6,8
* INC D2: 1,3,6,8 # E1: 2 => UNS
* STA D2: 1,3,6,8
* CNT   8 HDP CHAINS /   8 HYP OPENED

Full list of HDP chains traversed for C1,B3: 4..:

* INC # C1: 4 # B2: 1,6 => UNS
* INC # C1: 4 # C2: 1,6 => UNS
* DIS # C1: 4 # A3: 1,6 => CTR => A3: 7
* DIS # C1: 4 + A3: 7 # D3: 1,6 => CTR => D3: 8
* INC # C1: 4 + A3: 7 + D3: 8 # B4: 1,6 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # B9: 1,6 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # B2: 1,6 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # C2: 1,6 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # B4: 1,6 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # B9: 1,6 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # F4: 3,7 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # F4: 1 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # G6: 3,7 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 # G6: 2,4,5,8,9 => UNS
* DIS # C1: 4 + A3: 7 + D3: 8 # E7: 3,7 => CTR => E7: 1,6
* INC # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 # E8: 3,7 => UNS
* INC # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 # E8: 3,7 => UNS
* PRF # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 # E8: 5 => SOL
* STA # C1: 4 + A3: 7 + D3: 8 + E7: 1,6 + E8: 5
* CNT  18 HDP CHAINS /  19 HYP OPENED