Analysis of xx-ph-01627739-14_09-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7..6..76..5......4..6.878..6..3...4...8.9.....2.1..4....7.69.9......1.......3. initial

Autosolve

position: 98.7..6..76.85......4..6.878..6..3...4...8.96....2.1.84....7.69.9......1.......3. 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: 0:00:00.000019

List of important HDP chains detected for E4,E5: 7..:

* DIS # E5: 7 # G8: 2,5 => CTR => G8: 4,7,8
* CNT   1 HDP CHAINS /  31 HYP OPENED

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

Very Deep Constraint Pair Analysis

Very Deep Constraint Pair Analysis

Time used: 0:00:42.886299

List of important HDP chains detected for F2,G2: 9..:

* DIS # F2: 9 # E1: 1,3 # E9: 6 => CTR => E9: 4,9
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 # D5: 1,5 => CTR => D5: 3
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 # D9: 4,9 => CTR => D9: 1,5
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 + D9: 1,5 # A5: 2,5 => CTR => A5: 1
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 + D9: 1,5 + A5: 1 => CTR => E1: 4
* DIS # F2: 9 + E1: 4 # D3: 1,3 # A5: 2,5 => CTR => A5: 1,3
* PRF # F2: 9 + E1: 4 # D3: 1,3 + A5: 1,3 # A8: 2,5 => SOL
* STA # F2: 9 + E1: 4 # D3: 1,3 + A5: 1,3 + A8: 2,5
* CNT   7 HDP CHAINS /  56 HYP OPENED

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

Details

This sudoku is very deep. Here is some information that may be helpful on how to proceed.

Positions

98.7..6..76..5......4..6.878..6..3...4...8.9.....2.1..4....7.69.9......1.......3. initial
98.7..6..76.85......4..6.878..6..3...4...8.96....2.1.84....7.69.9......1.......3. autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H1,H2: 1.. / H1 = 1  =>  2 pairs (_) / H2 = 1  =>  1 pairs (_)
I1,I2: 3.. / I1 = 3  =>  2 pairs (_) / I2 = 3  =>  1 pairs (_)
A6,C6: 6.. / A6 = 6  =>  0 pairs (_) / C6 = 6  =>  1 pairs (_)
E8,E9: 6.. / E8 = 6  =>  0 pairs (_) / E9 = 6  =>  0 pairs (_)
E4,E5: 7.. / E4 = 7  =>  1 pairs (_) / E5 = 7  =>  1 pairs (_)
G2,G3: 9.. / G2 = 9  =>  2 pairs (_) / G3 = 9  =>  2 pairs (_)
C4,C6: 9.. / C4 = 9  =>  0 pairs (_) / C6 = 9  =>  0 pairs (_)
F2,G2: 9.. / F2 = 9  =>  2 pairs (_) / G2 = 9  =>  2 pairs (_)
* DURATION: 0:00:05.282849  START: 20:34:10.139129  END: 20:34:15.421978 2020-10-05
* CP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F2,G2: 9.. / F2 = 9 ==>  2 pairs (_) / G2 = 9 ==>  2 pairs (_)
G2,G3: 9.. / G2 = 9 ==>  2 pairs (_) / G3 = 9 ==>  2 pairs (_)
I1,I2: 3.. / I1 = 3 ==>  2 pairs (_) / I2 = 3 ==>  1 pairs (_)
H1,H2: 1.. / H1 = 1 ==>  2 pairs (_) / H2 = 1 ==>  1 pairs (_)
E4,E5: 7.. / E4 = 7 ==>  1 pairs (_) / E5 = 7 ==>  1 pairs (_)
A6,C6: 6.. / A6 = 6 ==>  0 pairs (_) / C6 = 6 ==>  1 pairs (_)
C4,C6: 9.. / C4 = 9 ==>  0 pairs (_) / C6 = 9 ==>  0 pairs (_)
E8,E9: 6.. / E8 = 6 ==>  0 pairs (_) / E9 = 6 ==>  0 pairs (_)
* DURATION: 0:01:18.516166  START: 20:34:15.423200  END: 20:35:33.939366 2020-10-05
* REASONING E4,E5: 7..
* DIS # E5: 7 # G8: 2,5 => CTR => G8: 4,7,8
* CNT   1 HDP CHAINS /  31 HYP OPENED
* DCP COUNT: (8)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
F2,G2: 9.. / F2 = 9 ==>  0 pairs (*) / G2 = 9  =>  0 pairs (X)
* DURATION: 0:00:42.885091  START: 20:35:34.030263  END: 20:36:16.915354 2020-10-05
* REASONING F2,G2: 9..
* DIS # F2: 9 # E1: 1,3 # E9: 6 => CTR => E9: 4,9
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 # D5: 1,5 => CTR => D5: 3
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 # D9: 4,9 => CTR => D9: 1,5
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 + D9: 1,5 # A5: 2,5 => CTR => A5: 1
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 + D9: 1,5 + A5: 1 => CTR => E1: 4
* DIS # F2: 9 + E1: 4 # D3: 1,3 # A5: 2,5 => CTR => A5: 1,3
* PRF # F2: 9 + E1: 4 # D3: 1,3 + A5: 1,3 # A8: 2,5 => SOL
* STA # F2: 9 + E1: 4 # D3: 1,3 + A5: 1,3 + A8: 2,5
* CNT   7 HDP CHAINS /  56 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

1627739;14_09;GP;26;11.50;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F2,G2: 9..:

* INC # F2: 9 # E1: 1,3 => UNS
* INC # F2: 9 # F1: 1,3 => UNS
* INC # F2: 9 # D3: 1,3 => UNS
* INC # F2: 9 # A3: 1,3 => UNS
* INC # F2: 9 # B3: 1,3 => UNS
* INC # F2: 9 # E5: 1,3 => UNS
* INC # F2: 9 # E7: 1,3 => UNS
* INC # F2: 9 # H2: 2,4 => UNS
* INC # F2: 9 # I2: 2,4 => UNS
* INC # F2: 9 # G8: 2,4 => UNS
* INC # F2: 9 # G9: 2,4 => UNS
* INC # F2: 9 => UNS
* INC # G2: 9 # H1: 2,5 => UNS
* INC # G2: 9 # I1: 2,5 => UNS
* INC # G2: 9 # A3: 2,5 => UNS
* INC # G2: 9 # B3: 2,5 => UNS
* INC # G2: 9 # G5: 2,5 => UNS
* INC # G2: 9 # G7: 2,5 => UNS
* INC # G2: 9 # G8: 2,5 => UNS
* INC # G2: 9 # G9: 2,5 => UNS
* INC # G2: 9 # G7: 2,5 => UNS
* INC # G2: 9 # G8: 2,5 => UNS
* INC # G2: 9 # H8: 2,5 => UNS
* INC # G2: 9 # G9: 2,5 => UNS
* INC # G2: 9 # A9: 2,5 => UNS
* INC # G2: 9 # B9: 2,5 => UNS
* INC # G2: 9 # C9: 2,5 => UNS
* INC # G2: 9 # D9: 2,5 => UNS
* INC # G2: 9 # F9: 2,5 => UNS
* INC # G2: 9 # I1: 2,5 => UNS
* INC # G2: 9 # I4: 2,5 => UNS
* INC # G2: 9 => UNS
* CNT  32 HDP CHAINS /  32 HYP OPENED

Full list of HDP chains traversed for G2,G3: 9..:

* INC # G2: 9 # H1: 2,5 => UNS
* INC # G2: 9 # I1: 2,5 => UNS
* INC # G2: 9 # A3: 2,5 => UNS
* INC # G2: 9 # B3: 2,5 => UNS
* INC # G2: 9 # G5: 2,5 => UNS
* INC # G2: 9 # G7: 2,5 => UNS
* INC # G2: 9 # G8: 2,5 => UNS
* INC # G2: 9 # G9: 2,5 => UNS
* INC # G2: 9 # G7: 2,5 => UNS
* INC # G2: 9 # G8: 2,5 => UNS
* INC # G2: 9 # H8: 2,5 => UNS
* INC # G2: 9 # G9: 2,5 => UNS
* INC # G2: 9 # A9: 2,5 => UNS
* INC # G2: 9 # B9: 2,5 => UNS
* INC # G2: 9 # C9: 2,5 => UNS
* INC # G2: 9 # D9: 2,5 => UNS
* INC # G2: 9 # F9: 2,5 => UNS
* INC # G2: 9 # I1: 2,5 => UNS
* INC # G2: 9 # I4: 2,5 => UNS
* INC # G2: 9 => UNS
* INC # G3: 9 # E1: 1,3 => UNS
* INC # G3: 9 # F1: 1,3 => UNS
* INC # G3: 9 # D3: 1,3 => UNS
* INC # G3: 9 # A3: 1,3 => UNS
* INC # G3: 9 # B3: 1,3 => UNS
* INC # G3: 9 # E5: 1,3 => UNS
* INC # G3: 9 # E7: 1,3 => UNS
* INC # G3: 9 # H2: 2,4 => UNS
* INC # G3: 9 # I2: 2,4 => UNS
* INC # G3: 9 # G8: 2,4 => UNS
* INC # G3: 9 # G9: 2,4 => UNS
* INC # G3: 9 => UNS
* CNT  32 HDP CHAINS /  32 HYP OPENED

Full list of HDP chains traversed for I1,I2: 3..:

* INC # I1: 3 # F1: 1,4 => UNS
* INC # I1: 3 # F2: 1,4 => UNS
* INC # I1: 3 # H1: 1,4 => UNS
* INC # I1: 3 # H1: 2,5 => UNS
* INC # I1: 3 # E4: 1,4 => UNS
* INC # I1: 3 # E9: 1,4 => UNS
* INC # I1: 3 # H1: 2,4 => UNS
* INC # I1: 3 # G2: 2,4 => UNS
* INC # I1: 3 # H2: 2,4 => UNS
* INC # I1: 3 # F2: 2,4 => UNS
* INC # I1: 3 # F2: 1,3,9 => UNS
* INC # I1: 3 # I4: 2,4 => UNS
* INC # I1: 3 # I9: 2,4 => UNS
* INC # I1: 3 => UNS
* INC # I2: 3 # C1: 1,2 => UNS
* INC # I2: 3 # A3: 1,2 => UNS
* INC # I2: 3 # B3: 1,2 => UNS
* INC # I2: 3 # F2: 1,2 => UNS
* INC # I2: 3 # H2: 1,2 => UNS
* INC # I2: 3 # C4: 1,2 => UNS
* INC # I2: 3 # C5: 1,2 => UNS
* INC # I2: 3 # C7: 1,2 => UNS
* INC # I2: 3 # C9: 1,2 => UNS
* INC # I2: 3 => UNS
* CNT  24 HDP CHAINS /  24 HYP OPENED

Full list of HDP chains traversed for H1,H2: 1..:

* INC # H1: 1 # F1: 3,4 => UNS
* INC # H1: 1 # F2: 3,4 => UNS
* INC # H1: 1 # I1: 3,4 => UNS
* INC # H1: 1 # I1: 2,5 => UNS
* INC # H1: 1 # E8: 3,4 => UNS
* INC # H1: 1 # E8: 6,8 => UNS
* INC # H1: 1 # I1: 2,4 => UNS
* INC # H1: 1 # G2: 2,4 => UNS
* INC # H1: 1 # I2: 2,4 => UNS
* INC # H1: 1 # F2: 2,4 => UNS
* INC # H1: 1 # F2: 1,3,9 => UNS
* INC # H1: 1 # H4: 2,4 => UNS
* INC # H1: 1 # H8: 2,4 => UNS
* INC # H1: 1 => UNS
* INC # H2: 1 # C1: 2,3 => UNS
* INC # H2: 1 # A3: 2,3 => UNS
* INC # H2: 1 # B3: 2,3 => UNS
* INC # H2: 1 # F2: 2,3 => UNS
* INC # H2: 1 # I2: 2,3 => UNS
* INC # H2: 1 # C5: 2,3 => UNS
* INC # H2: 1 # C7: 2,3 => UNS
* INC # H2: 1 # C8: 2,3 => UNS
* INC # H2: 1 => UNS
* CNT  23 HDP CHAINS /  23 HYP OPENED

Full list of HDP chains traversed for E4,E5: 7..:

* INC # E4: 7 # D5: 1,3 => UNS
* INC # E4: 7 # D5: 5 => UNS
* INC # E4: 7 # A5: 1,3 => UNS
* INC # E4: 7 # C5: 1,3 => UNS
* INC # E4: 7 # E1: 1,3 => UNS
* INC # E4: 7 # E3: 1,3 => UNS
* INC # E4: 7 # E7: 1,3 => UNS
* INC # E4: 7 => UNS
* INC # E5: 7 # H4: 2,5 => UNS
* INC # E5: 7 # I4: 2,5 => UNS
* INC # E5: 7 # A5: 2,5 => UNS
* INC # E5: 7 # C5: 2,5 => UNS
* INC # E5: 7 # G3: 2,5 => UNS
* INC # E5: 7 # G7: 2,5 => UNS
* DIS # E5: 7 # G8: 2,5 => CTR => G8: 4,7,8
* INC # E5: 7 + G8: 4,7,8 # G9: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # H4: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # I4: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # A5: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # C5: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # G3: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # G7: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # G9: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # H4: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # I4: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # A5: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # C5: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # G3: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # G7: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 # G9: 2,5 => UNS
* INC # E5: 7 + G8: 4,7,8 => UNS
* CNT  31 HDP CHAINS /  31 HYP OPENED

Full list of HDP chains traversed for A6,C6: 6..:

* INC # C6: 6 # A5: 3,5 => UNS
* INC # C6: 6 # C5: 3,5 => UNS
* INC # C6: 6 # B6: 3,5 => UNS
* INC # C6: 6 # D6: 3,5 => UNS
* INC # C6: 6 # F6: 3,5 => UNS
* INC # C6: 6 # A3: 3,5 => UNS
* INC # C6: 6 # A8: 3,5 => UNS
* INC # C6: 6 => UNS
* INC # A6: 6 => UNS
* CNT   9 HDP CHAINS /   9 HYP OPENED

Full list of HDP chains traversed for C4,C6: 9..:

* INC # C4: 9 => UNS
* INC # C6: 9 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

Full list of HDP chains traversed for E8,E9: 6..:

* INC # E8: 6 => UNS
* INC # E9: 6 => UNS
* CNT   2 HDP CHAINS /   2 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for F2,G2: 9..:

* INC # F2: 9 # E1: 1,3 => UNS
* INC # F2: 9 # F1: 1,3 => UNS
* INC # F2: 9 # D3: 1,3 => UNS
* INC # F2: 9 # A3: 1,3 => UNS
* INC # F2: 9 # B3: 1,3 => UNS
* INC # F2: 9 # E5: 1,3 => UNS
* INC # F2: 9 # E7: 1,3 => UNS
* INC # F2: 9 # H2: 2,4 => UNS
* INC # F2: 9 # I2: 2,4 => UNS
* INC # F2: 9 # G8: 2,4 => UNS
* INC # F2: 9 # G9: 2,4 => UNS
* INC # F2: 9 # E1: 1,3 # C1: 1,3 => UNS
* INC # F2: 9 # E1: 1,3 # C1: 2 => UNS
* INC # F2: 9 # E1: 1,3 # A3: 1,3 => UNS
* INC # F2: 9 # E1: 1,3 # B3: 1,3 => UNS
* INC # F2: 9 # E1: 1,3 # H1: 1,2 => UNS
* INC # F2: 9 # E1: 1,3 # H1: 5 => UNS
* INC # F2: 9 # E1: 1,3 # C2: 1,2 => UNS
* INC # F2: 9 # E1: 1,3 # C2: 3 => UNS
* INC # F2: 9 # E1: 1,3 # I1: 2,3 => UNS
* INC # F2: 9 # E1: 1,3 # I1: 5 => UNS
* INC # F2: 9 # E1: 1,3 # C2: 2,3 => UNS
* INC # F2: 9 # E1: 1,3 # C2: 1 => UNS
* INC # F2: 9 # E1: 1,3 # C6: 7,9 => UNS
* INC # F2: 9 # E1: 1,3 # C6: 6 => UNS
* INC # F2: 9 # E1: 1,3 # E9: 4,9 => UNS
* DIS # F2: 9 # E1: 1,3 # E9: 6 => CTR => E9: 4,9
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 # D5: 1,5 => CTR => D5: 3
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 # D9: 4,9 => CTR => D9: 1,5
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 + D9: 1,5 # A5: 2,5 => CTR => A5: 1
* DIS # F2: 9 # E1: 1,3 + E9: 4,9 + D5: 3 + D9: 1,5 + A5: 1 => CTR => E1: 4
* INC # F2: 9 + E1: 4 # F1: 1,3 => UNS
* INC # F2: 9 + E1: 4 # D3: 1,3 => UNS
* INC # F2: 9 + E1: 4 # A3: 1,3 => UNS
* INC # F2: 9 + E1: 4 # B3: 1,3 => UNS
* INC # F2: 9 + E1: 4 # E5: 1,3 => UNS
* INC # F2: 9 + E1: 4 # E7: 1,3 => UNS
* INC # F2: 9 + E1: 4 # H2: 2,4 => UNS
* INC # F2: 9 + E1: 4 # I2: 2,4 => UNS
* INC # F2: 9 + E1: 4 # G8: 2,4 => UNS
* INC # F2: 9 + E1: 4 # G9: 2,4 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # C1: 1,3 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # C1: 2 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # A3: 1,3 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # B3: 1,3 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # E5: 1,3 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # E7: 1,3 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # H2: 2,4 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # I2: 2,4 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # G8: 2,4 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 # G9: 2,4 => UNS
* INC # F2: 9 + E1: 4 # F1: 1,3 => UNS
* DIS # F2: 9 + E1: 4 # D3: 1,3 # A5: 2,5 => CTR => A5: 1,3
* PRF # F2: 9 + E1: 4 # D3: 1,3 + A5: 1,3 # A8: 2,5 => SOL
* STA # F2: 9 + E1: 4 # D3: 1,3 + A5: 1,3 + A8: 2,5
* CNT  54 HDP CHAINS /  56 HYP OPENED