Analysis of xx-ph-00032547-2012_03_13-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7..6....5.9...........944....7.3..2.6..7.......3..5.1...2.....81...7.....6.1.. initial

Autosolve

position: 98.7..6....5.9...7.......944....7.3..2.6..7.......3..5.1..72.....81...7.....6.1.. 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

Time used: 0:00:00.000012

List of important HDP chains detected for A5,A6: 8..:

* DIS # A5: 8 # H6: 1,4 => CTR => H6: 2,6,8
* DIS # A5: 8 + H6: 2,6,8 # I4: 1,9 => CTR => I4: 2,6,8
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 # E1: 4,5 => CTR => E1: 2,3
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 # E8: 3 => CTR => E8: 4,5
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 # F5: 9 => CTR => F5: 4,5
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 # C9: 2,4 => CTR => C9: 7,9
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 # A2: 3 => CTR => A2: 1,6
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 + A2: 1,6 # D2: 2,8 => CTR => D2: 4
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 + A2: 1,6 + D2: 4 => CTR => A5: 1,3,5
* STA A5: 1,3,5
* CNT   9 HDP CHAINS /  18 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

98.7..6....5.9...........944....7.3..2.6..7.......3..5.1...2.....81...7.....6.1.. initial
98.7..6....5.9...7.......944....7.3..2.6..7.......3..5.1..72.....81...7.....6.1.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
A5,C5: 3.. / A5 = 3  =>  2 pairs (_) / C5 = 3  =>  0 pairs (_)
C1,B2: 4.. / C1 = 4  =>  2 pairs (_) / B2 = 4  =>  0 pairs (_)
H1,G3: 5.. / H1 = 5  =>  1 pairs (_) / G3 = 5  =>  1 pairs (_)
B4,A5: 5.. / B4 = 5  =>  0 pairs (_) / A5 = 5  =>  3 pairs (_)
F2,F3: 6.. / F2 = 6  =>  1 pairs (_) / F3 = 6  =>  1 pairs (_)
I4,H6: 6.. / I4 = 6  =>  3 pairs (_) / H6 = 6  =>  1 pairs (_)
H6,H7: 6.. / H6 = 6  =>  1 pairs (_) / H7 = 6  =>  3 pairs (_)
A5,A6: 8.. / A5 = 8  =>  2 pairs (_) / A6 = 8  =>  0 pairs (_)
* DURATION: 0:00:04.831492  START: 16:46:40.770204  END: 16:46:45.601696 2020-12-11
* CP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
H6,H7: 6.. / H6 = 6 ==>  1 pairs (_) / H7 = 6 ==>  3 pairs (_)
I4,H6: 6.. / I4 = 6 ==>  3 pairs (_) / H6 = 6 ==>  1 pairs (_)
B4,A5: 5.. / B4 = 5 ==>  0 pairs (_) / A5 = 5 ==>  3 pairs (_)
A5,A6: 8.. / A5 = 8 ==>  0 pairs (X) / A6 = 8  =>  0 pairs (_)
C1,B2: 4.. / C1 = 4 ==>  2 pairs (_) / B2 = 4 ==>  0 pairs (_)
A5,C5: 3.. / A5 = 3 ==>  2 pairs (_) / C5 = 3 ==>  0 pairs (_)
F2,F3: 6.. / F2 = 6 ==>  1 pairs (_) / F3 = 6 ==>  1 pairs (_)
H1,G3: 5.. / H1 = 5 ==>  1 pairs (_) / G3 = 5 ==>  1 pairs (_)
* DURATION: 0:00:58.921066  START: 16:46:45.602546  END: 16:47:44.523612 2020-12-11
* REASONING A5,A6: 8..
* DIS # A5: 8 # H6: 1,4 => CTR => H6: 2,6,8
* DIS # A5: 8 + H6: 2,6,8 # I4: 1,9 => CTR => I4: 2,6,8
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 # E1: 4,5 => CTR => E1: 2,3
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 # E8: 3 => CTR => E8: 4,5
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 # F5: 9 => CTR => F5: 4,5
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 # C9: 2,4 => CTR => C9: 7,9
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 # A2: 3 => CTR => A2: 1,6
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 + A2: 1,6 # D2: 2,8 => CTR => D2: 4
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 + A2: 1,6 + D2: 4 => CTR => A5: 1,3,5
* STA A5: 1,3,5
* CNT   9 HDP CHAINS /  18 HYP OPENED
* DCP COUNT: (8)
* CLUE FOUND

Header Info

32547;2012_03_13;GP;23;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for H6,H7: 6..:

* INC # H7: 6 # D4: 5,9 => UNS
* INC # H7: 6 # D4: 2,8 => UNS
* INC # H7: 6 # B8: 5,9 => UNS
* INC # H7: 6 # B9: 5,9 => UNS
* INC # H7: 6 # C5: 1,9 => UNS
* INC # H7: 6 # C6: 1,9 => UNS
* INC # H7: 6 # A8: 3,5 => UNS
* INC # H7: 6 # B8: 3,5 => UNS
* INC # H7: 6 # A9: 3,5 => UNS
* INC # H7: 6 # B9: 3,5 => UNS
* INC # H7: 6 # D7: 3,5 => UNS
* INC # H7: 6 # G7: 3,5 => UNS
* INC # H7: 6 # A5: 3,5 => UNS
* INC # H7: 6 # A5: 1,8 => UNS
* INC # H7: 6 => UNS
* INC # H6: 6 # C6: 7,9 => UNS
* INC # H6: 6 # C6: 1 => UNS
* INC # H6: 6 # B9: 7,9 => UNS
* INC # H6: 6 # B9: 3,4,5 => UNS
* INC # H6: 6 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for I4,H6: 6..:

* INC # I4: 6 # D4: 5,9 => UNS
* INC # I4: 6 # D4: 2,8 => UNS
* INC # I4: 6 # B8: 5,9 => UNS
* INC # I4: 6 # B9: 5,9 => UNS
* INC # I4: 6 # C5: 1,9 => UNS
* INC # I4: 6 # C6: 1,9 => UNS
* INC # I4: 6 # A8: 3,5 => UNS
* INC # I4: 6 # B8: 3,5 => UNS
* INC # I4: 6 # A9: 3,5 => UNS
* INC # I4: 6 # B9: 3,5 => UNS
* INC # I4: 6 # D7: 3,5 => UNS
* INC # I4: 6 # G7: 3,5 => UNS
* INC # I4: 6 # A5: 3,5 => UNS
* INC # I4: 6 # A5: 1,8 => UNS
* INC # I4: 6 => UNS
* INC # H6: 6 # C6: 7,9 => UNS
* INC # H6: 6 # C6: 1 => UNS
* INC # H6: 6 # B9: 7,9 => UNS
* INC # H6: 6 # B9: 3,4,5 => UNS
* INC # H6: 6 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for B4,A5: 5..:

* INC # A5: 5 # E1: 2,4 => UNS
* INC # A5: 5 # E1: 1,3,5 => UNS
* INC # A5: 5 # C9: 2,4 => UNS
* INC # A5: 5 # C9: 7,9 => UNS
* INC # A5: 5 # C4: 6,9 => UNS
* INC # A5: 5 # B6: 6,9 => UNS
* INC # A5: 5 # C6: 6,9 => UNS
* INC # A5: 5 # I4: 6,9 => UNS
* INC # A5: 5 # I4: 1,2,8 => UNS
* INC # A5: 5 # B8: 6,9 => UNS
* INC # A5: 5 # B8: 3,4,5 => UNS
* INC # A5: 5 # A8: 3,6 => UNS
* INC # A5: 5 # B8: 3,6 => UNS
* INC # A5: 5 # I7: 3,6 => UNS
* INC # A5: 5 # I7: 8,9 => UNS
* INC # A5: 5 # A2: 3,6 => UNS
* INC # A5: 5 # A3: 3,6 => UNS
* INC # A5: 5 => UNS
* INC # B4: 5 => UNS
* CNT  19 HDP CHAINS /  19 HYP OPENED

Full list of HDP chains traversed for A5,A6: 8..:

* DIS # A5: 8 # H6: 1,4 => CTR => H6: 2,6,8
* INC # A5: 8 + H6: 2,6,8 # E5: 1,4 => UNS
* INC # A5: 8 + H6: 2,6,8 # F5: 1,4 => UNS
* DIS # A5: 8 + H6: 2,6,8 # I4: 1,9 => CTR => I4: 2,6,8
* INC # A5: 8 + H6: 2,6,8 + I4: 2,6,8 # F5: 4,5 => UNS
* INC # A5: 8 + H6: 2,6,8 + I4: 2,6,8 # F5: 9 => UNS
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 # E1: 4,5 => CTR => E1: 2,3
* INC # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 # E8: 4,5 => UNS
* INC # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 # E8: 4,5 => UNS
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 # E8: 3 => CTR => E8: 4,5
* INC # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 # F5: 4,5 => UNS
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 # F5: 9 => CTR => F5: 4,5
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 # C9: 2,4 => CTR => C9: 7,9
* INC # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 # A2: 1,6 => UNS
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 # A2: 3 => CTR => A2: 1,6
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 + A2: 1,6 # D2: 2,8 => CTR => D2: 4
* DIS # A5: 8 + H6: 2,6,8 + I4: 2,6,8 + E1: 2,3 + E8: 4,5 + F5: 4,5 + C9: 7,9 + A2: 1,6 + D2: 4 => CTR => A5: 1,3,5
* INC A5: 1,3,5 # A6: 8 => UNS
* STA A5: 1,3,5
* CNT  18 HDP CHAINS /  18 HYP OPENED

Full list of HDP chains traversed for C1,B2: 4..:

* INC # C1: 4 # A2: 3,6 => UNS
* INC # C1: 4 # A3: 3,6 => UNS
* INC # C1: 4 # B3: 3,6 => UNS
* INC # C1: 4 # C3: 3,6 => UNS
* INC # C1: 4 # B8: 3,6 => UNS
* INC # C1: 4 # B8: 4,5,9 => UNS
* INC # C1: 4 # E1: 1,5 => UNS
* INC # C1: 4 # E3: 1,5 => UNS
* INC # C1: 4 # F3: 1,5 => UNS
* INC # C1: 4 # H1: 1,5 => UNS
* INC # C1: 4 # H1: 2 => UNS
* INC # C1: 4 # F5: 1,5 => UNS
* INC # C1: 4 # F5: 4,8,9 => UNS
* INC # C1: 4 => UNS
* INC # B2: 4 => UNS
* CNT  15 HDP CHAINS /  15 HYP OPENED

Full list of HDP chains traversed for A5,C5: 3..:

* INC # A5: 3 # C4: 1,9 => UNS
* INC # A5: 3 # C6: 1,9 => UNS
* INC # A5: 3 # F5: 1,9 => UNS
* INC # A5: 3 # I5: 1,9 => UNS
* INC # A5: 3 # A8: 5,6 => UNS
* INC # A5: 3 # A8: 2 => UNS
* INC # A5: 3 # H7: 5,6 => UNS
* INC # A5: 3 # H7: 4,8 => UNS
* INC # A5: 3 => UNS
* INC # C5: 3 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for F2,F3: 6..:

* INC # F2: 6 # C1: 3,4 => UNS
* INC # F2: 6 # C1: 1,2 => UNS
* INC # F2: 6 # D2: 3,4 => UNS
* INC # F2: 6 # D2: 2,8 => UNS
* INC # F2: 6 # B8: 3,4 => UNS
* INC # F2: 6 # B9: 3,4 => UNS
* INC # F2: 6 => UNS
* INC # F3: 6 # A3: 3,7 => UNS
* INC # F3: 6 # C3: 3,7 => UNS
* INC # F3: 6 # B9: 3,7 => UNS
* INC # F3: 6 # B9: 4,5,9 => UNS
* INC # F3: 6 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for H1,G3: 5..:

* INC # H1: 5 # E1: 1,4 => UNS
* INC # H1: 5 # F2: 1,4 => UNS
* INC # H1: 5 # C1: 1,4 => UNS
* INC # H1: 5 # C1: 2,3 => UNS
* INC # H1: 5 # F5: 1,4 => UNS
* INC # H1: 5 # F5: 5,8,9 => UNS
* INC # H1: 5 => UNS
* INC # G3: 5 # I1: 1,2 => UNS
* INC # G3: 5 # H2: 1,2 => UNS
* INC # G3: 5 # C1: 1,2 => UNS
* INC # G3: 5 # E1: 1,2 => UNS
* INC # G3: 5 # H6: 1,2 => UNS
* INC # G3: 5 # H6: 4,6,8 => UNS
* INC # G3: 5 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED