Analysis of xx-ph-00014499-kz1a-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7.....6...9.7....7..5...4......3..7...2..4..86..5...1.....2...68..9.......3..1 initial

Autosolve

position: 98.7.....6...9.7....7..5...46.....3..7...2..4..86..5...1.....2...68..9.......3..1 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

Time used: 0:00:00.000007

List of important HDP chains detected for E6,F6: 4..:

* DIS # F6: 4 # E1: 1,6 => CTR => E1: 2,3,4
* CNT   1 HDP CHAINS /  36 HYP OPENED

List of important HDP chains detected for B6,B9: 9..:

* DIS # B6: 9 # I4: 2,7 => CTR => I4: 8,9
* CNT   1 HDP CHAINS /  21 HYP OPENED

List of important HDP chains detected for E8,F8: 1..:

* DIS # F8: 1 # E1: 4,6 => CTR => E1: 1,2,3
* CNT   1 HDP CHAINS /  31 HYP OPENED

List of important HDP chains detected for F1,F7: 6..:

* DIS # F7: 6 # E3: 1,4 => CTR => E3: 2,3,6,8
* CNT   1 HDP CHAINS /  40 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: 0:00:28.875916

List of important HDP chains detected for F2,F4: 8..:

* PRF # F4: 8 # E1: 1,4 # A3: 2,3 => SOL
* STA # F4: 8 # E1: 1,4 + A3: 2,3
* CNT   1 HDP CHAINS /  27 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..7...2..4..86..5...1.....2...68..9.......3..1 initial
98.7.....6...9.7....7..5...46.....3..7...2..4..86..5...1.....2...68..9.......3..1 autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
E8,F8: 1.. / E8 = 1  =>  1 pairs (_) / F8 = 1  =>  2 pairs (_)
E6,F6: 4.. / E6 = 4  =>  1 pairs (_) / F6 = 4  =>  3 pairs (_)
G5,H5: 6.. / G5 = 6  =>  1 pairs (_) / H5 = 6  =>  1 pairs (_)
F1,F7: 6.. / F1 = 6  =>  0 pairs (_) / F7 = 6  =>  2 pairs (_)
F2,E3: 8.. / F2 = 8  =>  0 pairs (_) / E3 = 8  =>  4 pairs (_)
A7,A9: 8.. / A7 = 8  =>  0 pairs (_) / A9 = 8  =>  1 pairs (_)
F2,F4: 8.. / F2 = 8  =>  0 pairs (_) / F4 = 8  =>  4 pairs (_)
H3,I3: 9.. / H3 = 9  =>  1 pairs (_) / I3 = 9  =>  1 pairs (_)
B6,B9: 9.. / B6 = 9  =>  2 pairs (_) / B9 = 9  =>  1 pairs (_)
* DURATION: 0:00:05.941574  START: 05:09:57.237324  END: 05:10:03.178898 2020-12-03
* CP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F2,F4: 8.. / F2 = 8 ==>  0 pairs (_) / F4 = 8 ==>  4 pairs (_)
F2,E3: 8.. / F2 = 8 ==>  0 pairs (_) / E3 = 8 ==>  4 pairs (_)
E6,F6: 4.. / E6 = 4 ==>  1 pairs (_) / F6 = 4 ==>  3 pairs (_)
B6,B9: 9.. / B6 = 9 ==>  4 pairs (_) / B9 = 9 ==>  1 pairs (_)
E8,F8: 1.. / E8 = 1 ==>  1 pairs (_) / F8 = 1 ==>  2 pairs (_)
F1,F7: 6.. / F1 = 6 ==>  0 pairs (_) / F7 = 6 ==>  2 pairs (_)
H3,I3: 9.. / H3 = 9 ==>  1 pairs (_) / I3 = 9 ==>  1 pairs (_)
G5,H5: 6.. / G5 = 6 ==>  1 pairs (_) / H5 = 6 ==>  1 pairs (_)
A7,A9: 8.. / A7 = 8 ==>  0 pairs (_) / A9 = 8 ==>  1 pairs (_)
* DURATION: 0:01:33.805554  START: 05:10:03.179462  END: 05:11:36.985016 2020-12-03
* REASONING E6,F6: 4..
* DIS # F6: 4 # E1: 1,6 => CTR => E1: 2,3,4
* CNT   1 HDP CHAINS /  36 HYP OPENED
* REASONING B6,B9: 9..
* DIS # B6: 9 # I4: 2,7 => CTR => I4: 8,9
* CNT   1 HDP CHAINS /  21 HYP OPENED
* REASONING E8,F8: 1..
* DIS # F8: 1 # E1: 4,6 => CTR => E1: 1,2,3
* CNT   1 HDP CHAINS /  31 HYP OPENED
* REASONING F1,F7: 6..
* DIS # F7: 6 # E3: 1,4 => CTR => E3: 2,3,6,8
* CNT   1 HDP CHAINS /  40 HYP OPENED
* DCP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
F2,F4: 8.. / F2 = 8  =>  0 pairs (X) / F4 = 8 ==>  0 pairs (*)
* DURATION: 0:00:28.874480  START: 05:11:37.087604  END: 05:12:05.962084 2020-12-03
* REASONING F2,F4: 8..
* PRF # F4: 8 # E1: 1,4 # A3: 2,3 => SOL
* STA # F4: 8 # E1: 1,4 + A3: 2,3
* CNT   1 HDP CHAINS /  27 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

14499;kz1a;GP;23;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F2,F4: 8..:

* INC # F4: 8 # E1: 1,4 => UNS
* INC # F4: 8 # F1: 1,4 => UNS
* INC # F4: 8 # D2: 1,4 => UNS
* INC # F4: 8 # D3: 1,4 => UNS
* INC # F4: 8 # C2: 1,4 => UNS
* INC # F4: 8 # H2: 1,4 => UNS
* INC # F4: 8 # F6: 1,4 => UNS
* INC # F4: 8 # F8: 1,4 => UNS
* INC # F4: 8 # C4: 1,2 => UNS
* INC # F4: 8 # C4: 5,9 => UNS
* INC # F4: 8 # G1: 1,2 => UNS
* INC # F4: 8 # G3: 1,2 => UNS
* INC # F4: 8 # G7: 6,8 => UNS
* INC # F4: 8 # G9: 6,8 => UNS
* INC # F4: 8 # H9: 6,8 => UNS
* INC # F4: 8 # H9: 4,5,7 => UNS
* INC # F4: 8 => UNS
* INC # F2: 8 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for F2,E3: 8..:

* INC # E3: 8 # E1: 1,4 => UNS
* INC # E3: 8 # F1: 1,4 => UNS
* INC # E3: 8 # D2: 1,4 => UNS
* INC # E3: 8 # D3: 1,4 => UNS
* INC # E3: 8 # C2: 1,4 => UNS
* INC # E3: 8 # H2: 1,4 => UNS
* INC # E3: 8 # F6: 1,4 => UNS
* INC # E3: 8 # F8: 1,4 => UNS
* INC # E3: 8 # C4: 1,2 => UNS
* INC # E3: 8 # C4: 5,9 => UNS
* INC # E3: 8 # G1: 1,2 => UNS
* INC # E3: 8 # G3: 1,2 => UNS
* INC # E3: 8 # G7: 6,8 => UNS
* INC # E3: 8 # G9: 6,8 => UNS
* INC # E3: 8 # H9: 6,8 => UNS
* INC # E3: 8 # H9: 4,5,7 => UNS
* INC # E3: 8 => UNS
* INC # F2: 8 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for E6,F6: 4..:

* DIS # F6: 4 # E1: 1,6 => CTR => E1: 2,3,4
* INC # F6: 4 + E1: 2,3,4 # E3: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 2,3,4,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # G1: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # H1: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 1,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 2,3,4,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # H2: 1,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # H2: 4,5 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 1,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 7,9 => UNS
* INC # F6: 4 + E1: 2,3,4 # E8: 1,7 => UNS
* INC # F6: 4 + E1: 2,3,4 # E8: 2,4,5 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 1,7 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 8,9 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 2,3,4,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # G1: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # H1: 1,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 1,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # E3: 2,3,4,6 => UNS
* INC # F6: 4 + E1: 2,3,4 # H2: 1,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # H2: 4,5 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 1,8 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 7,9 => UNS
* INC # F6: 4 + E1: 2,3,4 # E8: 1,7 => UNS
* INC # F6: 4 + E1: 2,3,4 # E8: 2,4,5 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 1,7 => UNS
* INC # F6: 4 + E1: 2,3,4 # F4: 8,9 => UNS
* INC # F6: 4 + E1: 2,3,4 => UNS
* INC # E6: 4 # C4: 1,5 => UNS
* INC # E6: 4 # C5: 1,5 => UNS
* INC # E6: 4 # D5: 1,5 => UNS
* INC # E6: 4 # E5: 1,5 => UNS
* INC # E6: 4 => UNS
* CNT  36 HDP CHAINS /  36 HYP OPENED

Full list of HDP chains traversed for B6,B9: 9..:

* INC # B6: 9 # E6: 1,7 => UNS
* INC # B6: 9 # F6: 1,7 => UNS
* DIS # B6: 9 # I4: 2,7 => CTR => I4: 8,9
* INC # B6: 9 + I4: 8,9 # E6: 1,4 => UNS
* INC # B6: 9 + I4: 8,9 # E6: 3 => UNS
* INC # B6: 9 + I4: 8,9 # F1: 1,4 => UNS
* INC # B6: 9 + I4: 8,9 # F2: 1,4 => UNS
* INC # B6: 9 + I4: 8,9 # F8: 1,4 => UNS
* INC # B6: 9 + I4: 8,9 # H5: 8,9 => UNS
* INC # B6: 9 + I4: 8,9 # H5: 1,6 => UNS
* INC # B6: 9 + I4: 8,9 # F4: 8,9 => UNS
* INC # B6: 9 + I4: 8,9 # F4: 1,7 => UNS
* INC # B6: 9 + I4: 8,9 # I3: 8,9 => UNS
* INC # B6: 9 + I4: 8,9 # I3: 2,3,6 => UNS
* INC # B6: 9 + I4: 8,9 => UNS
* INC # B9: 9 # A6: 2,3 => UNS
* INC # B9: 9 # A6: 1 => UNS
* INC # B9: 9 # B2: 2,3 => UNS
* INC # B9: 9 # B3: 2,3 => UNS
* INC # B9: 9 # B8: 2,3 => UNS
* INC # B9: 9 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for E8,F8: 1..:

* DIS # F8: 1 # E1: 4,6 => CTR => E1: 1,2,3
* INC # F8: 1 + E1: 1,2,3 # E3: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 1,2,3,8 => UNS
* INC # F8: 1 + E1: 1,2,3 # G1: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # H1: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # F7: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # F7: 7,9 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 4,8 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 1,2,3,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # H2: 4,8 => UNS
* INC # F8: 1 + E1: 1,2,3 # H2: 1,5 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 1,2,3,8 => UNS
* INC # F8: 1 + E1: 1,2,3 # G1: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # H1: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # F7: 4,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # F7: 7,9 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 4,8 => UNS
* INC # F8: 1 + E1: 1,2,3 # E3: 1,2,3,6 => UNS
* INC # F8: 1 + E1: 1,2,3 # H2: 4,8 => UNS
* INC # F8: 1 + E1: 1,2,3 # H2: 1,5 => UNS
* INC # F8: 1 + E1: 1,2,3 => UNS
* INC # E8: 1 # E7: 4,7 => UNS
* INC # E8: 1 # F7: 4,7 => UNS
* INC # E8: 1 # E9: 4,7 => UNS
* INC # E8: 1 # H8: 4,7 => UNS
* INC # E8: 1 # H8: 5 => UNS
* INC # E8: 1 # F6: 4,7 => UNS
* INC # E8: 1 # F6: 1,9 => UNS
* INC # E8: 1 => UNS
* CNT  31 HDP CHAINS /  31 HYP OPENED

Full list of HDP chains traversed for F1,F7: 6..:

* INC # F7: 6 # E1: 1,4 => UNS
* INC # F7: 6 # D2: 1,4 => UNS
* INC # F7: 6 # F2: 1,4 => UNS
* INC # F7: 6 # D3: 1,4 => UNS
* DIS # F7: 6 # E3: 1,4 => CTR => E3: 2,3,6,8
* INC # F7: 6 + E3: 2,3,6,8 # C1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # G1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # H1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F6: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F8: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # E1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # D2: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F2: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # D3: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # C1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # G1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # H1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F6: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F8: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # E4: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # D5: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # E5: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # C4: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # C4: 2,9 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # E1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # D2: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F2: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # D3: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # C1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # G1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # H1: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F6: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # F8: 1,4 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # E4: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # D5: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # E5: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # C4: 1,5 => UNS
* INC # F7: 6 + E3: 2,3,6,8 # C4: 2,9 => UNS
* INC # F7: 6 + E3: 2,3,6,8 => UNS
* INC # F1: 6 => UNS
* CNT  40 HDP CHAINS /  40 HYP OPENED

Full list of HDP chains traversed for H3,I3: 9..:

* INC # H3: 9 # E6: 1,7 => UNS
* INC # H3: 9 # F6: 1,7 => UNS
* INC # H3: 9 => UNS
* INC # I3: 9 # I4: 2,7 => UNS
* INC # I3: 9 # I4: 8 => UNS
* INC # I3: 9 => UNS
* CNT   6 HDP CHAINS /   6 HYP OPENED

Full list of HDP chains traversed for G5,H5: 6..:

* INC # G5: 6 # G7: 4,8 => UNS
* INC # G5: 6 # H9: 4,8 => UNS
* INC # G5: 6 # G3: 4,8 => UNS
* INC # G5: 6 # G3: 1,2,3 => UNS
* INC # G5: 6 => UNS
* INC # H5: 6 # G4: 1,8 => UNS
* INC # H5: 6 # G4: 2 => UNS
* INC # H5: 6 # E5: 1,8 => UNS
* INC # H5: 6 # E5: 3,5 => UNS
* INC # H5: 6 # G3: 1,8 => UNS
* INC # H5: 6 # G3: 2,3,4,6 => UNS
* INC # H5: 6 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for A7,A9: 8..:

* INC # A9: 8 # G7: 4,6 => UNS
* INC # A9: 8 # H9: 4,6 => UNS
* INC # A9: 8 # E9: 4,6 => UNS
* INC # A9: 8 # E9: 2,5,7 => UNS
* INC # A9: 8 # G1: 4,6 => UNS
* INC # A9: 8 # G3: 4,6 => UNS
* INC # A9: 8 => UNS
* INC # A7: 8 => UNS
* CNT   8 HDP CHAINS /   8 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for F2,F4: 8..:

* INC # F4: 8 # E1: 1,4 => UNS
* INC # F4: 8 # F1: 1,4 => UNS
* INC # F4: 8 # D2: 1,4 => UNS
* INC # F4: 8 # D3: 1,4 => UNS
* INC # F4: 8 # C2: 1,4 => UNS
* INC # F4: 8 # H2: 1,4 => UNS
* INC # F4: 8 # F6: 1,4 => UNS
* INC # F4: 8 # F8: 1,4 => UNS
* INC # F4: 8 # C4: 1,2 => UNS
* INC # F4: 8 # C4: 5,9 => UNS
* INC # F4: 8 # G1: 1,2 => UNS
* INC # F4: 8 # G3: 1,2 => UNS
* INC # F4: 8 # G7: 6,8 => UNS
* INC # F4: 8 # G9: 6,8 => UNS
* INC # F4: 8 # H9: 6,8 => UNS
* INC # F4: 8 # H9: 4,5,7 => UNS
* INC # F4: 8 # E1: 1,4 # C1: 1,4 => UNS
* INC # F4: 8 # E1: 1,4 # G1: 1,4 => UNS
* INC # F4: 8 # E1: 1,4 # H1: 1,4 => UNS
* INC # F4: 8 # E1: 1,4 # B2: 2,3 => UNS
* INC # F4: 8 # E1: 1,4 # C2: 2,3 => UNS
* INC # F4: 8 # E1: 1,4 # I2: 2,3 => UNS
* INC # F4: 8 # E1: 1,4 # C2: 1,4 => UNS
* INC # F4: 8 # E1: 1,4 # H2: 1,4 => UNS
* PRF # F4: 8 # E1: 1,4 # A3: 2,3 => SOL
* STA # F4: 8 # E1: 1,4 + A3: 2,3
* CNT  25 HDP CHAINS /  27 HYP OPENED