Analysis of xx-ph-00024239-KC40b-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7.....6...9.7....7..5...4......3...95..8......32..4.1..5...9..69..5.......1.2. initial

Autosolve

position: 98.7.....6...9.7....7..5...4....9.3...95..8......32..4.1..5...9..69..5...9...1.2. 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

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 A6,A9: 5..:

* DIS # A6: 5 # C4: 2 => CTR => C4: 1,8
* CNT   1 HDP CHAINS /  18 HYP OPENED

List of important HDP chains detected for A9,C9: 5..:

* DIS # C9: 5 # C4: 2 => CTR => C4: 1,8
* CNT   1 HDP CHAINS /  18 HYP OPENED

See Appendix: Full HDP Chains for full list of HDP chains.

Very Deep Constraint Pair Analysis

Very Deep Constraint Pair Analysis

Time used: 0:00:55.742973

List of important HDP chains detected for H3,H6: 9..:

* DIS # H6: 9 # B5: 2,6 # B2: 3,4 => CTR => B2: 5
* DIS # H6: 9 # B5: 2,6 + B2: 5 # F7: 4,6 => CTR => F7: 3,7,8
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 # F1: 3 => CTR => F1: 4,6
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 # E5: 4,6 => CTR => E5: 1
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 # G4: 1,6 => CTR => G4: 2
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 + G4: 2 # C1: 3,4 => CTR => C1: 2
* PRF # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 + G4: 2 + C1: 2 => SOL
* STA # H6: 9 + B5: 2,6
* CNT   7 HDP CHAINS /  48 HYP OPENED

See Appendix: Full HDP Chains for full list of HDP chains.

Details

This sudoku is very deep. Here is some information that may be helpful on how to proceed.

Positions

98.7.....6...9.7....7..5...4......3...95..8......32..4.1..5...9..69..5.......1.2. initial
98.7.....6...9.7....7..5...4....9.3...95..8......32..4.1..5...9..69..5...9...1.2. autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H8,I8: 1.. / H8 = 1  =>  1 pairs (_) / I8 = 1  =>  0 pairs (_)
D7,E8: 2.. / D7 = 2  =>  0 pairs (_) / E8 = 2  =>  0 pairs (_)
A5,B5: 3.. / A5 = 3  =>  1 pairs (_) / B5 = 3  =>  1 pairs (_)
E5,F5: 4.. / E5 = 4  =>  1 pairs (_) / F5 = 4  =>  2 pairs (_)
I4,H6: 5.. / I4 = 5  =>  0 pairs (_) / H6 = 5  =>  2 pairs (_)
A9,C9: 5.. / A9 = 5  =>  0 pairs (_) / C9 = 5  =>  2 pairs (_)
A6,A9: 5.. / A6 = 5  =>  2 pairs (_) / A9 = 5  =>  0 pairs (_)
G3,H3: 9.. / G3 = 9  =>  3 pairs (_) / H3 = 9  =>  0 pairs (_)
G6,H6: 9.. / G6 = 9  =>  0 pairs (_) / H6 = 9  =>  3 pairs (_)
G3,G6: 9.. / G3 = 9  =>  3 pairs (_) / G6 = 9  =>  0 pairs (_)
H3,H6: 9.. / H3 = 9  =>  0 pairs (_) / H6 = 9  =>  3 pairs (_)
* DURATION: 0:00:07.098126  START: 07:45:17.767995  END: 07:45:24.866121 2020-12-08
* CP COUNT: (11)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H3,H6: 9.. / H3 = 9 ==>  0 pairs (_) / H6 = 9 ==>  3 pairs (_)
G3,G6: 9.. / G3 = 9 ==>  3 pairs (_) / G6 = 9 ==>  0 pairs (_)
G6,H6: 9.. / G6 = 9 ==>  0 pairs (_) / H6 = 9 ==>  3 pairs (_)
G3,H3: 9.. / G3 = 9 ==>  3 pairs (_) / H3 = 9 ==>  0 pairs (_)
E5,F5: 4.. / E5 = 4 ==>  1 pairs (_) / F5 = 4 ==>  2 pairs (_)
A6,A9: 5.. / A6 = 5 ==>  3 pairs (_) / A9 = 5 ==>  0 pairs (_)
A9,C9: 5.. / A9 = 5 ==>  0 pairs (_) / C9 = 5 ==>  3 pairs (_)
I4,H6: 5.. / I4 = 5 ==>  0 pairs (_) / H6 = 5 ==>  2 pairs (_)
A5,B5: 3.. / A5 = 3 ==>  1 pairs (_) / B5 = 3 ==>  1 pairs (_)
H8,I8: 1.. / H8 = 1 ==>  1 pairs (_) / I8 = 1 ==>  0 pairs (_)
D7,E8: 2.. / D7 = 2 ==>  0 pairs (_) / E8 = 2 ==>  0 pairs (_)
* DURATION: 0:01:16.874667  START: 07:45:24.866745  END: 07:46:41.741412 2020-12-08
* REASONING A6,A9: 5..
* DIS # A6: 5 # C4: 2 => CTR => C4: 1,8
* CNT   1 HDP CHAINS /  18 HYP OPENED
* REASONING A9,C9: 5..
* DIS # C9: 5 # C4: 2 => CTR => C4: 1,8
* CNT   1 HDP CHAINS /  18 HYP OPENED
* DCP COUNT: (11)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
H3,H6: 9.. / H3 = 9  =>  0 pairs (X) / H6 = 9 ==>  0 pairs (*)
* DURATION: 0:00:55.740811  START: 07:46:41.860278  END: 07:47:37.601089 2020-12-08
* REASONING H3,H6: 9..
* DIS # H6: 9 # B5: 2,6 # B2: 3,4 => CTR => B2: 5
* DIS # H6: 9 # B5: 2,6 + B2: 5 # F7: 4,6 => CTR => F7: 3,7,8
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 # F1: 3 => CTR => F1: 4,6
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 # E5: 4,6 => CTR => E5: 1
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 # G4: 1,6 => CTR => G4: 2
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 + G4: 2 # C1: 3,4 => CTR => C1: 2
* PRF # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 + G4: 2 + C1: 2 => SOL
* STA # H6: 9 + B5: 2,6
* CNT   7 HDP CHAINS /  48 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

24239;KC40b;GP;24;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H3,H6: 9..:

* INC # H6: 9 # B5: 2,6 => UNS
* INC # H6: 9 # B5: 3 => UNS
* INC # H6: 9 # G4: 2,6 => UNS
* INC # H6: 9 # G4: 1 => UNS
* INC # H6: 9 # E5: 4,6 => UNS
* INC # H6: 9 # E5: 1 => UNS
* INC # H6: 9 # F1: 4,6 => UNS
* INC # H6: 9 # F7: 4,6 => UNS
* INC # H6: 9 # G4: 1,6 => UNS
* INC # H6: 9 # H5: 1,6 => UNS
* INC # H6: 9 # I5: 1,6 => UNS
* INC # H6: 9 # D6: 1,6 => UNS
* INC # H6: 9 # D6: 8 => UNS
* INC # H6: 9 # G1: 1,6 => UNS
* INC # H6: 9 # G1: 2,3,4 => UNS
* INC # H6: 9 => UNS
* INC # H3: 9 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for G3,G6: 9..:

* INC # G3: 9 # B5: 2,6 => UNS
* INC # G3: 9 # B5: 3 => UNS
* INC # G3: 9 # G4: 2,6 => UNS
* INC # G3: 9 # G4: 1 => UNS
* INC # G3: 9 # E5: 4,6 => UNS
* INC # G3: 9 # E5: 1 => UNS
* INC # G3: 9 # F1: 4,6 => UNS
* INC # G3: 9 # F7: 4,6 => UNS
* INC # G3: 9 # G4: 1,6 => UNS
* INC # G3: 9 # H5: 1,6 => UNS
* INC # G3: 9 # I5: 1,6 => UNS
* INC # G3: 9 # D6: 1,6 => UNS
* INC # G3: 9 # D6: 8 => UNS
* INC # G3: 9 # G1: 1,6 => UNS
* INC # G3: 9 # G1: 2,3,4 => UNS
* INC # G3: 9 => UNS
* INC # G6: 9 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for G6,H6: 9..:

* INC # H6: 9 # B5: 2,6 => UNS
* INC # H6: 9 # B5: 3 => UNS
* INC # H6: 9 # G4: 2,6 => UNS
* INC # H6: 9 # G4: 1 => UNS
* INC # H6: 9 # E5: 4,6 => UNS
* INC # H6: 9 # E5: 1 => UNS
* INC # H6: 9 # F1: 4,6 => UNS
* INC # H6: 9 # F7: 4,6 => UNS
* INC # H6: 9 # G4: 1,6 => UNS
* INC # H6: 9 # H5: 1,6 => UNS
* INC # H6: 9 # I5: 1,6 => UNS
* INC # H6: 9 # D6: 1,6 => UNS
* INC # H6: 9 # D6: 8 => UNS
* INC # H6: 9 # G1: 1,6 => UNS
* INC # H6: 9 # G1: 2,3,4 => UNS
* INC # H6: 9 => UNS
* INC # G6: 9 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for G3,H3: 9..:

* INC # G3: 9 # B5: 2,6 => UNS
* INC # G3: 9 # B5: 3 => UNS
* INC # G3: 9 # G4: 2,6 => UNS
* INC # G3: 9 # G4: 1 => UNS
* INC # G3: 9 # E5: 4,6 => UNS
* INC # G3: 9 # E5: 1 => UNS
* INC # G3: 9 # F1: 4,6 => UNS
* INC # G3: 9 # F7: 4,6 => UNS
* INC # G3: 9 # G4: 1,6 => UNS
* INC # G3: 9 # H5: 1,6 => UNS
* INC # G3: 9 # I5: 1,6 => UNS
* INC # G3: 9 # D6: 1,6 => UNS
* INC # G3: 9 # D6: 8 => UNS
* INC # G3: 9 # G1: 1,6 => UNS
* INC # G3: 9 # G1: 2,3,4 => UNS
* INC # G3: 9 => UNS
* INC # H3: 9 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for E5,F5: 4..:

* INC # F5: 4 # D3: 3,6 => UNS
* INC # F5: 4 # D3: 1,2,4,8 => UNS
* INC # F5: 4 # G1: 3,6 => UNS
* INC # F5: 4 # I1: 3,6 => UNS
* INC # F5: 4 # F7: 3,6 => UNS
* INC # F5: 4 # F7: 7,8 => UNS
* INC # F5: 4 # D2: 3,8 => UNS
* INC # F5: 4 # D3: 3,8 => UNS
* INC # F5: 4 # I2: 3,8 => UNS
* INC # F5: 4 # I2: 1,2,5 => UNS
* INC # F5: 4 # F7: 3,8 => UNS
* INC # F5: 4 # F8: 3,8 => UNS
* INC # F5: 4 => UNS
* INC # E5: 4 # E4: 6,7 => UNS
* INC # E5: 4 # E4: 1,8 => UNS
* INC # E5: 4 # B5: 6,7 => UNS
* INC # E5: 4 # H5: 6,7 => UNS
* INC # E5: 4 # I5: 6,7 => UNS
* INC # E5: 4 # F7: 6,7 => UNS
* INC # E5: 4 # F7: 3,4,8 => UNS
* INC # E5: 4 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for A6,A9: 5..:

* INC # A6: 5 # B4: 6,7 => UNS
* INC # A6: 5 # B5: 6,7 => UNS
* INC # A6: 5 # H6: 6,7 => UNS
* INC # A6: 5 # H6: 1,9 => UNS
* INC # A6: 5 # C4: 1,8 => UNS
* DIS # A6: 5 # C4: 2 => CTR => C4: 1,8
* INC # A6: 5 + C4: 1,8 # D6: 1,8 => UNS
* INC # A6: 5 + C4: 1,8 # D6: 6 => UNS
* INC # A6: 5 + C4: 1,8 # D4: 1,8 => UNS
* INC # A6: 5 + C4: 1,8 # E4: 1,8 => UNS
* INC # A6: 5 + C4: 1,8 # B4: 6,7 => UNS
* INC # A6: 5 + C4: 1,8 # B5: 6,7 => UNS
* INC # A6: 5 + C4: 1,8 # H6: 6,7 => UNS
* INC # A6: 5 + C4: 1,8 # H6: 1,9 => UNS
* INC # A6: 5 + C4: 1,8 # D6: 1,8 => UNS
* INC # A6: 5 + C4: 1,8 # D6: 6 => UNS
* INC # A6: 5 + C4: 1,8 => UNS
* INC # A9: 5 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for A9,C9: 5..:

* INC # C9: 5 # B4: 6,7 => UNS
* INC # C9: 5 # B5: 6,7 => UNS
* INC # C9: 5 # H6: 6,7 => UNS
* INC # C9: 5 # H6: 1,9 => UNS
* INC # C9: 5 # C4: 1,8 => UNS
* DIS # C9: 5 # C4: 2 => CTR => C4: 1,8
* INC # C9: 5 + C4: 1,8 # D6: 1,8 => UNS
* INC # C9: 5 + C4: 1,8 # D6: 6 => UNS
* INC # C9: 5 + C4: 1,8 # D4: 1,8 => UNS
* INC # C9: 5 + C4: 1,8 # E4: 1,8 => UNS
* INC # C9: 5 + C4: 1,8 # B4: 6,7 => UNS
* INC # C9: 5 + C4: 1,8 # B5: 6,7 => UNS
* INC # C9: 5 + C4: 1,8 # H6: 6,7 => UNS
* INC # C9: 5 + C4: 1,8 # H6: 1,9 => UNS
* INC # C9: 5 + C4: 1,8 # D6: 1,8 => UNS
* INC # C9: 5 + C4: 1,8 # D6: 6 => UNS
* INC # C9: 5 + C4: 1,8 => UNS
* INC # A9: 5 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for I4,H6: 5..:

* INC # H6: 5 # C4: 1,8 => UNS
* INC # H6: 5 # A6: 1,8 => UNS
* INC # H6: 5 # D6: 1,8 => UNS
* INC # H6: 5 # D6: 6 => UNS
* INC # H6: 5 => UNS
* INC # I4: 5 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for A5,B5: 3..:

* INC # A5: 3 # C1: 1,2 => UNS
* INC # A5: 3 # C2: 1,2 => UNS
* INC # A5: 3 # D3: 1,2 => UNS
* INC # A5: 3 # E3: 1,2 => UNS
* INC # A5: 3 # G3: 1,2 => UNS
* INC # A5: 3 # I3: 1,2 => UNS
* INC # A5: 3 => UNS
* INC # B5: 3 # C1: 2,4 => UNS
* INC # B5: 3 # B2: 2,4 => UNS
* INC # B5: 3 # C2: 2,4 => UNS
* INC # B5: 3 # D3: 2,4 => UNS
* INC # B5: 3 # E3: 2,4 => UNS
* INC # B5: 3 # G3: 2,4 => UNS
* INC # B5: 3 # B8: 2,4 => UNS
* INC # B5: 3 # B8: 7 => UNS
* INC # B5: 3 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for H8,I8: 1..:

* INC # H8: 1 # I4: 6,7 => UNS
* INC # H8: 1 # I5: 6,7 => UNS
* INC # H8: 1 # H6: 6,7 => UNS
* INC # H8: 1 # B5: 6,7 => UNS
* INC # H8: 1 # E5: 6,7 => UNS
* INC # H8: 1 # F5: 6,7 => UNS
* INC # H8: 1 # H7: 6,7 => UNS
* INC # H8: 1 # H7: 4,8 => UNS
* INC # H8: 1 => UNS
* INC # I8: 1 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for D7,E8: 2..:

* INC # D7: 2 => UNS
* INC # E8: 2 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for H3,H6: 9..:

* INC # H6: 9 # B5: 2,6 => UNS
* INC # H6: 9 # B5: 3 => UNS
* INC # H6: 9 # G4: 2,6 => UNS
* INC # H6: 9 # G4: 1 => UNS
* INC # H6: 9 # E5: 4,6 => UNS
* INC # H6: 9 # E5: 1 => UNS
* INC # H6: 9 # F1: 4,6 => UNS
* INC # H6: 9 # F7: 4,6 => UNS
* INC # H6: 9 # G4: 1,6 => UNS
* INC # H6: 9 # H5: 1,6 => UNS
* INC # H6: 9 # I5: 1,6 => UNS
* INC # H6: 9 # D6: 1,6 => UNS
* INC # H6: 9 # D6: 8 => UNS
* INC # H6: 9 # G1: 1,6 => UNS
* INC # H6: 9 # G1: 2,3,4 => UNS
* INC # H6: 9 # B5: 2,6 # C1: 1,2 => UNS
* INC # H6: 9 # B5: 2,6 # C2: 1,2 => UNS
* INC # H6: 9 # B5: 2,6 # D3: 1,2 => UNS
* INC # H6: 9 # B5: 2,6 # E3: 1,2 => UNS
* INC # H6: 9 # B5: 2,6 # I3: 1,2 => UNS
* INC # H6: 9 # B5: 2,6 # C1: 3,4 => UNS
* DIS # H6: 9 # B5: 2,6 # B2: 3,4 => CTR => B2: 5
* INC # H6: 9 # B5: 2,6 + B2: 5 # C2: 3,4 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # D3: 3,4 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # D3: 1,2,6 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # C1: 3,4 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # C2: 3,4 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # D3: 3,4 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # D3: 1,2,6 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # G4: 2,6 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # G4: 1 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # A6: 1,8 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # C6: 1,8 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # D4: 1,8 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # D4: 6 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # I5: 2,6 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # I5: 1,7 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # E5: 4,6 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # E5: 1 => UNS
* INC # H6: 9 # B5: 2,6 + B2: 5 # F1: 4,6 => UNS
* DIS # H6: 9 # B5: 2,6 + B2: 5 # F7: 4,6 => CTR => F7: 3,7,8
* INC # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 # F1: 4,6 => UNS
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 # F1: 3 => CTR => F1: 4,6
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 # E5: 4,6 => CTR => E5: 1
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 # G4: 1,6 => CTR => G4: 2
* DIS # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 + G4: 2 # C1: 3,4 => CTR => C1: 2
* PRF # H6: 9 # B5: 2,6 + B2: 5 + F7: 3,7,8 + F1: 4,6 + E5: 1 + G4: 2 + C1: 2 => SOL
* STA # H6: 9 + B5: 2,6
* CNT  47 HDP CHAINS /  48 HYP OPENED