Analysis of xx-ph-00015708-Kz1_b-base.sdk

Contents

Original Sudoku

level: deep

Original Sudoku

position: 98.7.......6.9.7.....6.5...8......4..3......2..7..91..2...1..8..4......3..8..65.. initial

Autosolve

position: 98.7.......6.9.7.....6.5...8......4..3......2..7..91..2...1..8..4......3..8..65.. 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

Time used: 0:00:00.000006

List of important HDP chains detected for G3,G5: 8..:

* DIS # G3: 8 # G4: 6,9 => CTR => G4: 3
* DIS # G3: 8 + G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # G3: 8 + G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # G3: 8 + G4: 3 + A6: 4 + B6: 2 => CTR => G3: 2,3,4,9
* STA G3: 2,3,4,9
* CNT   4 HDP CHAINS /  15 HYP OPENED

List of important HDP chains detected for G5,I6: 8..:

* DIS # I6: 8 # G4: 6,9 => CTR => G4: 3
* DIS # I6: 8 + G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # I6: 8 + G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # I6: 8 + G4: 3 + A6: 4 + B6: 2 => CTR => I6: 5,6
* STA I6: 5,6
* CNT   4 HDP CHAINS /  23 HYP OPENED

List of important HDP chains detected for G4,H6: 3..:

* DIS # G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # G4: 3 + A6: 4 + B6: 2 # E6: 5,6 => CTR => E6: 3,8
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 # I6: 8 => CTR => I6: 5,6
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 + I6: 5,6 # A2: 1,5 => CTR => A2: 3
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 + I6: 5,6 + A2: 3 => CTR => G4: 6,9
* STA G4: 6,9
* CNT   6 HDP CHAINS /  11 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.......6.9.7.....6.5...8......4..3......2..7..91..2...1..8..4......3..8..65.. initial
98.7.......6.9.7.....6.5...8......4..3......2..7..91..2...1..8..4......3..8..65.. autosolve

Classification

level: deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
G4,H6: 3.. / G4 = 3  =>  1 pairs (_) / H6 = 3  =>  1 pairs (_)
C7,A9: 3.. / C7 = 3  =>  2 pairs (_) / A9 = 3  =>  1 pairs (_)
B7,A8: 6.. / B7 = 6  =>  2 pairs (_) / A8 = 6  =>  2 pairs (_)
A3,B3: 7.. / A3 = 7  =>  2 pairs (_) / B3 = 7  =>  1 pairs (_)
I4,H5: 7.. / I4 = 7  =>  0 pairs (_) / H5 = 7  =>  0 pairs (_)
G5,I6: 8.. / G5 = 8  =>  1 pairs (_) / I6 = 8  =>  1 pairs (_)
G3,G5: 8.. / G3 = 8  =>  1 pairs (_) / G5 = 8  =>  1 pairs (_)
* DURATION: 0:00:04.500611  START: 01:39:56.912233  END: 01:40:01.412844 2020-12-04
* CP COUNT: (7)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
B7,A8: 6.. / B7 = 6 ==>  2 pairs (_) / A8 = 6 ==>  2 pairs (_)
A3,B3: 7.. / A3 = 7 ==>  2 pairs (_) / B3 = 7 ==>  1 pairs (_)
C7,A9: 3.. / C7 = 3 ==>  2 pairs (_) / A9 = 3 ==>  1 pairs (_)
G3,G5: 8.. / G3 = 8 ==>  0 pairs (X) / G5 = 8  =>  1 pairs (_)
G5,I6: 8.. / G5 = 8 ==>  1 pairs (_) / I6 = 8 ==>  0 pairs (X)
G4,H6: 3.. / G4 = 3 ==>  0 pairs (X) / H6 = 3  =>  1 pairs (_)
I4,H5: 7.. / I4 = 7 ==>  0 pairs (_) / H5 = 7 ==>  0 pairs (_)
* DURATION: 0:00:59.014047  START: 01:40:01.413463  END: 01:41:00.427510 2020-12-04
* REASONING G3,G5: 8..
* DIS # G3: 8 # G4: 6,9 => CTR => G4: 3
* DIS # G3: 8 + G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # G3: 8 + G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # G3: 8 + G4: 3 + A6: 4 + B6: 2 => CTR => G3: 2,3,4,9
* STA G3: 2,3,4,9
* CNT   4 HDP CHAINS /  15 HYP OPENED
* REASONING G5,I6: 8..
* DIS # I6: 8 # G4: 6,9 => CTR => G4: 3
* DIS # I6: 8 + G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # I6: 8 + G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # I6: 8 + G4: 3 + A6: 4 + B6: 2 => CTR => I6: 5,6
* STA I6: 5,6
* CNT   4 HDP CHAINS /  23 HYP OPENED
* REASONING G4,H6: 3..
* DIS # G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # G4: 3 + A6: 4 + B6: 2 # E6: 5,6 => CTR => E6: 3,8
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 # I6: 8 => CTR => I6: 5,6
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 + I6: 5,6 # A2: 1,5 => CTR => A2: 3
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 + I6: 5,6 + A2: 3 => CTR => G4: 6,9
* STA G4: 6,9
* CNT   6 HDP CHAINS /  11 HYP OPENED
* DCP COUNT: (7)
* CLUE FOUND

Header Info

15708;Kz1 b;GP;23;11.30;11.30;11.10

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for B7,A8: 6..:

* INC # B7: 6 # B4: 2,5 => UNS
* INC # B7: 6 # C4: 2,5 => UNS
* INC # B7: 6 # D6: 2,5 => UNS
* INC # B7: 6 # E6: 2,5 => UNS
* INC # B7: 6 # B2: 2,5 => UNS
* INC # B7: 6 # B2: 1 => UNS
* INC # B7: 6 # I7: 4,9 => UNS
* INC # B7: 6 # I9: 4,9 => UNS
* INC # B7: 6 # D7: 4,9 => UNS
* INC # B7: 6 # D7: 3,5 => UNS
* INC # B7: 6 # G3: 4,9 => UNS
* INC # B7: 6 # G3: 2,3,8 => UNS
* INC # B7: 6 => UNS
* INC # A8: 6 # A5: 4,5 => UNS
* INC # A8: 6 # C5: 4,5 => UNS
* INC # A8: 6 # D6: 4,5 => UNS
* INC # A8: 6 # E6: 4,5 => UNS
* INC # A8: 6 # A2: 4,5 => UNS
* INC # A8: 6 # A2: 1,3 => UNS
* INC # A8: 6 # H8: 2,9 => UNS
* INC # A8: 6 # H9: 2,9 => UNS
* INC # A8: 6 # D8: 2,9 => UNS
* INC # A8: 6 # D8: 5,8 => UNS
* INC # A8: 6 # G3: 2,9 => UNS
* INC # A8: 6 # G3: 3,4,8 => UNS
* INC # A8: 6 => UNS
* CNT  26 HDP CHAINS /  26 HYP OPENED

Full list of HDP chains traversed for A3,B3: 7..:

* INC # A3: 7 # C1: 1,2 => UNS
* INC # A3: 7 # B2: 1,2 => UNS
* INC # A3: 7 # C3: 1,2 => UNS
* INC # A3: 7 # H3: 1,2 => UNS
* INC # A3: 7 # H3: 3,9 => UNS
* INC # A3: 7 # B4: 1,2 => UNS
* INC # A3: 7 # B4: 5,6,9 => UNS
* INC # A3: 7 # A2: 1,3 => UNS
* INC # A3: 7 # A2: 4,5 => UNS
* INC # A3: 7 => UNS
* INC # B3: 7 # C8: 1,9 => UNS
* INC # B3: 7 # C8: 5 => UNS
* INC # B3: 7 # H9: 1,9 => UNS
* INC # B3: 7 # I9: 1,9 => UNS
* INC # B3: 7 # B4: 1,9 => UNS
* INC # B3: 7 # B4: 2,5,6 => UNS
* INC # B3: 7 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for C7,A9: 3..:

* INC # C7: 3 # A8: 1,7 => UNS
* INC # C7: 3 # B9: 1,7 => UNS
* INC # C7: 3 # H9: 1,7 => UNS
* INC # C7: 3 # I9: 1,7 => UNS
* INC # C7: 3 # A3: 1,7 => UNS
* INC # C7: 3 # A3: 3,4 => UNS
* INC # C7: 3 # E9: 4,7 => UNS
* INC # C7: 3 # E9: 2,3 => UNS
* INC # C7: 3 # I7: 4,7 => UNS
* INC # C7: 3 # I7: 6,9 => UNS
* INC # C7: 3 # F5: 4,7 => UNS
* INC # C7: 3 # F5: 1,8 => UNS
* INC # C7: 3 => UNS
* INC # A9: 3 # B7: 5,9 => UNS
* INC # A9: 3 # C8: 5,9 => UNS
* INC # A9: 3 # D7: 5,9 => UNS
* INC # A9: 3 # D7: 3,4 => UNS
* INC # A9: 3 # C4: 5,9 => UNS
* INC # A9: 3 # C5: 5,9 => UNS
* INC # A9: 3 => UNS
* CNT  20 HDP CHAINS /  20 HYP OPENED

Full list of HDP chains traversed for G3,G5: 8..:

* DIS # G3: 8 # G4: 6,9 => CTR => G4: 3
* INC # G3: 8 + G4: 3 # I4: 6,9 => UNS
* INC # G3: 8 + G4: 3 # H5: 6,9 => UNS
* INC # G3: 8 + G4: 3 # G7: 6,9 => UNS
* INC # G3: 8 + G4: 3 # G8: 6,9 => UNS
* INC # G3: 8 + G4: 3 # I4: 6,9 => UNS
* INC # G3: 8 + G4: 3 # H5: 6,9 => UNS
* INC # G3: 8 + G4: 3 # G7: 6,9 => UNS
* INC # G3: 8 + G4: 3 # G8: 6,9 => UNS
* INC # G3: 8 + G4: 3 # I4: 5,6 => UNS
* INC # G3: 8 + G4: 3 # H5: 5,6 => UNS
* DIS # G3: 8 + G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # G3: 8 + G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # G3: 8 + G4: 3 + A6: 4 + B6: 2 => CTR => G3: 2,3,4,9
* INC G3: 2,3,4,9 # G5: 8 => UNS
* STA G3: 2,3,4,9
* CNT  15 HDP CHAINS /  15 HYP OPENED

Full list of HDP chains traversed for G5,I6: 8..:

* INC # G5: 8 # I4: 5,6 => UNS
* INC # G5: 8 # H5: 5,6 => UNS
* INC # G5: 8 # H6: 5,6 => UNS
* INC # G5: 8 # A6: 5,6 => UNS
* INC # G5: 8 # B6: 5,6 => UNS
* INC # G5: 8 # E6: 5,6 => UNS
* INC # G5: 8 # I1: 5,6 => UNS
* INC # G5: 8 # I1: 1,4 => UNS
* INC # G5: 8 => UNS
* DIS # I6: 8 # G4: 6,9 => CTR => G4: 3
* INC # I6: 8 + G4: 3 # I4: 6,9 => UNS
* INC # I6: 8 + G4: 3 # H5: 6,9 => UNS
* INC # I6: 8 + G4: 3 # G7: 6,9 => UNS
* INC # I6: 8 + G4: 3 # G8: 6,9 => UNS
* INC # I6: 8 + G4: 3 # I4: 6,9 => UNS
* INC # I6: 8 + G4: 3 # H5: 6,9 => UNS
* INC # I6: 8 + G4: 3 # G7: 6,9 => UNS
* INC # I6: 8 + G4: 3 # G8: 6,9 => UNS
* INC # I6: 8 + G4: 3 # I4: 5,6 => UNS
* INC # I6: 8 + G4: 3 # H5: 5,6 => UNS
* DIS # I6: 8 + G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # I6: 8 + G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # I6: 8 + G4: 3 + A6: 4 + B6: 2 => CTR => I6: 5,6
* STA I6: 5,6
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for G4,H6: 3..:

* INC # G4: 3 # I4: 5,6 => UNS
* INC # G4: 3 # H5: 5,6 => UNS
* INC # G4: 3 # I6: 5,6 => UNS
* DIS # G4: 3 # A6: 5,6 => CTR => A6: 4
* DIS # G4: 3 + A6: 4 # B6: 5,6 => CTR => B6: 2
* DIS # G4: 3 + A6: 4 + B6: 2 # E6: 5,6 => CTR => E6: 3,8
* INC # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 # I6: 5,6 => UNS
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 # I6: 8 => CTR => I6: 5,6
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 + I6: 5,6 # A2: 1,5 => CTR => A2: 3
* DIS # G4: 3 + A6: 4 + B6: 2 + E6: 3,8 + I6: 5,6 + A2: 3 => CTR => G4: 6,9
* INC G4: 6,9 # H6: 3 => UNS
* STA G4: 6,9
* CNT  11 HDP CHAINS /  11 HYP OPENED

Full list of HDP chains traversed for I4,H5: 7..:

* INC # I4: 7 => UNS
* INC # H5: 7 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED