Analysis of zz-sudoku-de-601842-base.sdk

Contents

Original Sudoku

level: medium

Original Sudoku

position: 8.1...6.7.4.7.1.8.9.......3..42.51...9.....6...56.73..7.......4.3.4.8.2.4.8...9.6 initial

Autosolve

position: 8.1...6.7.4.7.1.899......13..42.51.8.9.....651856.73.27.....8.4.394.8.214.8...9.6 autosolve
Autosolve

Pair Reduction Variants

Pair Reduction Analysis

Pair Reduction Analysis

The following important HDP chains were detected:

* PRF # A2: 2,5 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* DIS # B3: 2,5 => CTR => B3: 6,7
* DIS # E1: 2,5 => CTR => E1: 3,4
* DIS # G3: 2 => CTR => G3: 4,5
* PRF # G3: 2,5 => SOL
* DIS # G3: 4 => CTR => G3: 2,5
* PRF # A2: 2,5 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* DIS # E2: 2,5 => CTR => E2: 6
* PRF # E2: 6 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* PRF # A2: 2,5 => SOL
* DIS # B3: 2,5 => CTR => B3: 6,7
* DIS # C5: 2,3 => CTR => C5: 7
* PRF # C5: 7 => SOL
* DIS # A2: 2,3 => CTR => A2: 5,6
* PRF # A2: 5,6 => SOL
* DIS # F1: 3,4 => CTR => F1: 2,9
* DIS # B7: 2,6 => CTR => B7: 1,5
* DIS # E7: 2,6 => CTR => E7: 1,3,5
* DIS # C2: 2,6 => CTR => C2: 3
* PRF # C3: 2,6 => SOL
* DIS # C3: 7 => CTR => C3: 2,6
* PRF # E8: 5,6 => SOL
* DIS # E8: 7 => CTR => E8: 5,6
* PRF # A2: 5,6 => SOL
* DIS # A2: 2,3 => CTR => A2: 5,6
* DIS # E7: 2,3 => CTR => E7: 1,5,6
* DIS # F7: 2,3 => CTR => F7: 6,9
* DIS # E9: 2,3 => CTR => E9: 1,5,7
* DIS # F1: 2,3 => CTR => F1: 4,9
* PRF # H9: 3,5 => SOL
* DIS # H9: 7 => CTR => H9: 3,5
* DIS # D7: 3,5 => CTR => D7: 1,9
* DIS # H9: 3 => CTR => H9: 5,7
* PRF # E8: 5,7 => SOL
* DIS # E8: 6 => CTR => E8: 5,7
* CNT  38 HDP CHAINS /  62 HYP OPENED

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

Pair Reduction

Pair Reduction

The following important HDP chains were detected:

* PRF # A2: 2,5 => SOL
* STA A2: 2,5
* CNT   1 HDP CHAINS /   1 HYP OPENED

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

Details

Positions

8.1...6.7.4.7.1.8.9.......3..42.51...9.....6...56.73..7.......4.3.4.8.2.4.8...9.6 initial
8.1...6.7.4.7.1.899......13..42.51.8.9.....651856.73.27.....8.4.394.8.214.8...9.6 autosolve
821539647543761289976824513364295178297183465185647392752916834639458721418372956 solved

Classification

level: medium

Pairing Analysis

--------------------------------------------------
* PAIRS (20)
B1: 2,5
D3: 5,8
H1: 4,5
G2: 2,5
A4: 3,6
B4: 6,7
A5: 2,3
E4: 3,9
D5: 1,8
E5: 1,8
F5: 3,4
E6: 4,9
H4: 7,9
G5: 4,7
H6: 4,9
C7: 2,6
A8: 5,6
F9: 2,3
H7: 3,5
G8: 5,7

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
D5,E5: 1.. / D5 = 1  => 18 pairs (_) / E5 = 1  => 21 pairs (_)
B7,B9: 1.. / B7 = 1  => 22 pairs (_) / B9 = 1  => 21 pairs (_)
G2,G3: 2.. / G2 = 2  => 22 pairs (_) / G3 = 2  =>  0 pairs (X)
A5,C5: 2.. / A5 = 2  => 20 pairs (_) / C5 = 2  =>  0 pairs (X)
A2,A5: 2.. / A2 = 2  =>  0 pairs (X) / A5 = 2  => 20 pairs (_)
A2,C2: 3.. / A2 = 3  =>  0 pairs (X) / C2 = 3  => 21 pairs (_)
E4,F5: 3.. / E4 = 3  =>  0 pairs (X) / F5 = 3  =>  0 pairs (_)
H7,H9: 3.. / H7 = 3  => 20 pairs (_) / H9 = 3  =>  0 pairs (X)
A4,E4: 3.. / A4 = 3  =>  0 pairs (*) / E4 = 3  =>  0 pairs (X)
C2,C5: 3.. / C2 = 3  => 21 pairs (_) / C5 = 3  =>  0 pairs (X)
H1,G3: 4.. / H1 = 4  =>  0 pairs (*) / G3 = 4  =>  0 pairs (X)
F5,E6: 4.. / F5 = 4  =>  0 pairs (X) / E6 = 4  =>  0 pairs (_)
G5,H6: 4.. / G5 = 4  =>  0 pairs (*) / H6 = 4  =>  0 pairs (X)
F5,G5: 4.. / F5 = 4  =>  0 pairs (X) / G5 = 4  =>  0 pairs (_)
E6,H6: 4.. / E6 = 4  =>  0 pairs (*) / H6 = 4  =>  0 pairs (X)
G3,G5: 4.. / G3 = 4  =>  0 pairs (X) / G5 = 4  =>  0 pairs (_)
H1,H6: 4.. / H1 = 4  =>  0 pairs (*) / H6 = 4  =>  0 pairs (X)
A2,A8: 5.. / A2 = 5  =>  0 pairs (*) / A8 = 5  =>  0 pairs (X)
A4,B4: 6.. / A4 = 6  =>  0 pairs (X) / B4 = 6  =>  0 pairs (_)
A8,E8: 6.. / A8 = 6  =>  0 pairs (*) / E8 = 6  =>  0 pairs (X)
F3,F7: 6.. / F3 = 6  =>  0 pairs (X) / F7 = 6  =>  0 pairs (_)
B3,C3: 7.. / B3 = 7  =>  0 pairs (*) / C3 = 7  =>  0 pairs (X)
B4,C5: 7.. / B4 = 7  =>  0 pairs (X) / C5 = 7  =>  0 pairs (_)
H4,G5: 7.. / H4 = 7  =>  0 pairs (*) / G5 = 7  =>  0 pairs (X)
E8,E9: 7.. / E8 = 7  =>  0 pairs (X) / E9 = 7  =>  0 pairs (_)
G8,H9: 7.. / G8 = 7  =>  0 pairs (*) / H9 = 7  =>  0 pairs (X)
B4,H4: 7.. / B4 = 7  =>  0 pairs (X) / H4 = 7  =>  0 pairs (_)
C5,G5: 7.. / C5 = 7  =>  0 pairs (*) / G5 = 7  =>  0 pairs (X)
E8,G8: 7.. / E8 = 7  =>  0 pairs (X) / G8 = 7  =>  0 pairs (_)
E9,H9: 7.. / E9 = 7  =>  0 pairs (*) / H9 = 7  =>  0 pairs (X)
B3,B4: 7.. / B3 = 7  =>  0 pairs (*) / B4 = 7  =>  0 pairs (X)
C3,C5: 7.. / C3 = 7  =>  0 pairs (X) / C5 = 7  =>  0 pairs (_)
G5,G8: 7.. / G5 = 7  =>  0 pairs (X) / G8 = 7  =>  0 pairs (_)
H4,H9: 7.. / H4 = 7  =>  0 pairs (*) / H9 = 7  =>  0 pairs (X)
D3,E3: 8.. / D3 = 8  => 18 pairs (_) / E3 = 8  => 21 pairs (_)
D5,E5: 8.. / D5 = 8  => 21 pairs (_) / E5 = 8  => 18 pairs (_)
D3,D5: 8.. / D3 = 8  => 18 pairs (_) / D5 = 8  => 21 pairs (_)
E3,E5: 8.. / E3 = 8  => 21 pairs (_) / E5 = 8  => 18 pairs (_)
D1,F1: 9.. / D1 = 9  =>  0 pairs (X) / F1 = 9  => 21 pairs (_)
E4,E6: 9.. / E4 = 9  =>  0 pairs (*) / E6 = 9  =>  0 pairs (X)
H4,H6: 9.. / H4 = 9  =>  0 pairs (X) / H6 = 9  =>  0 pairs (_)
D7,F7: 9.. / D7 = 9  => 21 pairs (_) / F7 = 9  =>  0 pairs (X)
E4,H4: 9.. / E4 = 9  =>  0 pairs (*) / H4 = 9  =>  0 pairs (X)
E6,H6: 9.. / E6 = 9  =>  0 pairs (X) / H6 = 9  =>  0 pairs (_)
D1,D7: 9.. / D1 = 9  =>  0 pairs (X) / D7 = 9  => 21 pairs (_)
F1,F7: 9.. / F1 = 9  => 21 pairs (_) / F7 = 9  =>  0 pairs (X)
* DURATION: 0:01:13.943681  START: 07:12:30.893252  END: 07:13:44.836933 2017-05-01
* CP COUNT: (46)
* SOLUTION FOUND

--------------------------------------------------
* PREPARE PR GRAPH
* PAIR REDUCTION ..
* LEVEL 0 PASS 1 ROUND 1 (AUTO SOLVE) (A4,A5,A8,B1,B4,C7,D3,D5,E4,E5,E6,F5,F9,G2,G5,G8,H1,H4,H6,H7)
* 8.1...6.7.4.7.1.899......13..42.51.8.9.....651856.73.27.....8.4.394.8.214.8...9.6
* PAIR B1: 2,5 BLK 1
A2: 2,5,3,6                              # reduction candidate for 2,5
A2: 2,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
A2: 3,6 => CTR
* 8.1...6.7.4.7.1.899....6.13..42.5178297..34651856473927.....8.45394687214.8.729.6
B3: 2,5,6,7                              # reduction candidate for 2,5
B3: 2,5 => CTR
* 8.1...6.7.4.7.1.899.7....13.742.5198.9....765185697342762...8.45394.8.214.8...9.6
B3: 6,7                                  # 21 pairs
* PAIR B1: 2,5 ROW 1
E1: 2,5,3,4                              # reduction candidate for 2,5
E1: 2,5 => CTR
* 8.1...647.4.7.1.899....4.13..4295178.97..34651856473927...36854639458721458172936
E1: 3,4                                  # 21 pairs
* PAIR B1: 2,5 COL B
B7: 2,5,1,6                              # reduction candidate for 2,5
B7: 2,5                                  # 23 pairs
B9: 2,5,1                                # reduction candidate for 2,5
B9: 2,5                                  # 22 pairs
* PAIR D3: 5,8 BLK 2
E3: 5,8,2,4,6                            # reduction candidate for 5,8
E3: 5,8                                  # 24 pairs
E3: 2,4,6                                # 18 pairs
* PAIR H1: 4,5 BLK 3
G3: 4,5,2                                # reduction candidate for 4,5
G3: 2 => CTR
* 8.1...647.4.7.15899.....213..42.51.8.9....4651856473927.....8.45394687214.8.7.9.6
G3: 4,5                                  # 22 pairs
* PAIR H1: 4,5 ROW 1
E1: 4,5,2,3                              # reduction candidate for 4,5
E1: 4,5                                  # 26 pairs
E1: 2,3                                  # 21 pairs
* PAIR G2: 2,5 BLK 3
G3: 2,5,4                                # reduction candidate for 2,5
G3: 2,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
G3: 4 => CTR
* 8.1.4.6575437.12899.....413..42.51.829...47651856973427.....8.4.394785214.8...976
* PAIR G2: 2,5 ROW 2
A2: 2,5,3,6                              # reduction candidate for 2,5
A2: 2,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
A2: 3,6 => CTR
* 8.1...6.7.4.7.1.899....6.13..42.5178297..34651856473927.....8.45394687214.8.729.6
E2: 2,5,6                                # reduction candidate for 2,5
E2: 2,5 => CTR
* 8.1...6.7.4.7.1.899....6.13..42.5178297..34651856473927.....8.45394687214.8.729.6
E2: 6 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
* PAIR A4: 3,6 COL A
A2: 3,6,2,5                              # reduction candidate for 3,6
A2: 3,6 => CTR
* 8.1...6.7.4.7.1.899....6.13..42.5178297..34651856473927.....8.45394687214.8.729.6
A2: 2,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
* PAIR B4: 6,7 COL B
B3: 6,7,2,5                              # reduction candidate for 6,7
B3: 2,5 => CTR
* 8.1...6.7.4.7.1.899.7....13.742.5198.9....765185697342762...8.45394.8.214.8...9.6
B3: 6,7                                  # 21 pairs
* PAIR A5: 2,3 BLK 4
C5: 2,3,7                                # reduction candidate for 2,3
C5: 2,3 => CTR
* 8.1...657543761289967...4136742.5198.9....7651856973427.....8.4.394785214.8...976
C5: 7 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
* PAIR A5: 2,3 COL A
A2: 2,3,5,6                              # reduction candidate for 2,3
A2: 2,3 => CTR
* 8.1...6.7.467.1.899....6.136.42.51.8.9.....651856.73.27.....8.45394687214.8.7.9.6
A2: 5,6 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
* PAIR F5: 3,4 COL F
F1: 3,4,2,9                              # reduction candidate for 3,4
F1: 3,4 => CTR
* 8.19..6.7.4.7.1.899....6.13..42.5178297..34651856473927....98.4539468721418.729.6
F1: 2,9                                  # 21 pairs
* PAIR C7: 2,6 BLK 7
B7: 2,6,1,5                              # reduction candidate for 2,6
B7: 2,6 => CTR
* 8.1...6.7.4.7.1.899....6.13..42.5178.97...4651856473927.....8.4539468721418.729.6
B7: 1,5                                  # 22 pairs
* PAIR C7: 2,6 ROW 7
E7: 2,6,1,3,5                            # reduction candidate for 2,6
E7: 2,6 => CTR
* 8.1...6.7.4.7.1.899....6.13.642.5178.97...4651856473927.....8.4.394.87214.8.7.9.6
E7: 1,3,5                                # 20 pairs
F7: 2,6,3,9                              # reduction candidate for 2,6
F7: 2,6                                  # 24 pairs
* PAIR C7: 2,6 COL C
C2: 2,6,3                                # reduction candidate for 2,6
C2: 2,6 => CTR
* 8.1...6.734.7.1.899......13674235198293..47651856973.27.....8.4.394.8.214.8...9.6
C2: 3                                    # 21 pairs
C3: 2,6,7                                # reduction candidate for 2,6
C3: 2,6 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
C3: 7 => CTR
* 8.1...657543761289967...4136742.5198.9....7651856973427.....8.4.394785214.8...976
* PAIR A8: 5,6 BLK 7
B7: 5,6,1,2                              # reduction candidate for 5,6
B7: 5,6                                  # 24 pairs
B7: 1,2                                  # 22 pairs
* PAIR A8: 5,6 ROW 8
E8: 5,6,7                                # reduction candidate for 5,6
E8: 5,6 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
E8: 7 => CTR
* 8.1...6.7.4.7.1.899......13..42.51.8.9.....651856.73.27.....8.46394785214.8...976
* PAIR A8: 5,6 COL A
A2: 5,6,2,3                              # reduction candidate for 5,6
A2: 5,6 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
A2: 2,3 => CTR
* 8.1...6.7.467.1.899....6.136.42.51.8.9.....651856.73.27.....8.45394687214.8.7.9.6
* PAIR F9: 2,3 BLK 8
E7: 2,3,1,5,6                            # reduction candidate for 2,3
E7: 2,3 => CTR
* 8.13.96.75437612899.6....13364295178297..3465185647392712936854639458721458172936
E7: 1,5,6                                # 20 pairs
F7: 2,3,6,9                              # reduction candidate for 2,3
F7: 2,3 => CTR
* 8.1.4965754.7.1.899....6.13..42.51.8.9...47651856973427..9..8.4.394785214.8...976
F7: 6,9                                  # 21 pairs
E9: 2,3,1,5,7                            # reduction candidate for 2,3
E9: 2,3 => CTR
* 8.1...6575437612899.....413.742.519829.....651856.73.27.....8.4.394785214.8...976
E9: 1,5,7                                # 20 pairs
* PAIR F9: 2,3 COL F
F1: 2,3,4,9                              # reduction candidate for 2,3
F1: 2,3 => CTR
* 8.194365754.7.1.899....6.13..42.51.8.9...47651856973427....98.4.394785214.8...976
F1: 4,9                                  # 21 pairs
* PAIR H7: 3,5 BLK 9
H9: 3,5,7                                # reduction candidate for 3,5
H9: 3,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
H9: 7 => CTR
* 8.1...6575437612899.....413.742.519829.....651856.73.27.....834.394.85214.8...976
* PAIR H7: 3,5 ROW 7
D7: 3,5,1,9                              # reduction candidate for 3,5
D7: 3,5 => CTR
* 8.19..6.7.4.7.1.899....6.13..42.51782971834651856473927...198.4539468721418.729.6
D7: 1,9                                  # 21 pairs
E7: 3,5,1,2,6                            # reduction candidate for 3,5
E7: 3,5                                  # 22 pairs
* PAIR G8: 5,7 BLK 9
H9: 5,7,3                                # reduction candidate for 5,7
H9: 3 => CTR
* 82153.647.437.1.8997...4.13.64295178297..34651856473927....6854639458721458172936
H9: 5,7                                  # 20 pairs
* PAIR G8: 5,7 ROW 8
E8: 5,7,6                                # reduction candidate for 5,7
E8: 5,7 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
E8: 6 => CTR
* 8.1...6.7.4.7.1.899....6.13..42.5178.97...4651856473927.....8.45394687214.8.7.9.6
* INCONCLUSIVE
* SAVE PR GRAPH zz-sudoku-de-601842-base-pr-000.dot
* REASONING
* PRF # A2: 2,5 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* DIS # B3: 2,5 => CTR => B3: 6,7
* DIS # E1: 2,5 => CTR => E1: 3,4
* DIS # G3: 2 => CTR => G3: 4,5
* PRF # G3: 2,5 => SOL
* DIS # G3: 4 => CTR => G3: 2,5
* PRF # A2: 2,5 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* DIS # E2: 2,5 => CTR => E2: 6
* PRF # E2: 6 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* PRF # A2: 2,5 => SOL
* DIS # B3: 2,5 => CTR => B3: 6,7
* DIS # C5: 2,3 => CTR => C5: 7
* PRF # C5: 7 => SOL
* DIS # A2: 2,3 => CTR => A2: 5,6
* PRF # A2: 5,6 => SOL
* DIS # F1: 3,4 => CTR => F1: 2,9
* DIS # B7: 2,6 => CTR => B7: 1,5
* DIS # E7: 2,6 => CTR => E7: 1,3,5
* DIS # C2: 2,6 => CTR => C2: 3
* PRF # C3: 2,6 => SOL
* DIS # C3: 7 => CTR => C3: 2,6
* PRF # E8: 5,6 => SOL
* DIS # E8: 7 => CTR => E8: 5,6
* PRF # A2: 5,6 => SOL
* DIS # A2: 2,3 => CTR => A2: 5,6
* DIS # E7: 2,3 => CTR => E7: 1,5,6
* DIS # F7: 2,3 => CTR => F7: 6,9
* DIS # E9: 2,3 => CTR => E9: 1,5,7
* DIS # F1: 2,3 => CTR => F1: 4,9
* PRF # H9: 3,5 => SOL
* DIS # H9: 7 => CTR => H9: 3,5
* DIS # D7: 3,5 => CTR => D7: 1,9
* DIS # H9: 3 => CTR => H9: 5,7
* PRF # E8: 5,7 => SOL
* DIS # E8: 6 => CTR => E8: 5,7
* CNT  38 HDP CHAINS /  62 HYP OPENED

--------------------------------------------------
* PREPARE PR GRAPH
* PAIR REDUCTION ..
* LEVEL 0 PASS 1 ROUND 1 (AUTO SOLVE) (A4,A5,A8,B1,B4,C7,D3,D5,E4,E5,E6,F5,F9,G2,G5,G8,H1,H4,H6,H7)
* 8.1...6.7.4.7.1.899......13..42.51.8.9.....651856.73.27.....8.4.394.8.214.8...9.6
* PAIR B1: 2,5 BLK 1
A2: 2,5,3,6                              # reduction candidate for 2,5
A2: 2,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
* DURATION: 0:00:02.288791  START: 07:14:41.954331  END: 07:14:44.243122 2017-05-01
* SOLUTION FOUND
* SAVE PR GRAPH zz-sudoku-de-601842-base-pr-001.dot
* REASONING
* PRF # A2: 2,5 => SOL
* STA A2: 2,5
* CNT   1 HDP CHAINS /   1 HYP OPENED

Header Info

http://www.sudokus.de/601842.html
sehr schwierig

level: medium

* PAIR REDUCTION ..
* ROUND 1: 8.1...6.7.4.7.1.899......13..42.51.8.9.....651856.73.27.....8.4.394.8.214.8...9.6
B1: 2,5
A2: 2,3,5,6                              # reduction candidate for 2,5
A2: 2,5 => SOLVED
* 821539647543761289976824513364295178297183465185647392752916834639458721418372956
* SOLVED!

--------------------------------------------------
* AUTO ..
H3 = 1                # set value
G7 = 8                # set value
I8 = 1                # set value
Q1: 3.. = A2,C2: 3.. => E2 != 3
Q7: 1.. = B7,B9: 1.. => B6 != 1
Q5: 9.. = E4,E6: 9.. => E1,E2,E7,E8 != 9
I2: 9..               # hidden single
C8: 9..               # hidden single
I2 = 9                # set value
I4: 8                 # naked single
I4 = 8                # set value
I6: 2                 # naked single
I6 = 2                # set value
I5: 5                 # naked single
A6: 1                 # naked single
B6: 8                 # naked single
C8 = 9                # set value
I5 = 5                # set value
A6 = 1                # set value
B6 = 8                # set value
D5,E5: 1,8.. => D5,E5 != 3,4 # hidden pair
* UNSOLVED!

|:step:| 00
--------------------------------------------------

highlight 4
E1: 2,3,4,5
H1: 4,5
H6: 4,9
E6: 4,9
=> F1,E3 != 4 # x-wing (nested)

highlight 6
B3 = 6 => A4 = 6
B3 = 6 => E2,F7,A8 = 6
=> CTR => B3 != 6 # forced chain

|:step:| 01
--------------------------------------------------

highlight 7
=> full complementary chain

* DISABLE VALUE:: C5 != 7
=> A5,C5 = 2,3 => CTR

* FORCE VALUE:: C5 = 7

|:step:| 01
--------------------------------------------------

Solution

position: 821539647543761289976824513364295178297183465185647392752916834639458721418372956 solved
Solution

See section Pair Reduction for the HDP chains leading to this result.

Appendix: Full HDP Chains

A1. Pair Reduction Analysis

Full list of HDP chains traversed:

* PRF # A2: 2,5 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* DIS # B3: 2,5 => CTR => B3: 6,7
* INC # B3: 6,7 => UNS
* DIS # E1: 2,5 => CTR => E1: 3,4
* INC # E1: 3,4 => UNS
* INC # B7: 2,5 => UNS
* INC # B9: 2,5 => UNS
* INC # E3: 5,8 => UNS
* INC # E3: 2,4,6 => UNS
* INC # G3: 4,5 => UNS
* DIS # G3: 2 => CTR => G3: 4,5
* INC # E1: 4,5 => UNS
* INC # E1: 2,3 => UNS
* PRF # G3: 2,5 => SOL
* DIS # G3: 4 => CTR => G3: 2,5
* PRF # A2: 2,5 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* DIS # E2: 2,5 => CTR => E2: 6
* PRF # E2: 6 => SOL
* DIS # A2: 3,6 => CTR => A2: 2,5
* PRF # A2: 2,5 => SOL
* INC # B3: 6,7 => UNS
* DIS # B3: 2,5 => CTR => B3: 6,7
* DIS # C5: 2,3 => CTR => C5: 7
* PRF # C5: 7 => SOL
* DIS # A2: 2,3 => CTR => A2: 5,6
* PRF # A2: 5,6 => SOL
* DIS # F1: 3,4 => CTR => F1: 2,9
* INC # F1: 2,9 => UNS
* DIS # B7: 2,6 => CTR => B7: 1,5
* INC # B7: 1,5 => UNS
* DIS # E7: 2,6 => CTR => E7: 1,3,5
* INC # E7: 1,3,5 => UNS
* INC # F7: 2,6 => UNS
* DIS # C2: 2,6 => CTR => C2: 3
* INC # C2: 3 => UNS
* PRF # C3: 2,6 => SOL
* DIS # C3: 7 => CTR => C3: 2,6
* INC # B7: 5,6 => UNS
* INC # B7: 1,2 => UNS
* PRF # E8: 5,6 => SOL
* DIS # E8: 7 => CTR => E8: 5,6
* PRF # A2: 5,6 => SOL
* DIS # A2: 2,3 => CTR => A2: 5,6
* DIS # E7: 2,3 => CTR => E7: 1,5,6
* INC # E7: 1,5,6 => UNS
* DIS # F7: 2,3 => CTR => F7: 6,9
* INC # F7: 6,9 => UNS
* DIS # E9: 2,3 => CTR => E9: 1,5,7
* INC # E9: 1,5,7 => UNS
* DIS # F1: 2,3 => CTR => F1: 4,9
* INC # F1: 4,9 => UNS
* PRF # H9: 3,5 => SOL
* DIS # H9: 7 => CTR => H9: 3,5
* DIS # D7: 3,5 => CTR => D7: 1,9
* INC # D7: 1,9 => UNS
* INC # E7: 3,5 => UNS
* INC # H9: 5,7 => UNS
* DIS # H9: 3 => CTR => H9: 5,7
* PRF # E8: 5,7 => SOL
* DIS # E8: 6 => CTR => E8: 5,7
* CNT  62 HDP CHAINS /  62 HYP OPENED

A2. Pair Reduction

Full list of HDP chains traversed:

* PRF # A2: 2,5 => SOL
* STA A2: 2,5
* CNT   1 HDP CHAINS /   1 HYP OPENED