Analysis of xx-ph-00034415-12_05-base.sdk

Contents

Original Sudoku

level: very deep

Original Sudoku

position: 98.7.....6..5.......4.6.8..3...8.4...4.....2......7..1.9..3.6....3....5......1..2 initial

Autosolve

position: 98.7.....6..5.8.....4.6.8..3...8.4...4.....2......7..1.9..3.6....3....5......1..2 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

Deep Constraint Pair Analysis

Time used: 0:00:00.000006

List of important HDP chains detected for F7,E9: 5..:

* DIS # E9: 5 # A7: 2,4 => CTR => A7: 1,5,7,8
* CNT   1 HDP CHAINS /  42 HYP OPENED

List of important HDP chains detected for E8,E9: 7..:

* DIS # E9: 7 # G2: 3,9 => CTR => G2: 1,2,7
* CNT   1 HDP CHAINS /  25 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: 0:00:38.990690

List of important HDP chains detected for F7,E9: 5..:

* DIS # E9: 5 # A7: 2,4 => CTR => A7: 1,5,7,8
* DIS # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # D6: 3,6 => CTR => D6: 2,4
* DIS # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 # F5: 5 => CTR => F5: 3,6
* PRF # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # C9: 8 => SOL
* STA # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 + C9: 8
* CNT   4 HDP CHAINS /  58 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..5.......4.6.8..3...8.4...4.....2......7..1.9..3.6....3....5......1..2 initial
98.7.....6..5.8.....4.6.8..3...8.4...4.....2......7..1.9..3.6....3....5......1..2 autosolve

Classification

level: very deep

Pairing Analysis

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
H7,G8: 1.. / H7 = 1  =>  3 pairs (_) / G8 = 1  =>  0 pairs (_)
G1,G2: 2.. / G1 = 2  =>  3 pairs (_) / G2 = 2  =>  1 pairs (_)
B2,B3: 3.. / B2 = 3  =>  0 pairs (_) / B3 = 3  =>  2 pairs (_)
G9,H9: 3.. / G9 = 3  =>  3 pairs (_) / H9 = 3  =>  1 pairs (_)
D6,E6: 4.. / D6 = 4  =>  1 pairs (_) / E6 = 4  =>  2 pairs (_)
F7,E9: 5.. / F7 = 5  =>  0 pairs (_) / E9 = 5  =>  4 pairs (_)
H1,I1: 6.. / H1 = 6  =>  1 pairs (_) / I1 = 6  =>  0 pairs (_)
E8,E9: 7.. / E8 = 7  =>  1 pairs (_) / E9 = 7  =>  2 pairs (_)
I5,H6: 8.. / I5 = 8  =>  1 pairs (_) / H6 = 8  =>  1 pairs (_)
* DURATION: 0:00:05.222638  START: 12:40:23.976164  END: 12:40:29.198802 2020-12-14
* CP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* DEEP CONSTRAINT PAIRS (PAIR REDUCTION)
F7,E9: 5.. / F7 = 5 ==>  0 pairs (_) / E9 = 5 ==>  4 pairs (_)
G9,H9: 3.. / G9 = 3 ==>  3 pairs (_) / H9 = 3 ==>  1 pairs (_)
G1,G2: 2.. / G1 = 2 ==>  3 pairs (_) / G2 = 2 ==>  1 pairs (_)
H7,G8: 1.. / H7 = 1 ==>  3 pairs (_) / G8 = 1 ==>  0 pairs (_)
E8,E9: 7.. / E8 = 7 ==>  1 pairs (_) / E9 = 7 ==>  2 pairs (_)
D6,E6: 4.. / D6 = 4 ==>  1 pairs (_) / E6 = 4 ==>  2 pairs (_)
B2,B3: 3.. / B2 = 3 ==>  0 pairs (_) / B3 = 3 ==>  2 pairs (_)
I5,H6: 8.. / I5 = 8 ==>  1 pairs (_) / H6 = 8 ==>  1 pairs (_)
H1,I1: 6.. / H1 = 6 ==>  1 pairs (_) / I1 = 6 ==>  0 pairs (_)
* DURATION: 0:01:08.581062  START: 12:40:29.199383  END: 12:41:37.780445 2020-12-14
* REASONING F7,E9: 5..
* DIS # E9: 5 # A7: 2,4 => CTR => A7: 1,5,7,8
* CNT   1 HDP CHAINS /  42 HYP OPENED
* REASONING E8,E9: 7..
* DIS # E9: 7 # G2: 3,9 => CTR => G2: 1,2,7
* CNT   1 HDP CHAINS /  25 HYP OPENED
* DCP COUNT: (9)
* INCONCLUSIVE

--------------------------------------------------
* VERY DEEP CONSTRAINT PAIRS (PAIR REDUCTION, RECURSIVE)
F7,E9: 5.. / F7 = 5  =>  0 pairs (X) / E9 = 5 ==>  0 pairs (*)
* DURATION: 0:00:38.987981  START: 12:41:37.886860  END: 12:42:16.874841 2020-12-14
* REASONING F7,E9: 5..
* DIS # E9: 5 # A7: 2,4 => CTR => A7: 1,5,7,8
* DIS # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # D6: 3,6 => CTR => D6: 2,4
* DIS # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 # F5: 5 => CTR => F5: 3,6
* PRF # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # C9: 8 => SOL
* STA # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 + C9: 8
* CNT   4 HDP CHAINS /  58 HYP OPENED
* VDCP COUNT: (1)
* SOLUTION FOUND

Header Info

34415;12_05;GP;22;11.30;1.20;1.20

Appendix: Full HDP Chains

A1. Deep Constraint Pair Analysis

Full list of HDP chains traversed for F7,E9: 5..:

* INC # E9: 5 # D4: 1,9 => UNS
* INC # E9: 5 # D5: 1,9 => UNS
* INC # E9: 5 # C5: 1,9 => UNS
* INC # E9: 5 # C5: 5,6,7,8 => UNS
* INC # E9: 5 # E2: 1,9 => UNS
* INC # E9: 5 # E2: 2,4 => UNS
* INC # E9: 5 # C9: 6,7 => UNS
* INC # E9: 5 # C9: 8 => UNS
* INC # E9: 5 # B4: 6,7 => UNS
* INC # E9: 5 # B4: 1,2,5 => UNS
* INC # E9: 5 # D7: 2,4 => UNS
* INC # E9: 5 # D8: 2,4 => UNS
* INC # E9: 5 # F8: 2,4 => UNS
* DIS # E9: 5 # A7: 2,4 => CTR => A7: 1,5,7,8
* INC # E9: 5 + A7: 1,5,7,8 # F1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D7: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 2,3,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D5: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C5: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C5: 5,6,7,8 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # E2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # E2: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C9: 6,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C9: 8 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # B4: 6,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # B4: 1,2,5 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D7: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 2,3,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 => UNS
* INC # F7: 5 => UNS
* CNT  42 HDP CHAINS /  42 HYP OPENED

Full list of HDP chains traversed for G9,H9: 3..:

* INC # G9: 3 # I4: 5,9 => UNS
* INC # G9: 3 # G5: 5,9 => UNS
* INC # G9: 3 # C6: 5,9 => UNS
* INC # G9: 3 # E6: 5,9 => UNS
* INC # G9: 3 => UNS
* INC # H9: 3 # G8: 7,9 => UNS
* INC # H9: 3 # I8: 7,9 => UNS
* INC # H9: 3 # E9: 7,9 => UNS
* INC # H9: 3 # E9: 4,5 => UNS
* INC # H9: 3 # G2: 7,9 => UNS
* INC # H9: 3 # G5: 7,9 => UNS
* INC # H9: 3 => UNS
* CNT  12 HDP CHAINS /  12 HYP OPENED

Full list of HDP chains traversed for G1,G2: 2..:

* INC # G1: 2 # A3: 1,5 => UNS
* INC # G1: 2 # B3: 1,5 => UNS
* INC # G1: 2 # C4: 1,5 => UNS
* INC # G1: 2 # C5: 1,5 => UNS
* INC # G1: 2 # C7: 1,5 => UNS
* INC # G1: 2 # E2: 1,4 => UNS
* INC # G1: 2 # E2: 2,9 => UNS
* INC # G1: 2 # H1: 1,4 => UNS
* INC # G1: 2 # H1: 3,6 => UNS
* INC # G1: 2 # H1: 3,4 => UNS
* INC # G1: 2 # I1: 3,4 => UNS
* INC # G1: 2 => UNS
* INC # G2: 2 # B2: 1,7 => UNS
* INC # G2: 2 # A3: 1,7 => UNS
* INC # G2: 2 # B3: 1,7 => UNS
* INC # G2: 2 # H2: 1,7 => UNS
* INC # G2: 2 # H2: 3,4,9 => UNS
* INC # G2: 2 # C4: 1,7 => UNS
* INC # G2: 2 # C5: 1,7 => UNS
* INC # G2: 2 # C7: 1,7 => UNS
* INC # G2: 2 => UNS
* CNT  21 HDP CHAINS /  21 HYP OPENED

Full list of HDP chains traversed for H7,G8: 1..:

* INC # H7: 1 # C1: 1,2 => UNS
* INC # H7: 1 # E1: 1,2 => UNS
* INC # H7: 1 # B2: 1,2 => UNS
* INC # H7: 1 # C2: 1,2 => UNS
* INC # H7: 1 # E2: 1,2 => UNS
* INC # H7: 1 # I8: 7,9 => UNS
* INC # H7: 1 # G9: 7,9 => UNS
* INC # H7: 1 # H9: 7,9 => UNS
* INC # H7: 1 # E8: 7,9 => UNS
* INC # H7: 1 # E8: 2,4 => UNS
* INC # H7: 1 # G5: 7,9 => UNS
* INC # H7: 1 # G5: 3,5 => UNS
* INC # H7: 1 => UNS
* INC # G8: 1 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for E8,E9: 7..:

* INC # E9: 7 # C9: 5,6 => UNS
* INC # E9: 7 # C9: 8 => UNS
* INC # E9: 7 # B4: 5,6 => UNS
* INC # E9: 7 # B6: 5,6 => UNS
* INC # E9: 7 # H9: 3,9 => UNS
* INC # E9: 7 # H9: 4,8 => UNS
* DIS # E9: 7 # G2: 3,9 => CTR => G2: 1,2,7
* INC # E9: 7 + G2: 1,2,7 # G5: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # G6: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # H9: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # H9: 4,8 => UNS
* INC # E9: 7 + G2: 1,2,7 # G5: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # G6: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # C9: 5,6 => UNS
* INC # E9: 7 + G2: 1,2,7 # C9: 8 => UNS
* INC # E9: 7 + G2: 1,2,7 # B4: 5,6 => UNS
* INC # E9: 7 + G2: 1,2,7 # B6: 5,6 => UNS
* INC # E9: 7 + G2: 1,2,7 # H9: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # H9: 4,8 => UNS
* INC # E9: 7 + G2: 1,2,7 # G5: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 # G6: 3,9 => UNS
* INC # E9: 7 + G2: 1,2,7 => UNS
* INC # E8: 7 # G2: 1,9 => UNS
* INC # E8: 7 # G2: 2,3,7 => UNS
* INC # E8: 7 => UNS
* CNT  25 HDP CHAINS /  25 HYP OPENED

Full list of HDP chains traversed for D6,E6: 4..:

* INC # E6: 4 # E2: 1,2 => UNS
* INC # E6: 4 # D3: 1,2 => UNS
* INC # E6: 4 # C1: 1,2 => UNS
* INC # E6: 4 # G1: 1,2 => UNS
* INC # E6: 4 # A7: 2,5 => UNS
* INC # E6: 4 # C7: 2,5 => UNS
* INC # E6: 4 # F4: 2,5 => UNS
* INC # E6: 4 # F4: 6,9 => UNS
* INC # E6: 4 => UNS
* INC # D6: 4 # D8: 2,8 => UNS
* INC # D6: 4 # D8: 6,9 => UNS
* INC # D6: 4 # A7: 2,8 => UNS
* INC # D6: 4 # C7: 2,8 => UNS
* INC # D6: 4 => UNS
* CNT  14 HDP CHAINS /  14 HYP OPENED

Full list of HDP chains traversed for B2,B3: 3..:

* INC # B3: 3 # E2: 2,9 => UNS
* INC # B3: 3 # D3: 2,9 => UNS
* INC # B3: 3 # F4: 2,9 => UNS
* INC # B3: 3 # F8: 2,9 => UNS
* INC # B3: 3 # D8: 2,8 => UNS
* INC # B3: 3 # D8: 6,9 => UNS
* INC # B3: 3 # A7: 2,8 => UNS
* INC # B3: 3 # C7: 2,8 => UNS
* INC # B3: 3 => UNS
* INC # B2: 3 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

Full list of HDP chains traversed for I5,H6: 8..:

* INC # I5: 8 # H7: 4,7 => UNS
* INC # I5: 8 # I8: 4,7 => UNS
* INC # I5: 8 # H9: 4,7 => UNS
* INC # I5: 8 # A7: 4,7 => UNS
* INC # I5: 8 # A7: 1,2,5,8 => UNS
* INC # I5: 8 # I2: 4,7 => UNS
* INC # I5: 8 # I2: 3,9 => UNS
* INC # I5: 8 => UNS
* INC # H6: 8 # B4: 2,5 => UNS
* INC # H6: 8 # C4: 2,5 => UNS
* INC # H6: 8 # B6: 2,5 => UNS
* INC # H6: 8 # C6: 2,5 => UNS
* INC # H6: 8 # E6: 2,5 => UNS
* INC # H6: 8 # E6: 4,9 => UNS
* INC # H6: 8 # A3: 2,5 => UNS
* INC # H6: 8 # A7: 2,5 => UNS
* INC # H6: 8 => UNS
* CNT  17 HDP CHAINS /  17 HYP OPENED

Full list of HDP chains traversed for H1,I1: 6..:

* INC # H1: 6 # I4: 7,9 => UNS
* INC # H1: 6 # G5: 7,9 => UNS
* INC # H1: 6 # I5: 7,9 => UNS
* INC # H1: 6 # C4: 7,9 => UNS
* INC # H1: 6 # C4: 1,2,5,6 => UNS
* INC # H1: 6 # H2: 7,9 => UNS
* INC # H1: 6 # H3: 7,9 => UNS
* INC # H1: 6 # H9: 7,9 => UNS
* INC # H1: 6 => UNS
* INC # I1: 6 => UNS
* CNT  10 HDP CHAINS /  10 HYP OPENED

A2. Very Deep Constraint Pair Analysis

Full list of HDP chains traversed for F7,E9: 5..:

* INC # E9: 5 # D4: 1,9 => UNS
* INC # E9: 5 # D5: 1,9 => UNS
* INC # E9: 5 # C5: 1,9 => UNS
* INC # E9: 5 # C5: 5,6,7,8 => UNS
* INC # E9: 5 # E2: 1,9 => UNS
* INC # E9: 5 # E2: 2,4 => UNS
* INC # E9: 5 # C9: 6,7 => UNS
* INC # E9: 5 # C9: 8 => UNS
* INC # E9: 5 # B4: 6,7 => UNS
* INC # E9: 5 # B4: 1,2,5 => UNS
* INC # E9: 5 # D7: 2,4 => UNS
* INC # E9: 5 # D8: 2,4 => UNS
* INC # E9: 5 # F8: 2,4 => UNS
* DIS # E9: 5 # A7: 2,4 => CTR => A7: 1,5,7,8
* INC # E9: 5 + A7: 1,5,7,8 # F1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D7: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 2,3,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D5: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C5: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C5: 5,6,7,8 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # E2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # E2: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C9: 6,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # C9: 8 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # B4: 6,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # B4: 1,2,5 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D7: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F8: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # F1: 3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # G2: 2,3,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # C4: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # C4: 2,5,6,7 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # D3: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # D3: 2,3 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # F5: 3,6 => UNS
* DIS # E9: 5 + A7: 1,5,7,8 # D4: 1,9 # D6: 3,6 => CTR => D6: 2,4
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 # F5: 3,6 => UNS
* DIS # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 # F5: 5 => CTR => F5: 3,6
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # C5: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # C5: 5,7,8 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # E2: 1,9 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # E2: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # E1: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # E2: 2,4 => UNS
* INC # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # C9: 6,7 => UNS
* PRF # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 # C9: 8 => SOL
* STA # E9: 5 + A7: 1,5,7,8 # D4: 1,9 + D6: 2,4 + F5: 3,6 + C9: 8
* CNT  56 HDP CHAINS /  58 HYP OPENED