Analysis of xx-ph-00653197-12_12_19-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: .......12..1..3....4..5.6.....7.2.3..8..9.4..7.......6..8.6.....5.9...6.4....59.. initial

Autosolve

position: .......12..1..3....4..5.6.....7.2.3..8..9.4..7.......6..8.6.....5.9...6.4....59.. autosolve
Autosolve

Pair Reduction Variants

Pair Reduction Analysis

Pair Reduction Analysis

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

Pair Reduction

Pair Reduction

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

Deep Pair Reduction

Deep Pair Reduction

Time used: 0:00:12.194611

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

Deep Constraint Pair Analysis

Deep Constraint Pair Analysis

Time used: 0:00:00.000014

List of important HDP chains detected for F1,F5: 6..:

* DIS # F1: 6 # I3: 7,8 => CTR => I3: 3
* DIS # F1: 6 + I3: 3 # I4: 1,8 => CTR => I4: 5,9
* PRF # F1: 6 + I3: 3 + I4: 5,9 # G6: 1,8 => SOL
* STA # F1: 6 + I3: 3 + I4: 5,9 + G6: 1,8
* CNT   3 HDP CHAINS /  24 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

.......12..1..3....4..5.6.....7.2.3..8..9.4..7.......6..8.6.....5.9...6.4....59.. initial
.......12..1..3....4..5.6.....7.2.3..8..9.4..7.......6..8.6.....5.9...6.4....59.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* PAIRS (1)
F5: 1,6

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D3,F3: 1.. / D3 = 1  =>  1 pairs (_) / F3 = 1  =>  3 pairs (_)
G1,I3: 3.. / G1 = 3  =>  1 pairs (_) / I3 = 3  =>  1 pairs (_)
H2,I2: 4.. / H2 = 4  =>  1 pairs (_) / I2 = 4  =>  2 pairs (_)
C4,C6: 4.. / C4 = 4  =>  2 pairs (_) / C6 = 4  =>  3 pairs (_)
C4,E4: 4.. / C4 = 4  =>  2 pairs (_) / E4 = 4  =>  3 pairs (_)
H2,H7: 4.. / H2 = 4  =>  1 pairs (_) / H7 = 4  =>  2 pairs (_)
D5,D6: 5.. / D5 = 5  =>  3 pairs (_) / D6 = 5  =>  1 pairs (_)
D5,F5: 6.. / D5 = 6  => 11 pairs (_) / F5 = 6  =>  0 pairs (_)
B9,C9: 6.. / B9 = 6  =>  2 pairs (_) / C9 = 6  =>  1 pairs (_)
F1,F5: 6.. / F1 = 6  => 11 pairs (_) / F5 = 6  =>  0 pairs (_)
H5,I5: 7.. / H5 = 7  =>  4 pairs (_) / I5 = 7  =>  2 pairs (_)
F1,F3: 9.. / F1 = 9  =>  0 pairs (_) / F3 = 9  =>  6 pairs (_)
I4,H6: 9.. / I4 = 9  =>  2 pairs (_) / H6 = 9  =>  2 pairs (_)
A7,B7: 9.. / A7 = 9  =>  1 pairs (_) / B7 = 9  =>  2 pairs (_)
* DURATION: 0:00:10.128502  START: 12:12:34.614552  END: 12:12:44.743054 2020-12-28
* CP COUNT: (14)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F1,F5: 6.. / F1 = 6 ==>  0 pairs (*) / F5 = 6  =>  0 pairs (X)
* DURATION: 0:00:27.538479  START: 12:12:59.167990  END: 12:13:26.706469 2020-12-28
* REASONING F1,F5: 6..
* DIS # F1: 6 # I3: 7,8 => CTR => I3: 3
* DIS # F1: 6 + I3: 3 # I4: 1,8 => CTR => I4: 5,9
* PRF # F1: 6 + I3: 3 + I4: 5,9 # G6: 1,8 => SOL
* STA # F1: 6 + I3: 3 + I4: 5,9 + G6: 1,8
* CNT   3 HDP CHAINS /  24 HYP OPENED
* DCP COUNT: (1)
* SOLUTION FOUND

Header Info

653197;12_12_19;dob;23;11.30;11.30;2.60

Appendix: Full HDP Chains

A1. Pair Reduction Analysis

Full list of HDP chains traversed:

* INC # D5: 1,6 => UNS
* INC # D5: 3,5 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

A2. Pair Reduction

Full list of HDP chains traversed:

* INC # D5: 1,6 => UNS
* INC # D5: 3,5 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

A3. Deep Pair Reduction

Full list of HDP chains traversed:

* INC # D5: 1,6 => UNS
* INC # D5: 3,5 => UNS
* INC # D5: 1,6 # A1: 6,9 => UNS
* INC # D5: 1,6 # B1: 6,9 => UNS
* INC # D5: 1,6 # C1: 6,9 => UNS
* INC # D5: 1,6 # E1: 4,8 => UNS
* INC # D5: 1,6 # E8: 4,8 => UNS
* INC # D5: 1,6 # F8: 4,8 => UNS
* INC # D5: 1,6 # F8: 7 => UNS
* INC # D5: 1,6 # H5: 5,7 => UNS
* INC # D5: 1,6 # H5: 2 => UNS
* INC # D5: 1,6 # I2: 5,7 => UNS
* INC # D5: 1,6 # I7: 5,7 => UNS
* INC # D5: 1,6 # F8: 4,7 => UNS
* INC # D5: 1,6 # F8: 8 => UNS
* INC # D5: 1,6 # H7: 4,7 => UNS
* INC # D5: 1,6 # I7: 4,7 => UNS
* INC # D5: 1,6 => UNS
* INC # D5: 3,5 # D6: 3,5 => UNS
* INC # D5: 3,5 # D6: 1,4,8 => UNS
* INC # D5: 3,5 # A5: 3,5 => UNS
* INC # D5: 3,5 # C5: 3,5 => UNS
* INC # D5: 3,5 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

A4. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F1,F5: 6..:

* INC # F1: 6 # B9: 6,7 => UNS
* INC # F1: 6 # B9: 1,2,3 => UNS
* INC # F1: 6 # E1: 4,8 => UNS
* INC # F1: 6 # E1: 7 => UNS
* INC # F1: 6 # E2: 2,8 => UNS
* INC # F1: 6 # E2: 7 => UNS
* INC # F1: 6 # D9: 2,8 => UNS
* INC # F1: 6 # D9: 3 => UNS
* INC # F1: 6 # G1: 7,8 => UNS
* INC # F1: 6 # G2: 7,8 => UNS
* DIS # F1: 6 # I3: 7,8 => CTR => I3: 3
* INC # F1: 6 + I3: 3 # H9: 7,8 => UNS
* INC # F1: 6 + I3: 3 # H9: 2 => UNS
* INC # F1: 6 + I3: 3 # G1: 7,8 => UNS
* INC # F1: 6 + I3: 3 # G2: 7,8 => UNS
* INC # F1: 6 + I3: 3 # H9: 7,8 => UNS
* INC # F1: 6 + I3: 3 # H9: 2 => UNS
* INC # F1: 6 + I3: 3 # E1: 4,8 => UNS
* INC # F1: 6 + I3: 3 # E8: 4,8 => UNS
* INC # F1: 6 + I3: 3 # F8: 4,8 => UNS
* INC # F1: 6 + I3: 3 # F8: 7 => UNS
* DIS # F1: 6 + I3: 3 # I4: 1,8 => CTR => I4: 5,9
* PRF # F1: 6 + I3: 3 + I4: 5,9 # G6: 1,8 => SOL
* STA # F1: 6 + I3: 3 + I4: 5,9 + G6: 1,8
* CNT  23 HDP CHAINS /  24 HYP OPENED