Analysis of xx-ph-01388806-14_04-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.76....7.54.........8.9..4..6.83...3.....6.....3..492......94.9..4.6....4.....1 initial

Autosolve

position: 98.76.4..7.54......4..8.9..4..6.83...3...4.6.....3..492......94.9..4.6....4.....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

Time used: 0:00:00.000021

List of important HDP chains detected for C4,E4: 9..:

* DIS # E4: 9 # B2: 1,2 => CTR => B2: 6
* DIS # E4: 9 + B2: 6 # H2: 1,2 => CTR => H2: 3,8
* DIS # E4: 9 + B2: 6 + H2: 3,8 # G2: 8 => CTR => G2: 1,2
* PRF # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # I5: 2,5 => SOL
* STA # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 + I5: 2,5
* CNT   4 HDP CHAINS /  20 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

98.76....7.54.........8.9..4..6.83...3.....6.....3..492......94.9..4.6....4.....1 initial
98.76.4..7.54......4..8.9..4..6.83...3...4.6.....3..492......94.9..4.6....4.....1 autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
I2,I3: 6.. / I2 = 6  =>  1 pairs (_) / I3 = 6  =>  2 pairs (_)
F7,F9: 6.. / F7 = 6  =>  0 pairs (_) / F9 = 6  =>  3 pairs (_)
B2,I2: 6.. / B2 = 6  =>  2 pairs (_) / I2 = 6  =>  1 pairs (_)
H3,I3: 7.. / H3 = 7  =>  0 pairs (_) / I3 = 7  =>  2 pairs (_)
E2,F2: 9.. / E2 = 9  =>  0 pairs (_) / F2 = 9  =>  2 pairs (_)
C4,C5: 9.. / C4 = 9  =>  0 pairs (_) / C5 = 9  =>  2 pairs (_)
C4,E4: 9.. / C4 = 9  =>  0 pairs (_) / E4 = 9  =>  2 pairs (_)
D5,D9: 9.. / D5 = 9  =>  0 pairs (_) / D9 = 9  =>  2 pairs (_)
F2,F9: 9.. / F2 = 9  =>  2 pairs (_) / F9 = 9  =>  0 pairs (_)
* DURATION: 0:00:06.421726  START: 13:37:29.974742  END: 13:37:36.396468 2020-11-01
* CP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F7,F9: 6.. / F7 = 6 ==>  0 pairs (_) / F9 = 6 ==>  3 pairs (_)
B2,I2: 6.. / B2 = 6 ==>  2 pairs (_) / I2 = 6 ==>  1 pairs (_)
I2,I3: 6.. / I2 = 6 ==>  1 pairs (_) / I3 = 6 ==>  2 pairs (_)
F2,F9: 9.. / F2 = 9 ==>  2 pairs (_) / F9 = 9 ==>  0 pairs (_)
D5,D9: 9.. / D5 = 9 ==>  0 pairs (_) / D9 = 9 ==>  2 pairs (_)
C4,E4: 9.. / C4 = 9  =>  0 pairs (X) / E4 = 9 ==>  0 pairs (*)
* DURATION: 0:01:09.073142  START: 13:37:36.397419  END: 13:38:45.470561 2020-11-01
* REASONING C4,E4: 9..
* DIS # E4: 9 # B2: 1,2 => CTR => B2: 6
* DIS # E4: 9 + B2: 6 # H2: 1,2 => CTR => H2: 3,8
* DIS # E4: 9 + B2: 6 + H2: 3,8 # G2: 8 => CTR => G2: 1,2
* PRF # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # I5: 2,5 => SOL
* STA # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 + I5: 2,5
* CNT   4 HDP CHAINS /  20 HYP OPENED
* DCP COUNT: (6)
* SOLUTION FOUND

Header Info

1388806;14_04;GP;26;11.40;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F7,F9: 6..:

* INC # F9: 6 # F1: 1,2 => UNS
* INC # F9: 6 # D3: 1,2 => UNS
* INC # F9: 6 # F3: 1,2 => UNS
* INC # F9: 6 # B2: 1,2 => UNS
* INC # F9: 6 # G2: 1,2 => UNS
* INC # F9: 6 # H2: 1,2 => UNS
* INC # F9: 6 # E4: 1,2 => UNS
* INC # F9: 6 # E5: 1,2 => UNS
* INC # F9: 6 # H1: 2,5 => UNS
* INC # F9: 6 # H3: 2,5 => UNS
* INC # F9: 6 # I3: 2,5 => UNS
* INC # F9: 6 # F1: 2,5 => UNS
* INC # F9: 6 # F1: 1,3 => UNS
* INC # F9: 6 # I4: 2,5 => UNS
* INC # F9: 6 # I5: 2,5 => UNS
* INC # F9: 6 # I8: 2,5 => UNS
* INC # F9: 6 # B7: 5,7 => UNS
* INC # F9: 6 # B7: 1,6 => UNS
* INC # F9: 6 # E9: 5,7 => UNS
* INC # F9: 6 # G9: 5,7 => UNS
* INC # F9: 6 # H9: 5,7 => UNS
* INC # F9: 6 # B4: 5,7 => UNS
* INC # F9: 6 # B6: 5,7 => UNS
* INC # F9: 6 => UNS
* INC # F7: 6 => UNS
* CNT  25 HDP CHAINS /  25 HYP OPENED

Full list of HDP chains traversed for B2,I2: 6..:

* INC # B2: 6 # C1: 1,3 => UNS
* INC # B2: 6 # C3: 1,3 => UNS
* INC # B2: 6 # D3: 1,3 => UNS
* INC # B2: 6 # F3: 1,3 => UNS
* INC # B2: 6 # A8: 1,3 => UNS
* INC # B2: 6 # A8: 5,8 => UNS
* INC # B2: 6 # B7: 5,7 => UNS
* INC # B2: 6 # B7: 1 => UNS
* INC # B2: 6 # E9: 5,7 => UNS
* INC # B2: 6 # F9: 5,7 => UNS
* INC # B2: 6 # G9: 5,7 => UNS
* INC # B2: 6 # B4: 5,7 => UNS
* INC # B2: 6 # B6: 5,7 => UNS
* INC # B2: 6 => UNS
* INC # I2: 6 # C1: 1,2 => UNS
* INC # I2: 6 # C3: 1,2 => UNS
* INC # I2: 6 # E2: 1,2 => UNS
* INC # I2: 6 # F2: 1,2 => UNS
* INC # I2: 6 # G2: 1,2 => UNS
* INC # I2: 6 # H2: 1,2 => UNS
* INC # I2: 6 # B4: 1,2 => UNS
* INC # I2: 6 # B6: 1,2 => UNS
* INC # I2: 6 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for I2,I3: 6..:

* INC # I3: 6 # C1: 1,3 => UNS
* INC # I3: 6 # C3: 1,3 => UNS
* INC # I3: 6 # D3: 1,3 => UNS
* INC # I3: 6 # F3: 1,3 => UNS
* INC # I3: 6 # A8: 1,3 => UNS
* INC # I3: 6 # A8: 5,8 => UNS
* INC # I3: 6 # B7: 5,7 => UNS
* INC # I3: 6 # B7: 1 => UNS
* INC # I3: 6 # E9: 5,7 => UNS
* INC # I3: 6 # F9: 5,7 => UNS
* INC # I3: 6 # G9: 5,7 => UNS
* INC # I3: 6 # B4: 5,7 => UNS
* INC # I3: 6 # B6: 5,7 => UNS
* INC # I3: 6 => UNS
* INC # I2: 6 # C1: 1,2 => UNS
* INC # I2: 6 # C3: 1,2 => UNS
* INC # I2: 6 # E2: 1,2 => UNS
* INC # I2: 6 # F2: 1,2 => UNS
* INC # I2: 6 # G2: 1,2 => UNS
* INC # I2: 6 # H2: 1,2 => UNS
* INC # I2: 6 # B4: 1,2 => UNS
* INC # I2: 6 # B6: 1,2 => UNS
* INC # I2: 6 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for F2,F9: 9..:

* INC # F2: 9 # F1: 1,2 => UNS
* INC # F2: 9 # D3: 1,2 => UNS
* INC # F2: 9 # F3: 1,2 => UNS
* INC # F2: 9 # B2: 1,2 => UNS
* INC # F2: 9 # G2: 1,2 => UNS
* INC # F2: 9 # H2: 1,2 => UNS
* INC # F2: 9 # E4: 1,2 => UNS
* INC # F2: 9 # E5: 1,2 => UNS
* INC # F2: 9 # H1: 2,5 => UNS
* INC # F2: 9 # H3: 2,5 => UNS
* INC # F2: 9 # I3: 2,5 => UNS
* INC # F2: 9 # F1: 2,5 => UNS
* INC # F2: 9 # F1: 1,3 => UNS
* INC # F2: 9 # I4: 2,5 => UNS
* INC # F2: 9 # I5: 2,5 => UNS
* INC # F2: 9 # I8: 2,5 => UNS
* INC # F2: 9 => UNS
* INC # F9: 9 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for D5,D9: 9..:

* INC # D9: 9 # F1: 1,2 => UNS
* INC # D9: 9 # D3: 1,2 => UNS
* INC # D9: 9 # F3: 1,2 => UNS
* INC # D9: 9 # B2: 1,2 => UNS
* INC # D9: 9 # G2: 1,2 => UNS
* INC # D9: 9 # H2: 1,2 => UNS
* INC # D9: 9 # E4: 1,2 => UNS
* INC # D9: 9 # E5: 1,2 => UNS
* INC # D9: 9 # H1: 2,5 => UNS
* INC # D9: 9 # H3: 2,5 => UNS
* INC # D9: 9 # I3: 2,5 => UNS
* INC # D9: 9 # F1: 2,5 => UNS
* INC # D9: 9 # F1: 1,3 => UNS
* INC # D9: 9 # I4: 2,5 => UNS
* INC # D9: 9 # I5: 2,5 => UNS
* INC # D9: 9 # I8: 2,5 => UNS
* INC # D9: 9 => UNS
* INC # D5: 9 => UNS
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for C4,E4: 9..:

* INC # E4: 9 # F1: 1,2 => UNS
* INC # E4: 9 # D3: 1,2 => UNS
* INC # E4: 9 # F3: 1,2 => UNS
* DIS # E4: 9 # B2: 1,2 => CTR => B2: 6
* INC # E4: 9 + B2: 6 # G2: 1,2 => UNS
* DIS # E4: 9 + B2: 6 # H2: 1,2 => CTR => H2: 3,8
* INC # E4: 9 + B2: 6 + H2: 3,8 # G2: 1,2 => UNS
* DIS # E4: 9 + B2: 6 + H2: 3,8 # G2: 8 => CTR => G2: 1,2
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # E5: 1,2 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # E5: 5,7 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # F1: 1,2 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # D3: 1,2 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # F3: 1,2 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # E5: 1,2 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # E5: 5,7 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # H1: 2,5 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # H1: 1 => UNS
* INC # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # I4: 2,5 => UNS
* PRF # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 # I5: 2,5 => SOL
* STA # E4: 9 + B2: 6 + H2: 3,8 + G2: 1,2 + I5: 2,5
* CNT  19 HDP CHAINS /  20 HYP OPENED