Analysis of xx-ph-00012269-kz0-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7.....7...9.6....6..5...8...4..3..2......1..96..8....89..5......1..2......3..4 initial

Autosolve

position: 98.7.....7...9.6....6..5...8...4..3..2......1..96..8....89..5......1..2......3..4 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

Time used: 0:00:00.000007

List of important HDP chains detected for B8,B9: 9..:

* DIS # B9: 9 # H9: 1,7 => CTR => H9: 6,8
* CNT   1 HDP CHAINS /  26 HYP OPENED

List of important HDP chains detected for I8,H9: 8..:

* DIS # I8: 8 # B8: 4,5 => CTR => B8: 3,6,7,9
* CNT   1 HDP CHAINS /  15 HYP OPENED

List of important HDP chains detected for A5,H5: 6..:

* DIS # H5: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED

List of important HDP chains detected for B4,I4: 6..:

* DIS # B4: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED

List of important HDP chains detected for I4,H5: 6..:

* DIS # H5: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED

List of important HDP chains detected for B4,A5: 6..:

* DIS # B4: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED

List of important HDP chains detected for E1,F1: 6..:

* DIS # F1: 6 # C1: 2,3 => CTR => C1: 1,4,5
* CNT   1 HDP CHAINS /  28 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: 0:00:21.852606

List of important HDP chains detected for F4,F5: 9..:

* PRF # F4: 9 # E5: 7,8 # I4: 2,7 => SOL
* STA # F4: 9 # E5: 7,8 + I4: 2,7
* CNT   1 HDP CHAINS /  23 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.....7...9.6....6..5...8...4..3..2......1..96..8....89..5......1..2......3..4 initial
98.7.....7...9.6....6..5...8...4..3..2......1..96..8....89..5......1..2......3..4 autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
E1,F1: 6.. / E1 = 6  =>  1 pairs (_) / F1 = 6  =>  1 pairs (_)
B4,A5: 6.. / B4 = 6  =>  1 pairs (_) / A5 = 6  =>  1 pairs (_)
I4,H5: 6.. / I4 = 6  =>  1 pairs (_) / H5 = 6  =>  1 pairs (_)
B4,I4: 6.. / B4 = 6  =>  1 pairs (_) / I4 = 6  =>  1 pairs (_)
A5,H5: 6.. / A5 = 6  =>  1 pairs (_) / H5 = 6  =>  1 pairs (_)
I8,H9: 8.. / I8 = 8  =>  1 pairs (_) / H9 = 8  =>  1 pairs (_)
F4,F5: 9.. / F4 = 9  =>  2 pairs (_) / F5 = 9  =>  1 pairs (_)
B8,B9: 9.. / B8 = 9  =>  1 pairs (_) / B9 = 9  =>  1 pairs (_)
* DURATION: 0:00:04.632950  START: 07:27:09.108964  END: 07:27:13.741914 2020-12-02
* CP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F4,F5: 9.. / F4 = 9 ==>  2 pairs (_) / F5 = 9 ==>  1 pairs (_)
B8,B9: 9.. / B8 = 9 ==>  1 pairs (_) / B9 = 9 ==>  2 pairs (_)
I8,H9: 8.. / I8 = 8 ==>  1 pairs (_) / H9 = 8 ==>  1 pairs (_)
A5,H5: 6.. / A5 = 6 ==>  1 pairs (_) / H5 = 6 ==>  2 pairs (_)
B4,I4: 6.. / B4 = 6 ==>  2 pairs (_) / I4 = 6 ==>  1 pairs (_)
I4,H5: 6.. / I4 = 6 ==>  1 pairs (_) / H5 = 6 ==>  2 pairs (_)
B4,A5: 6.. / B4 = 6 ==>  2 pairs (_) / A5 = 6 ==>  1 pairs (_)
E1,F1: 6.. / E1 = 6 ==>  1 pairs (_) / F1 = 6 ==>  1 pairs (_)
* DURATION: 0:01:18.731117  START: 07:27:13.742522  END: 07:28:32.473639 2020-12-02
* REASONING B8,B9: 9..
* DIS # B9: 9 # H9: 1,7 => CTR => H9: 6,8
* CNT   1 HDP CHAINS /  26 HYP OPENED
* REASONING I8,H9: 8..
* DIS # I8: 8 # B8: 4,5 => CTR => B8: 3,6,7,9
* CNT   1 HDP CHAINS /  15 HYP OPENED
* REASONING A5,H5: 6..
* DIS # H5: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED
* REASONING B4,I4: 6..
* DIS # B4: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED
* REASONING I4,H5: 6..
* DIS # H5: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED
* REASONING B4,A5: 6..
* DIS # B4: 6 # H9: 1,7 => CTR => H9: 8,9
* CNT   1 HDP CHAINS /  26 HYP OPENED
* REASONING E1,F1: 6..
* DIS # F1: 6 # C1: 2,3 => CTR => C1: 1,4,5
* CNT   1 HDP CHAINS /  28 HYP OPENED
* DCP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
F4,F5: 9.. / F4 = 9 ==>  0 pairs (*) / F5 = 9  =>  0 pairs (X)
* DURATION: 0:00:21.850787  START: 07:28:32.595709  END: 07:28:54.446496 2020-12-02
* REASONING F4,F5: 9..
* PRF # F4: 9 # E5: 7,8 # I4: 2,7 => SOL
* STA # F4: 9 # E5: 7,8 + I4: 2,7
* CNT   1 HDP CHAINS /  23 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

12269;kz0;GP;23;11.30;11.30;10.00

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F4,F5: 9..:

* INC # F4: 9 # E5: 7,8 => UNS
* INC # F4: 9 # E5: 3,5 => UNS
* INC # F4: 9 # F8: 7,8 => UNS
* INC # F4: 9 # F8: 4,6 => UNS
* INC # F4: 9 # I4: 2,7 => UNS
* INC # F4: 9 # I6: 2,7 => UNS
* INC # F4: 9 # G3: 2,7 => UNS
* INC # F4: 9 # G3: 1,3,4,9 => UNS
* INC # F4: 9 => UNS
* INC # F5: 9 # H5: 4,7 => UNS
* INC # F5: 9 # H6: 4,7 => UNS
* INC # F5: 9 # C5: 4,7 => UNS
* INC # F5: 9 # C5: 3,5 => UNS
* INC # F5: 9 # G3: 4,7 => UNS
* INC # F5: 9 # G3: 1,2,3,9 => UNS
* INC # F5: 9 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for B8,B9: 9..:

* INC # B8: 9 # I7: 3,7 => UNS
* INC # B8: 9 # I8: 3,7 => UNS
* INC # B8: 9 # C8: 3,7 => UNS
* INC # B8: 9 # C8: 4,5 => UNS
* INC # B8: 9 # G3: 3,7 => UNS
* INC # B8: 9 # G3: 1,2,4,9 => UNS
* INC # B8: 9 => UNS
* INC # B9: 9 # H7: 1,7 => UNS
* DIS # B9: 9 # H9: 1,7 => CTR => H9: 6,8
* INC # B9: 9 + H9: 6,8 # H7: 1,7 => UNS
* INC # B9: 9 + H9: 6,8 # H7: 6 => UNS
* INC # B9: 9 + H9: 6,8 # C9: 1,7 => UNS
* INC # B9: 9 + H9: 6,8 # C9: 2,5 => UNS
* INC # B9: 9 + H9: 6,8 # G3: 1,7 => UNS
* INC # B9: 9 + H9: 6,8 # G3: 2,3,4,9 => UNS
* INC # B9: 9 + H9: 6,8 # H7: 1,7 => UNS
* INC # B9: 9 + H9: 6,8 # H7: 6 => UNS
* INC # B9: 9 + H9: 6,8 # C9: 1,7 => UNS
* INC # B9: 9 + H9: 6,8 # C9: 2,5 => UNS
* INC # B9: 9 + H9: 6,8 # G3: 1,7 => UNS
* INC # B9: 9 + H9: 6,8 # G3: 2,3,4,9 => UNS
* INC # B9: 9 + H9: 6,8 # I8: 6,8 => UNS
* INC # B9: 9 + H9: 6,8 # I8: 3,7,9 => UNS
* INC # B9: 9 + H9: 6,8 # E9: 6,8 => UNS
* INC # B9: 9 + H9: 6,8 # E9: 2,5,7 => UNS
* INC # B9: 9 + H9: 6,8 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for I8,H9: 8..:

* INC # I8: 8 # A8: 4,5 => UNS
* DIS # I8: 8 # B8: 4,5 => CTR => B8: 3,6,7,9
* INC # I8: 8 + B8: 3,6,7,9 # C8: 4,5 => UNS
* INC # I8: 8 + B8: 3,6,7,9 # A8: 4,5 => UNS
* INC # I8: 8 + B8: 3,6,7,9 # C8: 4,5 => UNS
* INC # I8: 8 + B8: 3,6,7,9 # A8: 4,5 => UNS
* INC # I8: 8 + B8: 3,6,7,9 # C8: 4,5 => UNS
* INC # I8: 8 + B8: 3,6,7,9 => UNS
* INC # H9: 8 # E9: 2,5 => UNS
* INC # H9: 8 # E9: 6,7 => UNS
* INC # H9: 8 # A9: 2,5 => UNS
* INC # H9: 8 # C9: 2,5 => UNS
* INC # H9: 8 # D4: 2,5 => UNS
* INC # H9: 8 # D4: 1 => UNS
* INC # H9: 8 => UNS
* CNT  15 HDP CHAINS /  15 HYP OPENED

Full list of HDP chains traversed for A5,H5: 6..:

* INC # A5: 6 # G8: 3,7 => UNS
* INC # A5: 6 # I8: 3,7 => UNS
* INC # A5: 6 # B7: 3,7 => UNS
* INC # A5: 6 # B7: 1,4,6 => UNS
* INC # A5: 6 # I3: 3,7 => UNS
* INC # A5: 6 # I3: 2,8,9 => UNS
* INC # A5: 6 => UNS
* INC # H5: 6 # G9: 1,7 => UNS
* DIS # H5: 6 # H9: 1,7 => CTR => H9: 8,9
* INC # H5: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # G9: 9 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # H5: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # G9: 9 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # H5: 6 + H9: 8,9 # I8: 8,9 => UNS
* INC # H5: 6 + H9: 8,9 # I8: 3,6,7 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 8,9 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 1,4,7 => UNS
* INC # H5: 6 + H9: 8,9 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for B4,I4: 6..:

* INC # B4: 6 # G9: 1,7 => UNS
* DIS # B4: 6 # H9: 1,7 => CTR => H9: 8,9
* INC # B4: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # G9: 9 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # B4: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # G9: 9 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # B4: 6 + H9: 8,9 # I8: 8,9 => UNS
* INC # B4: 6 + H9: 8,9 # I8: 3,6,7 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 8,9 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 1,4,7 => UNS
* INC # B4: 6 + H9: 8,9 => UNS
* INC # I4: 6 # G8: 3,7 => UNS
* INC # I4: 6 # I8: 3,7 => UNS
* INC # I4: 6 # B7: 3,7 => UNS
* INC # I4: 6 # B7: 1,4,6 => UNS
* INC # I4: 6 # I3: 3,7 => UNS
* INC # I4: 6 # I3: 2,8,9 => UNS
* INC # I4: 6 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for I4,H5: 6..:

* INC # I4: 6 # G8: 3,7 => UNS
* INC # I4: 6 # I8: 3,7 => UNS
* INC # I4: 6 # B7: 3,7 => UNS
* INC # I4: 6 # B7: 1,4,6 => UNS
* INC # I4: 6 # I3: 3,7 => UNS
* INC # I4: 6 # I3: 2,8,9 => UNS
* INC # I4: 6 => UNS
* INC # H5: 6 # G9: 1,7 => UNS
* DIS # H5: 6 # H9: 1,7 => CTR => H9: 8,9
* INC # H5: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # G9: 9 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # H5: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # G9: 9 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # H5: 6 + H9: 8,9 # I8: 8,9 => UNS
* INC # H5: 6 + H9: 8,9 # I8: 3,6,7 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 8,9 => UNS
* INC # H5: 6 + H9: 8,9 # H3: 1,4,7 => UNS
* INC # H5: 6 + H9: 8,9 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for B4,A5: 6..:

* INC # B4: 6 # G9: 1,7 => UNS
* DIS # B4: 6 # H9: 1,7 => CTR => H9: 8,9
* INC # B4: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # G9: 9 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # B4: 6 + H9: 8,9 # G9: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # G9: 9 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # B7: 3,4 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 1,7 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 4,8,9 => UNS
* INC # B4: 6 + H9: 8,9 # I8: 8,9 => UNS
* INC # B4: 6 + H9: 8,9 # I8: 3,6,7 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 8,9 => UNS
* INC # B4: 6 + H9: 8,9 # H3: 1,4,7 => UNS
* INC # B4: 6 + H9: 8,9 => UNS
* INC # A5: 6 # G8: 3,7 => UNS
* INC # A5: 6 # I8: 3,7 => UNS
* INC # A5: 6 # B7: 3,7 => UNS
* INC # A5: 6 # B7: 1,4,6 => UNS
* INC # A5: 6 # I3: 3,7 => UNS
* INC # A5: 6 # I3: 2,8,9 => UNS
* INC # A5: 6 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for E1,F1: 6..:

* INC # E1: 6 # F7: 2,7 => UNS
* INC # E1: 6 # E9: 2,7 => UNS
* INC # E1: 6 # E6: 2,7 => UNS
* INC # E1: 6 # E6: 3,5 => UNS
* INC # E1: 6 => UNS
* INC # F1: 6 # D2: 2,3 => UNS
* INC # F1: 6 # D3: 2,3 => UNS
* INC # F1: 6 # E3: 2,3 => UNS
* DIS # F1: 6 # C1: 2,3 => CTR => C1: 1,4,5
* INC # F1: 6 + C1: 1,4,5 # G1: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # I1: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E6: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E6: 5,7 => UNS
* INC # F1: 6 + C1: 1,4,5 # D2: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # D3: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E3: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # G1: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # I1: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E6: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E6: 5,7 => UNS
* INC # F1: 6 + C1: 1,4,5 # D2: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # D3: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E3: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # G1: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # I1: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E6: 2,3 => UNS
* INC # F1: 6 + C1: 1,4,5 # E6: 5,7 => UNS
* INC # F1: 6 + C1: 1,4,5 => UNS
* CNT  28 HDP CHAINS /  28 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for F4,F5: 9..:

* INC # F4: 9 # E5: 7,8 => UNS
* INC # F4: 9 # E5: 3,5 => UNS
* INC # F4: 9 # F8: 7,8 => UNS
* INC # F4: 9 # F8: 4,6 => UNS
* INC # F4: 9 # I4: 2,7 => UNS
* INC # F4: 9 # I6: 2,7 => UNS
* INC # F4: 9 # G3: 2,7 => UNS
* INC # F4: 9 # G3: 1,3,4,9 => UNS
* INC # F4: 9 # E5: 7,8 # E6: 3,5 => UNS
* INC # F4: 9 # E5: 7,8 # E6: 2 => UNS
* INC # F4: 9 # E5: 7,8 # A5: 3,5 => UNS
* INC # F4: 9 # E5: 7,8 # C5: 3,5 => UNS
* INC # F4: 9 # E5: 7,8 # E9: 7,8 => UNS
* INC # F4: 9 # E5: 7,8 # E9: 2,5,6 => UNS
* INC # F4: 9 # E5: 7,8 # F8: 7,8 => UNS
* INC # F4: 9 # E5: 7,8 # F8: 4,6 => UNS
* INC # F4: 9 # E5: 7,8 # D4: 1,2 => UNS
* INC # F4: 9 # E5: 7,8 # D4: 5 => UNS
* INC # F4: 9 # E5: 7,8 # F1: 1,2 => UNS
* INC # F4: 9 # E5: 7,8 # F2: 1,2 => UNS
* PRF # F4: 9 # E5: 7,8 # I4: 2,7 => SOL
* STA # F4: 9 # E5: 7,8 + I4: 2,7
* CNT  21 HDP CHAINS /  23 HYP OPENED