Analysis of xx-ph-00712925-12_12_19-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: ........1.......2...3.145....5.6..7..6..458..8.49.......6..3....3.1....65...863.. initial

Autosolve

position: ........1.......2...3.145....5.6..7..6..458..8.49.......6..3....3.1....65...863.. 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: 0:00:00.000007

List of important HDP chains detected for G6,H6: 6..:

* DIS # H6: 6 # D1: 2,8 => CTR => D1: 3,5,6,7
* CNT   1 HDP CHAINS /  56 HYP OPENED

List of important HDP chains detected for A4,A5: 3..:

* DIS # A5: 3 # D1: 2,7 => CTR => D1: 3,5,6,8
* DIS # A5: 3 + D1: 3,5,6,8 # I4: 2,9 => CTR => I4: 3,4
* CNT   2 HDP CHAINS /  56 HYP OPENED

List of important HDP chains detected for I6,I7: 5..:

* PRF # I7: 5 # H1: 6,9 => SOL
* STA # I7: 5 + H1: 6,9
* CNT   1 HDP CHAINS /   2 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

........1.......2...3.145....5.6..7..6..458..8.49.......6..3....3.1....65...863.. initial
........1.......2...3.145....5.6..7..6..458..8.49.......6..3....3.1....65...863.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
F4,F6: 1.. / F4 = 1  =>  2 pairs (_) / F6 = 1  =>  3 pairs (_)
H1,I2: 3.. / H1 = 3  =>  1 pairs (_) / I2 = 3  =>  2 pairs (_)
A4,A5: 3.. / A4 = 3  =>  1 pairs (_) / A5 = 3  =>  3 pairs (_)
G4,I4: 4.. / G4 = 4  =>  2 pairs (_) / I4 = 4  =>  0 pairs (_)
D7,D9: 4.. / D7 = 4  =>  1 pairs (_) / D9 = 4  =>  1 pairs (_)
B1,B2: 5.. / B1 = 5  =>  0 pairs (_) / B2 = 5  =>  0 pairs (_)
H6,I6: 5.. / H6 = 5  =>  2 pairs (_) / I6 = 5  =>  0 pairs (_)
E8,H8: 5.. / E8 = 5  =>  0 pairs (_) / H8 = 5  =>  0 pairs (_)
I6,I7: 5.. / I6 = 5  =>  0 pairs (_) / I7 = 5  =>  2 pairs (_)
G6,H6: 6.. / G6 = 6  =>  0 pairs (_) / H6 = 6  =>  4 pairs (_)
D4,F4: 8.. / D4 = 8  =>  1 pairs (_) / F4 = 8  =>  4 pairs (_)
B7,C8: 8.. / B7 = 8  =>  1 pairs (_) / C8 = 8  =>  0 pairs (_)
C8,H8: 8.. / C8 = 8  =>  0 pairs (_) / H8 = 8  =>  1 pairs (_)
* DURATION: 0:00:08.136513  START: 04:50:44.953123  END: 04:50:53.089636 2020-12-30
* CP COUNT: (13)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
D4,F4: 8.. / D4 = 8 ==>  1 pairs (_) / F4 = 8 ==>  4 pairs (_)
G6,H6: 6.. / G6 = 6 ==>  0 pairs (_) / H6 = 6 ==>  4 pairs (_)
F4,F6: 1.. / F4 = 1 ==>  2 pairs (_) / F6 = 1 ==>  3 pairs (_)
A4,A5: 3.. / A4 = 3 ==>  1 pairs (_) / A5 = 3 ==>  4 pairs (_)
H1,I2: 3.. / H1 = 3 ==>  1 pairs (_) / I2 = 3 ==>  2 pairs (_)
I6,I7: 5.. / I6 = 5  =>  0 pairs (X) / I7 = 5 ==>  0 pairs (*)
* DURATION: 0:01:34.414836  START: 04:50:53.090154  END: 04:52:27.504990 2020-12-30
* REASONING G6,H6: 6..
* DIS # H6: 6 # D1: 2,8 => CTR => D1: 3,5,6,7
* CNT   1 HDP CHAINS /  56 HYP OPENED
* REASONING A4,A5: 3..
* DIS # A5: 3 # D1: 2,7 => CTR => D1: 3,5,6,8
* DIS # A5: 3 + D1: 3,5,6,8 # I4: 2,9 => CTR => I4: 3,4
* CNT   2 HDP CHAINS /  56 HYP OPENED
* REASONING I6,I7: 5..
* PRF # I7: 5 # H1: 6,9 => SOL
* STA # I7: 5 + H1: 6,9
* CNT   1 HDP CHAINS /   2 HYP OPENED
* DCP COUNT: (6)
* SOLUTION FOUND

Header Info

712925;12_12_19;dob;25;11.30;11.30;9.80

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for D4,F4: 8..:

* INC # F4: 8 # E1: 7,9 => UNS
* INC # F4: 8 # F1: 7,9 => UNS
* INC # F4: 8 # E2: 7,9 => UNS
* INC # F4: 8 # A2: 7,9 => UNS
* INC # F4: 8 # B2: 7,9 => UNS
* INC # F4: 8 # C2: 7,9 => UNS
* INC # F4: 8 # G2: 7,9 => UNS
* INC # F4: 8 # I2: 7,9 => UNS
* INC # F4: 8 # F8: 7,9 => UNS
* INC # F4: 8 # F8: 2 => UNS
* INC # F4: 8 # A5: 2,7 => UNS
* INC # F4: 8 # C5: 2,7 => UNS
* INC # F4: 8 # E6: 2,7 => UNS
* INC # F4: 8 # E6: 3 => UNS
* INC # F4: 8 # B1: 2,7 => UNS
* INC # F4: 8 # B3: 2,7 => UNS
* INC # F4: 8 # B7: 2,7 => UNS
* INC # F4: 8 # B9: 2,7 => UNS
* INC # F4: 8 # D5: 2,3 => UNS
* INC # F4: 8 # E6: 2,3 => UNS
* INC # F4: 8 # A4: 2,3 => UNS
* INC # F4: 8 # I4: 2,3 => UNS
* INC # F4: 8 # D1: 2,3 => UNS
* INC # F4: 8 # D1: 5,6,7,8 => UNS
* INC # F4: 8 => UNS
* INC # D4: 8 # F6: 1,2 => UNS
* INC # D4: 8 # F6: 7 => UNS
* INC # D4: 8 # A4: 1,2 => UNS
* INC # D4: 8 # B4: 1,2 => UNS
* INC # D4: 8 # G4: 1,2 => UNS
* INC # D4: 8 => UNS
* CNT  31 HDP CHAINS /  31 HYP OPENED

Full list of HDP chains traversed for G6,H6: 6..:

* INC # H6: 6 # H1: 8,9 => UNS
* INC # H6: 6 # I2: 8,9 => UNS
* INC # H6: 6 # I3: 8,9 => UNS
* INC # H6: 6 # B3: 8,9 => UNS
* INC # H6: 6 # B3: 2,7 => UNS
* INC # H6: 6 # H7: 8,9 => UNS
* INC # H6: 6 # H8: 8,9 => UNS
* INC # H6: 6 # F4: 2,8 => UNS
* INC # H6: 6 # F4: 1 => UNS
* DIS # H6: 6 # D1: 2,8 => CTR => D1: 3,5,6,7
* INC # H6: 6 + D1: 3,5,6,7 # D3: 2,8 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 2,8 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 6,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F4: 2,8 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F4: 1 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 2,8 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 6,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F6: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F6: 1 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # A5: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # C5: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D7: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D9: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G4: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G4: 4,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # B6: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F6: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G7: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G7: 4,7,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # H1: 8,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # I2: 8,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # I3: 8,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # B3: 8,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # B3: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # H7: 8,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # H8: 8,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F4: 2,8 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F4: 1 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 2,8 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 6,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F6: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F6: 1 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # A5: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # C5: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D3: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D7: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # D9: 2,7 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G4: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G4: 4,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # B6: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # F6: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G7: 1,2 => UNS
* INC # H6: 6 + D1: 3,5,6,7 # G7: 4,7,9 => UNS
* INC # H6: 6 + D1: 3,5,6,7 => UNS
* INC # G6: 6 => UNS
* CNT  56 HDP CHAINS /  56 HYP OPENED

Full list of HDP chains traversed for F4,F6: 1..:

* INC # F6: 1 # A5: 2,7 => UNS
* INC # F6: 1 # C5: 2,7 => UNS
* INC # F6: 1 # E6: 2,7 => UNS
* INC # F6: 1 # E6: 3 => UNS
* INC # F6: 1 # B1: 2,7 => UNS
* INC # F6: 1 # B3: 2,7 => UNS
* INC # F6: 1 # B7: 2,7 => UNS
* INC # F6: 1 # B9: 2,7 => UNS
* INC # F6: 1 # D4: 2,8 => UNS
* INC # F6: 1 # D4: 3 => UNS
* INC # F6: 1 # F1: 2,8 => UNS
* INC # F6: 1 # F1: 7,9 => UNS
* INC # F6: 1 => UNS
* INC # F4: 1 # A4: 2,9 => UNS
* INC # F4: 1 # A5: 2,9 => UNS
* INC # F4: 1 # C5: 2,9 => UNS
* INC # F4: 1 # G4: 2,9 => UNS
* INC # F4: 1 # I4: 2,9 => UNS
* INC # F4: 1 # B1: 2,9 => UNS
* INC # F4: 1 # B3: 2,9 => UNS
* INC # F4: 1 # B7: 2,9 => UNS
* INC # F4: 1 # B9: 2,9 => UNS
* INC # F4: 1 # D5: 2,7 => UNS
* INC # F4: 1 # E6: 2,7 => UNS
* INC # F4: 1 # B6: 2,7 => UNS
* INC # F4: 1 # B6: 1 => UNS
* INC # F4: 1 # F1: 2,7 => UNS
* INC # F4: 1 # F8: 2,7 => UNS
* INC # F4: 1 => UNS
* CNT  29 HDP CHAINS /  29 HYP OPENED

Full list of HDP chains traversed for A4,A5: 3..:

* INC # A5: 3 # E6: 2,7 => UNS
* INC # A5: 3 # F6: 2,7 => UNS
* INC # A5: 3 # C5: 2,7 => UNS
* INC # A5: 3 # C5: 1,9 => UNS
* DIS # A5: 3 # D1: 2,7 => CTR => D1: 3,5,6,8
* INC # A5: 3 + D1: 3,5,6,8 # D3: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # D7: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # D9: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # E6: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # F6: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # C5: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # C5: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # D3: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # D7: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # D9: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # G4: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # G4: 2,4 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # C5: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # C5: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # H7: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # H9: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 # G4: 2,9 => UNS
* DIS # A5: 3 + D1: 3,5,6,8 # I4: 2,9 => CTR => I4: 3,4
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # G4: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # G4: 1,4 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 1,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # I7: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # I9: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # E6: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # F6: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # D3: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # D7: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # D9: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # I2: 3,4 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # I2: 7,8,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # G4: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # G4: 2,4 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 2,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # H7: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # H9: 1,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # G4: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # G4: 1,4 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # C5: 1,7 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # I7: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 # I9: 2,9 => UNS
* INC # A5: 3 + D1: 3,5,6,8 + I4: 3,4 => UNS
* INC # A4: 3 # F4: 2,8 => UNS
* INC # A4: 3 # F4: 1 => UNS
* INC # A4: 3 # D1: 2,8 => UNS
* INC # A4: 3 # D3: 2,8 => UNS
* INC # A4: 3 => UNS
* CNT  56 HDP CHAINS /  56 HYP OPENED

Full list of HDP chains traversed for H1,I2: 3..:

* INC # I2: 3 # G4: 2,9 => UNS
* INC # I2: 3 # I4: 2,9 => UNS
* INC # I2: 3 # A5: 2,9 => UNS
* INC # I2: 3 # C5: 2,9 => UNS
* INC # I2: 3 # I7: 2,9 => UNS
* INC # I2: 3 # I9: 2,9 => UNS
* INC # I2: 3 # I7: 2,5 => UNS
* INC # I2: 3 # I7: 4,7,8,9 => UNS
* INC # I2: 3 => UNS
* INC # H1: 3 # G4: 1,9 => UNS
* INC # H1: 3 # G4: 2,4 => UNS
* INC # H1: 3 # A5: 1,9 => UNS
* INC # H1: 3 # C5: 1,9 => UNS
* INC # H1: 3 # H7: 1,9 => UNS
* INC # H1: 3 # H9: 1,9 => UNS
* INC # H1: 3 => UNS
* CNT  16 HDP CHAINS /  16 HYP OPENED

Full list of HDP chains traversed for I6,I7: 5..:

* PRF # I7: 5 # H1: 6,9 => SOL
* STA # I7: 5 + H1: 6,9
* CNT   1 HDP CHAINS /   2 HYP OPENED