Analysis of xx-ph-00013747-kz0-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7..6..75.....9...6.9....43.........59...8......2..4..85...6.....3.1.......1..2 initial

Autosolve

position: 98.7..6..75.....9...6.9....43.........59...8.8....2..4..85...6.....3.1.......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

Time used: 0:00:00.000023

List of important HDP chains detected for F5,D6: 3..:

* DIS # F5: 3 # D2: 1,6 => CTR => D2: 2,3,4,8
* CNT   1 HDP CHAINS /  42 HYP OPENED

List of important HDP chains detected for E5,F5: 4..:

* DIS # F5: 4 # B7: 7,9 => CTR => B7: 1,2,4
* CNT   1 HDP CHAINS /  25 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: 0:00:54.987881

List of important HDP chains detected for I4,I5: 6..:

* DIS # I5: 6 # C4: 1,2 # D2: 6,8 => CTR => D2: 1,2,3,4
* DIS # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # B7: 4,9 => CTR => B7: 1,2
* PRF # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 # B8: 2 => SOL
* STA # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 + B8: 2
* CNT   3 HDP CHAINS /  44 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..75.....9...6.9....43.........59...8......2..4..85...6.....3.1.......1..2 initial
98.7..6..75.....9...6.9....43.........59...8.8....2..4..85...6.....3.1.......1..2 autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
A7,B7: 1.. / A7 = 1  =>  2 pairs (_) / B7 = 1  =>  2 pairs (_)
E7,D8: 2.. / E7 = 2  =>  1 pairs (_) / D8 = 2  =>  4 pairs (_)
F5,D6: 3.. / F5 = 3  =>  4 pairs (_) / D6 = 3  =>  0 pairs (_)
E5,F5: 4.. / E5 = 4  =>  1 pairs (_) / F5 = 4  =>  2 pairs (_)
A8,A9: 5.. / A8 = 5  =>  2 pairs (_) / A9 = 5  =>  1 pairs (_)
I4,I5: 6.. / I4 = 6  =>  1 pairs (_) / I5 = 6  =>  4 pairs (_)
I8,G9: 8.. / I8 = 8  =>  1 pairs (_) / G9 = 8  =>  1 pairs (_)
F7,F8: 9.. / F7 = 9  =>  3 pairs (_) / F8 = 9  =>  1 pairs (_)
* DURATION: 0:00:06.877562  START: 18:06:40.987778  END: 18:06:47.865340 2020-12-02
* CP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
I4,I5: 6.. / I4 = 6 ==>  1 pairs (_) / I5 = 6 ==>  4 pairs (_)
E7,D8: 2.. / E7 = 2 ==>  1 pairs (_) / D8 = 2 ==>  4 pairs (_)
F5,D6: 3.. / F5 = 3 ==>  4 pairs (_) / D6 = 3 ==>  0 pairs (_)
F7,F8: 9.. / F7 = 9 ==>  3 pairs (_) / F8 = 9 ==>  1 pairs (_)
A7,B7: 1.. / A7 = 1 ==>  2 pairs (_) / B7 = 1 ==>  2 pairs (_)
A8,A9: 5.. / A8 = 5 ==>  2 pairs (_) / A9 = 5 ==>  1 pairs (_)
E5,F5: 4.. / E5 = 4 ==>  1 pairs (_) / F5 = 4 ==>  2 pairs (_)
I8,G9: 8.. / I8 = 8 ==>  1 pairs (_) / G9 = 8 ==>  1 pairs (_)
* DURATION: 0:01:30.574423  START: 18:06:47.866901  END: 18:08:18.441324 2020-12-02
* REASONING F5,D6: 3..
* DIS # F5: 3 # D2: 1,6 => CTR => D2: 2,3,4,8
* CNT   1 HDP CHAINS /  42 HYP OPENED
* REASONING E5,F5: 4..
* DIS # F5: 4 # B7: 7,9 => CTR => B7: 1,2,4
* CNT   1 HDP CHAINS /  25 HYP OPENED
* DCP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
I4,I5: 6.. / I4 = 6  =>  0 pairs (X) / I5 = 6 ==>  0 pairs (*)
* DURATION: 0:00:54.986467  START: 18:08:18.531351  END: 18:09:13.517818 2020-12-02
* REASONING I4,I5: 6..
* DIS # I5: 6 # C4: 1,2 # D2: 6,8 => CTR => D2: 1,2,3,4
* DIS # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # B7: 4,9 => CTR => B7: 1,2
* PRF # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 # B8: 2 => SOL
* STA # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 + B8: 2
* CNT   3 HDP CHAINS /  44 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

13747;kz0;GP;23;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for I4,I5: 6..:

* INC # I5: 6 # C4: 1,2 => UNS
* INC # I5: 6 # B5: 1,2 => UNS
* INC # I5: 6 # A3: 1,2 => UNS
* INC # I5: 6 # A7: 1,2 => UNS
* INC # I5: 6 # H6: 1,3 => UNS
* INC # I5: 6 # H6: 5,7 => UNS
* INC # I5: 6 # D2: 1,3 => UNS
* INC # I5: 6 # D3: 1,3 => UNS
* INC # I5: 6 => UNS
* INC # I4: 6 # E4: 1,8 => UNS
* INC # I4: 6 # E4: 5,7 => UNS
* INC # I4: 6 # D2: 1,8 => UNS
* INC # I4: 6 # D3: 1,8 => UNS
* INC # I4: 6 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for E7,D8: 2..:

* INC # D8: 2 # A3: 1,2 => UNS
* INC # D8: 2 # A5: 1,2 => UNS
* INC # D8: 2 # B3: 1,2 => UNS
* INC # D8: 2 # B5: 1,2 => UNS
* INC # D8: 2 # A9: 5,6 => UNS
* INC # D8: 2 # A9: 3 => UNS
* INC # D8: 2 # F7: 4,7 => UNS
* INC # D8: 2 # F8: 4,7 => UNS
* INC # D8: 2 # E9: 4,7 => UNS
* INC # D8: 2 # G7: 4,7 => UNS
* INC # D8: 2 # G7: 3,9 => UNS
* INC # D8: 2 # E5: 4,7 => UNS
* INC # D8: 2 # E5: 1,6 => UNS
* INC # D8: 2 => UNS
* INC # E7: 2 # A3: 1,3 => UNS
* INC # E7: 2 # A3: 2 => UNS
* INC # E7: 2 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for F5,D6: 3..:

* INC # F5: 3 # F3: 4,5 => UNS
* INC # F5: 3 # F3: 8 => UNS
* INC # F5: 3 # H1: 4,5 => UNS
* INC # F5: 3 # H1: 1,2,3 => UNS
* INC # F5: 3 # D4: 1,6 => UNS
* INC # F5: 3 # E4: 1,6 => UNS
* INC # F5: 3 # E6: 1,6 => UNS
* INC # F5: 3 # B6: 1,6 => UNS
* INC # F5: 3 # B6: 7,9 => UNS
* DIS # F5: 3 # D2: 1,6 => CTR => D2: 2,3,4,8
* INC # F5: 3 + D2: 2,3,4,8 # D4: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # E4: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # E6: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B6: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B6: 7,9 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # G4: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # H4: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B5: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B5: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # G3: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # G3: 3,4,5,8 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B7: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B7: 1,4,9 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # F3: 4,5 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # F3: 8 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # H1: 4,5 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # H1: 1,2,3 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # D4: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # E4: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # E6: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B6: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B6: 7,9 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # G4: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # H4: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B5: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B5: 1,6 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # G3: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # G3: 3,4,5,8 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B7: 2,7 => UNS
* INC # F5: 3 + D2: 2,3,4,8 # B7: 1,4,9 => UNS
* INC # F5: 3 + D2: 2,3,4,8 => UNS
* INC # D6: 3 => UNS
* CNT  42 HDP CHAINS /  42 HYP OPENED

Full list of HDP chains traversed for F7,F8: 9..:

* INC # F7: 9 # G7: 3,7 => UNS
* INC # F7: 9 # H9: 3,7 => UNS
* INC # F7: 9 # I3: 3,7 => UNS
* INC # F7: 9 # I5: 3,7 => UNS
* INC # F7: 9 => UNS
* INC # F8: 9 # E7: 4,7 => UNS
* INC # F8: 9 # E9: 4,7 => UNS
* INC # F8: 9 # B7: 4,7 => UNS
* INC # F8: 9 # G7: 4,7 => UNS
* INC # F8: 9 # F5: 4,7 => UNS
* INC # F8: 9 # F5: 3,6 => UNS
* INC # F8: 9 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for A7,B7: 1..:

* INC # A7: 1 # C1: 2,3 => UNS
* INC # A7: 1 # C2: 2,3 => UNS
* INC # A7: 1 # D3: 2,3 => UNS
* INC # A7: 1 # G3: 2,3 => UNS
* INC # A7: 1 # H3: 2,3 => UNS
* INC # A7: 1 # B5: 2,6 => UNS
* INC # A7: 1 # B5: 1,7 => UNS
* INC # A7: 1 # A8: 2,6 => UNS
* INC # A7: 1 # A8: 5 => UNS
* INC # A7: 1 => UNS
* INC # B7: 1 # C1: 2,4 => UNS
* INC # B7: 1 # C2: 2,4 => UNS
* INC # B7: 1 # D3: 2,4 => UNS
* INC # B7: 1 # G3: 2,4 => UNS
* INC # B7: 1 # H3: 2,4 => UNS
* INC # B7: 1 # B8: 2,4 => UNS
* INC # B7: 1 # B8: 6,7,9 => UNS
* INC # B7: 1 # A3: 2,3 => UNS
* INC # B7: 1 # A3: 1 => UNS
* INC # B7: 1 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for A8,A9: 5..:

* INC # A8: 5 # G7: 4,7 => UNS
* INC # A8: 5 # G9: 4,7 => UNS
* INC # A8: 5 # H9: 4,7 => UNS
* INC # A8: 5 # B8: 4,7 => UNS
* INC # A8: 5 # C8: 4,7 => UNS
* INC # A8: 5 # F8: 4,7 => UNS
* INC # A8: 5 # H3: 4,7 => UNS
* INC # A8: 5 # H3: 1,2,3,5 => UNS
* INC # A8: 5 => UNS
* INC # A9: 5 # B8: 2,6 => UNS
* INC # A9: 5 # B8: 4,7,9 => UNS
* INC # A9: 5 # D8: 2,6 => UNS
* INC # A9: 5 # D8: 4,8 => UNS
* INC # A9: 5 # A5: 2,6 => UNS
* INC # A9: 5 # A5: 1 => UNS
* INC # A9: 5 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

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

* INC # F5: 4 # F3: 3,5 => UNS
* INC # F5: 4 # F3: 8 => UNS
* INC # F5: 4 # H1: 3,5 => UNS
* INC # F5: 4 # I1: 3,5 => UNS
* INC # F5: 4 # F8: 7,9 => UNS
* INC # F5: 4 # F8: 6,8 => UNS
* DIS # F5: 4 # B7: 7,9 => CTR => B7: 1,2,4
* INC # F5: 4 + B7: 1,2,4 # G7: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # I7: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # F8: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # F8: 6,8 => UNS
* INC # F5: 4 + B7: 1,2,4 # G7: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # I7: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # F3: 3,5 => UNS
* INC # F5: 4 + B7: 1,2,4 # F3: 8 => UNS
* INC # F5: 4 + B7: 1,2,4 # H1: 3,5 => UNS
* INC # F5: 4 + B7: 1,2,4 # I1: 3,5 => UNS
* INC # F5: 4 + B7: 1,2,4 # F8: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # F8: 6,8 => UNS
* INC # F5: 4 + B7: 1,2,4 # G7: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 # I7: 7,9 => UNS
* INC # F5: 4 + B7: 1,2,4 => UNS
* INC # E5: 4 # B7: 2,7 => UNS
* INC # E5: 4 # B7: 1,4,9 => UNS
* INC # E5: 4 => UNS
* CNT  25 HDP CHAINS /  25 HYP OPENED

Full list of HDP chains traversed for I8,G9: 8..:

* INC # I8: 8 # H1: 1,3 => UNS
* INC # I8: 8 # I1: 1,3 => UNS
* INC # I8: 8 # H3: 1,3 => UNS
* INC # I8: 8 # I3: 1,3 => UNS
* INC # I8: 8 # C2: 1,3 => UNS
* INC # I8: 8 # D2: 1,3 => UNS
* INC # I8: 8 # I5: 1,3 => UNS
* INC # I8: 8 # I5: 6,7 => UNS
* INC # I8: 8 => UNS
* INC # G9: 8 # D8: 4,6 => UNS
* INC # G9: 8 # F8: 4,6 => UNS
* INC # G9: 8 # E9: 4,6 => UNS
* INC # G9: 8 # B9: 4,6 => UNS
* INC # G9: 8 # B9: 7,9 => UNS
* INC # G9: 8 # D2: 4,6 => UNS
* INC # G9: 8 # D2: 1,2,3,8 => UNS
* INC # G9: 8 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for I4,I5: 6..:

* INC # I5: 6 # C4: 1,2 => UNS
* INC # I5: 6 # B5: 1,2 => UNS
* INC # I5: 6 # A3: 1,2 => UNS
* INC # I5: 6 # A7: 1,2 => UNS
* INC # I5: 6 # H6: 1,3 => UNS
* INC # I5: 6 # H6: 5,7 => UNS
* INC # I5: 6 # D2: 1,3 => UNS
* INC # I5: 6 # D3: 1,3 => UNS
* INC # I5: 6 # C4: 1,2 # H4: 1,2 => UNS
* INC # I5: 6 # C4: 1,2 # H4: 5,7 => UNS
* INC # I5: 6 # C4: 1,2 # C1: 1,2 => UNS
* INC # I5: 6 # C4: 1,2 # C2: 1,2 => UNS
* INC # I5: 6 # C4: 1,2 # A3: 1,2 => UNS
* INC # I5: 6 # C4: 1,2 # A7: 1,2 => UNS
* INC # I5: 6 # C4: 1,2 # E4: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 # F4: 6,8 => UNS
* DIS # I5: 6 # C4: 1,2 # D2: 6,8 => CTR => D2: 1,2,3,4
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # D8: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # D9: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # E4: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # F4: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # D8: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # D9: 6,8 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # E1: 1,4 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # E2: 1,4 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # F1: 3,4 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # F2: 3,4 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # F3: 3,4 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # H6: 1,3 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # H6: 5,7 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # D2: 1,3 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # D3: 1,3 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # E4: 5,7 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # F4: 5,7 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # G6: 5,7 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # H6: 5,7 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # G2: 2,3 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # G3: 2,3 => UNS
* DIS # I5: 6 # C4: 1,2 + D2: 1,2,3,4 # B7: 4,9 => CTR => B7: 1,2
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 # B8: 4,9 => UNS
* INC # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 # B8: 4,9 => UNS
* PRF # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 # B8: 2 => SOL
* STA # I5: 6 # C4: 1,2 + D2: 1,2,3,4 + B7: 1,2 + B8: 2
* CNT  42 HDP CHAINS /  44 HYP OPENED