Analysis of xx-top500-188-base.sdk

Contents

Original Sudoku

level: medium

Original Sudoku

position: 3.5.....8....21...............6...5369..7..............2....71.4..3...........2.. initial

Autosolve

position: 3.57...287...213.5....35......6...5369.573.4253.2......23.5.71.4..3.258..561.723. autosolve
Autosolve

Pair Reduction Variants

Pair Reduction Analysis

Pair Reduction Analysis

The following important HDP chains were detected:

* DIS # B3: 1,4 => CTR => B3: 6,8
* DIS # C3: 1,4 => CTR => C3: 2,8,9
* DIS # G1: 9 => CTR => G1: 1,4
* DIS # B4: 1,4 => CTR => B4: 7,8
* PRF # C3: 1,2 => SOL
* DIS # C3: 4,8,9 => CTR => C3: 1,2
* DIS # G3: 6,9 => CTR => G3: 1,4
* PRF # H3: 6,9 => SOL
* DIS # H3: 7 => CTR => H3: 6,9
* DIS # H6: 6,9 => CTR => H6: 7
* PRF # H6: 7 => SOL
* DIS # C4: 1,2 => CTR => C4: 4,7,8
* PRF # C4: 4,7,8 => SOL
* DIS # B4: 1,8 => CTR => B4: 4,7
* DIS # C4: 1,8 => CTR => C4: 2,4,7
* PRF # C6: 1,8 => SOL
* DIS # C3: 1,8 => CTR => C3: 2,4,9
* DIS # G4: 1,8 => CTR => G4: 9
* DIS # G6: 1,8 => CTR => G6: 6,9
* DIS # F7: 8,9 => CTR => F7: 4,6
* PRF # B4: 1,7 => SOL
* DIS # B4: 4,8 => CTR => B4: 1,7
* DIS # C4: 1,7 => CTR => C4: 2,4,8
* PRF # C4: 2,4,8 => SOL
* DIS # E9: 4 => CTR => E9: 8,9
* DIS # E9: 4,9 => CTR => E9: 8
* DIS # I7: 4,9 => CTR => I7: 6
* DIS # D3: 4,9 => CTR => D3: 8
* DIS # F7: 6,9 => CTR => F7: 4,8
* DIS # E1: 4 => CTR => E1: 6,9
* DIS # I7: 4 => CTR => I7: 6,9
* DIS # I7: 4,9 => CTR => I7: 6
* DIS # E9: 4,9 => CTR => E9: 8
* CNT  33 HDP CHAINS /  56 HYP OPENED

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

Pair Reduction

Pair Reduction

The following important HDP chains were detected:

* DIS # B3: 1,4 => CTR => B3: 6,8
* DIS B3: 6,8 # C3: 1,4 => CTR => C3: 2,8,9
* DIS B3: 6,8 + C3: 2,8,9 # G1: 9 => CTR => G1: 1,4
* DIS B3: 6,8 + C3: 2,8,9 + G1: 1,4 # B4: 1,4 => CTR => B4: 7,8
* DIS B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 # G3: 6,9 => CTR => G3: 1,4
* PRF B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 + G3: 1,4 => SOL
* STA B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 + G3: 1,4
* CNT   6 HDP CHAINS /   6 HYP OPENED

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

Details

Positions

3.5.....8....21...............6...5369..7..............2....71.4..3...........2.. initial
3.57...287...213.5....35......6...5369.573.4253.2......23.5.71.4..3.258..561.723. autosolve
345796128789421365162835497274618953691573842538249671823954716417362589956187234 solved

Classification

level: medium

Pairing Analysis

--------------------------------------------------
* PAIRS (16)
B1: 1,4
A3: 1,2
H2: 6,9
I3: 1,7
A4: 1,2
C5: 1,8
G5: 1,8
I6: 1,7
A7: 8,9
B8: 1,7
C8: 1,7
A9: 8,9
D7: 4,9
E8: 6,9
I8: 6,9
I9: 4,9

--------------------------------------------------
* CONSTRAINT PAIRS (AUTO SOLVE)
E4,E6: 1.. / E4 = 1  =>  0 pairs (*) / E6 = 1  =>  0 pairs (X)
B8,C8: 1.. / B8 = 1  =>  0 pairs (*) / C8 = 1  =>  0 pairs (X)
B1,G1: 1.. / B1 = 1  =>  0 pairs (X) / G1 = 1  =>  0 pairs (_)
C5,G5: 1.. / C5 = 1  =>  0 pairs (*) / G5 = 1  =>  0 pairs (X)
A3,A4: 1.. / A3 = 1  =>  0 pairs (*) / A4 = 1  =>  0 pairs (X)
I3,I6: 1.. / I3 = 1  =>  0 pairs (X) / I6 = 1  =>  0 pairs (_)
A3,C3: 2.. / A3 = 2  =>  0 pairs (X) / C3 = 2  =>  0 pairs (_)
A4,C4: 2.. / A4 = 2  =>  0 pairs (*) / C4 = 2  =>  0 pairs (X)
A3,A4: 2.. / A3 = 2  =>  0 pairs (X) / A4 = 2  =>  0 pairs (_)
C3,C4: 2.. / C3 = 2  =>  0 pairs (*) / C4 = 2  =>  0 pairs (X)
G1,G3: 4.. / G1 = 4  =>  0 pairs (X) / G3 = 4  => 19 pairs (_)
I7,I9: 4.. / I7 = 4  =>  0 pairs (X) / I9 = 4  => 17 pairs (_)
E9,I9: 4.. / E9 = 4  =>  0 pairs (X) / I9 = 4  => 17 pairs (_)
B2,B3: 6.. / B2 = 6  =>  0 pairs (X) / B3 = 6  => 18 pairs (_)
E1,F1: 6.. / E1 = 6  =>  0 pairs (X) / F1 = 6  => 15 pairs (_)
G6,H6: 6.. / G6 = 6  => 17 pairs (_) / H6 = 6  =>  0 pairs (X)
F7,E8: 6.. / F7 = 6  =>  0 pairs (X) / E8 = 6  => 15 pairs (_)
I7,I8: 6.. / I7 = 6  => 15 pairs (_) / I8 = 6  =>  0 pairs (X)
B2,H2: 6.. / B2 = 6  =>  0 pairs (X) / H2 = 6  => 18 pairs (_)
F7,I7: 6.. / F7 = 6  =>  0 pairs (X) / I7 = 6  => 15 pairs (_)
E8,I8: 6.. / E8 = 6  => 15 pairs (_) / I8 = 6  =>  0 pairs (X)
E1,E8: 6.. / E1 = 6  =>  0 pairs (X) / E8 = 6  => 15 pairs (_)
F1,F7: 6.. / F1 = 6  => 15 pairs (_) / F7 = 6  =>  0 pairs (X)
G3,G6: 6.. / G3 = 6  =>  0 pairs (X) / G6 = 6  => 17 pairs (_)
H3,I3: 7.. / H3 = 7  =>  0 pairs (X) / I3 = 7  =>  0 pairs (_)
B4,C4: 7.. / B4 = 7  =>  0 pairs (*) / C4 = 7  =>  0 pairs (X)
H6,I6: 7.. / H6 = 7  =>  0 pairs (*) / I6 = 7  =>  0 pairs (X)
B8,C8: 7.. / B8 = 7  =>  0 pairs (X) / C8 = 7  =>  0 pairs (_)
B4,B8: 7.. / B4 = 7  =>  0 pairs (*) / B8 = 7  =>  0 pairs (X)
C4,C8: 7.. / C4 = 7  =>  0 pairs (X) / C8 = 7  =>  0 pairs (_)
H3,H6: 7.. / H3 = 7  =>  0 pairs (X) / H6 = 7  =>  0 pairs (_)
I3,I6: 7.. / I3 = 7  =>  0 pairs (*) / I6 = 7  =>  0 pairs (X)
D2,D3: 8.. / D2 = 8  =>  0 pairs (X) / D3 = 8  => 17 pairs (_)
A7,A9: 8.. / A7 = 8  => 14 pairs (_) / A9 = 8  =>  0 pairs (X)
F7,E9: 8.. / F7 = 8  =>  0 pairs (X) / E9 = 8  => 14 pairs (_)
C5,G5: 8.. / C5 = 8  =>  0 pairs (X) / G5 = 8  =>  0 pairs (_)
A7,F7: 8.. / A7 = 8  => 14 pairs (_) / F7 = 8  =>  0 pairs (X)
A9,E9: 8.. / A9 = 8  =>  0 pairs (X) / E9 = 8  => 14 pairs (_)
C2,C3: 9.. / C2 = 9  => 19 pairs (_) / C3 = 9  =>  0 pairs (X)
A7,A9: 9.. / A7 = 9  =>  0 pairs (X) / A9 = 9  => 14 pairs (_)
E8,I8: 9.. / E8 = 9  =>  0 pairs (X) / I8 = 9  => 15 pairs (_)
* DURATION: 0:01:16.606045  START: 09:06:30.948732  END: 09:07:47.554777 2017-05-04
* CP COUNT: (41)
* SOLUTION FOUND

--------------------------------------------------
* PREPARE PR GRAPH
* PAIR REDUCTION ..
* LEVEL 0 PASS 1 ROUND 1 (AUTO SOLVE) (A3,A4,A7,A9,B1,B8,C5,C8,D7,E8,G5,H2,I3,I6,I8,I9)
* 3.57...287...213.5....35......6...5369.573.4253.2......23.5.71.4..3.258..561.723.
* PAIR B1: 1,4 BLK 1
B3: 1,4,6,8                              # reduction candidate for 1,4
B3: 1,4 => CTR
* 3.57...2876..21395..9835....8.6...5369.573.4253.2......23.5.71.4..3.258..561.723.
B3: 6,8                                  # 17 pairs
C3: 1,4,2,8,9                            # reduction candidate for 1,4
C3: 1,4 => CTR
* 3.57...287.9.2136526.835...1.26...5369857314253421.6.7.2395.71.4.7362589956187234
C3: 2,8,9                                # 16 pairs
* PAIR B1: 1,4 ROW 1
G1: 1,4,9                                # reduction candidate for 1,4
G1: 9 => CTR
* 3157..9287...2136526..354711.26..853698573.4253.2......23.5.71.4..3.258..561.723.
G1: 1,4                                  # 17 pairs
* PAIR B1: 1,4 COL B
B4: 1,4,7,8                              # reduction candidate for 1,4
B4: 1,4 => CTR
* 3.57...287...213.5..2.35...2176...5369857314253421...7.23.5.71.4713.258..561.723.
B4: 7,8                                  # 18 pairs
* PAIR A3: 1,2 BLK 1
C3: 1,2,4,8,9                            # reduction candidate for 1,2
C3: 1,2 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
C3: 4,8,9 => CTR
* 3.57...287...213.52...35...1.26...53698573.4253.2......23.5.71.4..3.258..561.723.
* PAIR H2: 6,9 BLK 3
G3: 6,9,1,4                              # reduction candidate for 6,9
G3: 6,9 => CTR
* 3.57..4287...213.5....35..11.26...53698573.4253.2......23.5.71.4..3.258..561.723.
G3: 1,4                                  # 18 pairs
H3: 6,9,7                                # reduction candidate for 6,9
H3: 6,9 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
H3: 7 => CTR
* 3.57...287...213.5....35.711.26...53698573.4253.2......23.5.71.4..3.258..561.723.
* PAIR H2: 6,9 COL H
H6: 6,9,7                                # reduction candidate for 6,9
H6: 6,9 => CTR
* 3.57...287...213.5....35.711.26...53698573.4253.2......23.5.71.4..3.258..561.723.
H6: 7 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
* PAIR A4: 1,2 BLK 4
C4: 1,2,4,7,8                            # reduction candidate for 1,2
C4: 1,2 => CTR
* 3457..1287..4213.5...8354.7.7.6...5369.573.425342......23.5.71.4173.258..561.723.
C4: 4,7,8 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
* PAIR C5: 1,8 BLK 4
B4: 1,8,4,7                              # reduction candidate for 1,8
B4: 1,8 => CTR
* 3.57...287...213.5..2.35...2176...5369857314253421...7.23.5.71.4713.258..561.723.
B4: 4,7                                  # 20 pairs
C4: 1,8,2,4,7                            # reduction candidate for 1,8
C4: 1,8 => CTR
* 3457..1287.942136516283549727.6...536915738425342..671.2395.71.417362589956187234
C4: 2,4,7                                # 16 pairs
C6: 1,8,4                                # reduction candidate for 1,8
C6: 1,8 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
C6: 4                                    # 18 pairs
* PAIR C5: 1,8 COL C
C3: 1,8,2,4,9                            # reduction candidate for 1,8
C3: 1,8 => CTR
* 3.57...287.9.2136526..35...1.26...5369857314253421.6.7.23.5.71.4.73.258..561.723.
C3: 2,4,9                                # 16 pairs
* PAIR G5: 1,8 BLK 6
G4: 1,8,9                                # reduction candidate for 1,8
G4: 1,8 => CTR
* 3157...287...213.52...35.711.26..853698573.4253.2......23.5.71.4..3.258..561.723.
G4: 9                                    # 19 pairs
G6: 1,8,6,9                              # reduction candidate for 1,8
G6: 1,8 => CTR
* 3.57..42876..21395..9.356711.26..953698573.4253.2...67.23.5.71.4..3.258..561.723.
G6: 6,9                                  # 17 pairs
* PAIR A7: 8,9 ROW 7
F7: 8,9,4,6                              # reduction candidate for 8,9
F7: 8,9 => CTR
* 3.57469287...21365.6..354711.26..853698573.4253.2......2345.7164..362589.561.7234
F7: 4,6                                  # 15 pairs
* PAIR B8: 1,7 COL B
B4: 1,7,4,8                              # reduction candidate for 1,7
B4: 1,7 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
B4: 4,8 => CTR
* 3.57...287...213.5....35.....76...5369.573.4253.2......23.5.71.4713.258..561.723.
* PAIR C8: 1,7 COL C
C4: 1,7,2,4,8                            # reduction candidate for 1,7
C4: 1,7 => CTR
* 3.57...287.9.213651628354972..6...5369.573.425342..671.2395.71.4..362589956187234
C4: 2,4,8 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
* PAIR A9: 8,9 ROW 9
E9: 8,9,4                                # reduction candidate for 8,9
E9: 4 => CTR
* 3.57...287...213.5....35......6...5369.573.4253.2......23.587164..362589.561.723.
E9: 8,9                                  # 17 pairs
* PAIR D7: 4,9 BLK 8
F7: 4,9,6,8                              # reduction candidate for 4,9
F7: 4,9                                  # 13 pairs
E9: 4,9,8                                # reduction candidate for 4,9
E9: 4,9 => CTR
* 3.57469287...21365.6..354711.268..5369.573.4253.2......23.587164..362589856197234
E9: 8                                    # 14 pairs
* PAIR D7: 4,9 ROW 7
I7: 4,9,6                                # reduction candidate for 4,9
I7: 4,9 => CTR
* 3.57649287...21365.6..354711.2649853698573.4253.2.....8234567194..392586956187234
I7: 6                                    # 15 pairs
* PAIR D7: 4,9 COL D
D2: 4,9,8                                # reduction candidate for 4,9
D2: 4,9                                  # 17 pairs
D3: 4,9,8                                # reduction candidate for 4,9
D3: 4,9 => CTR
* 3157...287..8213.52...35...1.26...53698573.4253.2......23.5.71.4..3.258..561.723.
D3: 8                                    # 17 pairs
* PAIR E8: 6,9 BLK 8
F7: 6,9,4,8                              # reduction candidate for 6,9
F7: 6,9 => CTR
* 3157..9287...2136526..354711.26..853698573.4253.2.....82345.71.4..3.258.956187234
F7: 4,8                                  # 16 pairs
* PAIR E8: 6,9 COL E
E1: 6,9,4                                # reduction candidate for 6,9
E1: 4 => CTR
* 3.57469287...21365.6..354711.26..853698573.4253.2......23.5.71.4..3.258..561.723.
E1: 6,9                                  # 19 pairs
* PAIR I8: 6,9 BLK 9
I7: 6,9,4                                # reduction candidate for 6,9
I7: 4 => CTR
* 3.57...287...213.5....35......6...5369.573.4253.2......23.567144..39258..561.723.
I7: 6,9                                  # 17 pairs
* PAIR I9: 4,9 BLK 9
I7: 4,9,6                                # reduction candidate for 4,9
I7: 4,9 => CTR
* 3.57649287...21365.6..354711.2649853698573.4253.2.....8234567194..392586956187234
I7: 6                                    # 15 pairs
* PAIR I9: 4,9 ROW 9
E9: 4,9,8                                # reduction candidate for 4,9
E9: 4,9 => CTR
* 3.57469287...21365.6..354711.268..5369.573.4253.2......23.587164..362589856197234
E9: 8                                    # 14 pairs
* INCONCLUSIVE
* SAVE PR GRAPH xx-top500-188-base-pr-000.dot
* REASONING
* DIS # B3: 1,4 => CTR => B3: 6,8
* DIS # C3: 1,4 => CTR => C3: 2,8,9
* DIS # G1: 9 => CTR => G1: 1,4
* DIS # B4: 1,4 => CTR => B4: 7,8
* PRF # C3: 1,2 => SOL
* DIS # C3: 4,8,9 => CTR => C3: 1,2
* DIS # G3: 6,9 => CTR => G3: 1,4
* PRF # H3: 6,9 => SOL
* DIS # H3: 7 => CTR => H3: 6,9
* DIS # H6: 6,9 => CTR => H6: 7
* PRF # H6: 7 => SOL
* DIS # C4: 1,2 => CTR => C4: 4,7,8
* PRF # C4: 4,7,8 => SOL
* DIS # B4: 1,8 => CTR => B4: 4,7
* DIS # C4: 1,8 => CTR => C4: 2,4,7
* PRF # C6: 1,8 => SOL
* DIS # C3: 1,8 => CTR => C3: 2,4,9
* DIS # G4: 1,8 => CTR => G4: 9
* DIS # G6: 1,8 => CTR => G6: 6,9
* DIS # F7: 8,9 => CTR => F7: 4,6
* PRF # B4: 1,7 => SOL
* DIS # B4: 4,8 => CTR => B4: 1,7
* DIS # C4: 1,7 => CTR => C4: 2,4,8
* PRF # C4: 2,4,8 => SOL
* DIS # E9: 4 => CTR => E9: 8,9
* DIS # E9: 4,9 => CTR => E9: 8
* DIS # I7: 4,9 => CTR => I7: 6
* DIS # D3: 4,9 => CTR => D3: 8
* DIS # F7: 6,9 => CTR => F7: 4,8
* DIS # E1: 4 => CTR => E1: 6,9
* DIS # I7: 4 => CTR => I7: 6,9
* DIS # I7: 4,9 => CTR => I7: 6
* DIS # E9: 4,9 => CTR => E9: 8
* CNT  33 HDP CHAINS /  56 HYP OPENED

--------------------------------------------------
* PREPARE PR GRAPH
* PAIR REDUCTION ..
* LEVEL 0 PASS 1 ROUND 1 (AUTO SOLVE) (A3,A4,A7,A9,B1,B8,C5,C8,D7,E8,G5,H2,I3,I6,I8,I9)
* 3.57...287...213.5....35......6...5369.573.4253.2......23.5.71.4..3.258..561.723.
* PAIR B1: 1,4 BLK 1
B3: 1,4,6,8                              # reduction candidate for 1,4
B3: 1,4 => CTR
* 3.57...2876..21395..9835....8.6...5369.573.4253.2......23.5.71.4..3.258..561.723.
C3: 1,4,2,8,9                            # reduction candidate for 1,4
C3: 1,4 => CTR
* 3.57...287.9.2136526.835...1.26...5369857314253421.6.7.2395.71.4.7362589956187234
* RESTART
* PAIR B1: 1,4 ROW 1
G1: 1,4,9                                # reduction candidate for 1,4
G1: 9 => CTR
* 3157..9287...2136526..354711.26..853698573.4253.2......23.5.71.4..3.258..561.723.
* PAIR B1: 1,4 COL B
B4: 1,4,7,8                              # reduction candidate for 1,4
B4: 1,4 => CTR
* 3.5796.287...213.5..2.35...21764..5369857314253421...7823954716471362589956187234
* PAIR RESTART
* PAIR H2: 6,9 BLK 3
G3: 6,9,1,4                              # reduction candidate for 6,9
G3: 6,9 => CTR
* 3.579642874.821365.684359711..6...5369.573.4253.2.....8239547164..362589956187234
G3: 1,4 => SOLVED
* 345796128789421365162835497274618953691573842538249671823954716417362589956187234
* DURATION: 0:00:09.215258  START: 09:08:45.450085  END: 09:08:54.665343 2017-05-04
* SOLUTION FOUND
* SAVE PR GRAPH xx-top500-188-base-pr-001.dot
* REASONING
* DIS # B3: 1,4 => CTR => B3: 6,8
* DIS B3: 6,8 # C3: 1,4 => CTR => C3: 2,8,9
* DIS B3: 6,8 + C3: 2,8,9 # G1: 9 => CTR => G1: 1,4
* DIS B3: 6,8 + C3: 2,8,9 + G1: 1,4 # B4: 1,4 => CTR => B4: 7,8
* DIS B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 # G3: 6,9 => CTR => G3: 1,4
* PRF B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 + G3: 1,4 => SOL
* STA B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 + G3: 1,4
* CNT   6 HDP CHAINS /   6 HYP OPENED

Header Info

Top 500 Minimum 17 188

solution: 345796128789421365162835497274618953691573842538249671823954716417362589956187234
info: 1836     FNBTWY   S8.f     29756

http://www.sfsudoku.com/su17ExtremeDiff500.txt from http://www.minimumsudoku.com/

Solution

position: 345796128789421365162835497274618953691573842538249671823954716417362589956187234 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:

* DIS # B3: 1,4 => CTR => B3: 6,8
* INC # B3: 6,8 => UNS
* DIS # C3: 1,4 => CTR => C3: 2,8,9
* INC # C3: 2,8,9 => UNS
* INC # G1: 1,4 => UNS
* DIS # G1: 9 => CTR => G1: 1,4
* DIS # B4: 1,4 => CTR => B4: 7,8
* INC # B4: 7,8 => UNS
* PRF # C3: 1,2 => SOL
* DIS # C3: 4,8,9 => CTR => C3: 1,2
* DIS # G3: 6,9 => CTR => G3: 1,4
* INC # G3: 1,4 => UNS
* PRF # H3: 6,9 => SOL
* DIS # H3: 7 => CTR => H3: 6,9
* DIS # H6: 6,9 => CTR => H6: 7
* PRF # H6: 7 => SOL
* DIS # C4: 1,2 => CTR => C4: 4,7,8
* PRF # C4: 4,7,8 => SOL
* DIS # B4: 1,8 => CTR => B4: 4,7
* INC # B4: 4,7 => UNS
* DIS # C4: 1,8 => CTR => C4: 2,4,7
* INC # C4: 2,4,7 => UNS
* PRF # C6: 1,8 => SOL
* INC # C6: 4 => UNS
* DIS # C3: 1,8 => CTR => C3: 2,4,9
* INC # C3: 2,4,9 => UNS
* DIS # G4: 1,8 => CTR => G4: 9
* INC # G4: 9 => UNS
* DIS # G6: 1,8 => CTR => G6: 6,9
* INC # G6: 6,9 => UNS
* DIS # F7: 8,9 => CTR => F7: 4,6
* INC # F7: 4,6 => UNS
* PRF # B4: 1,7 => SOL
* DIS # B4: 4,8 => CTR => B4: 1,7
* DIS # C4: 1,7 => CTR => C4: 2,4,8
* PRF # C4: 2,4,8 => SOL
* INC # E9: 8,9 => UNS
* DIS # E9: 4 => CTR => E9: 8,9
* INC # F7: 4,9 => UNS
* DIS # E9: 4,9 => CTR => E9: 8
* INC # E9: 8 => UNS
* DIS # I7: 4,9 => CTR => I7: 6
* INC # I7: 6 => UNS
* INC # D2: 4,9 => UNS
* DIS # D3: 4,9 => CTR => D3: 8
* INC # D3: 8 => UNS
* DIS # F7: 6,9 => CTR => F7: 4,8
* INC # F7: 4,8 => UNS
* INC # E1: 6,9 => UNS
* DIS # E1: 4 => CTR => E1: 6,9
* INC # I7: 6,9 => UNS
* DIS # I7: 4 => CTR => I7: 6,9
* DIS # I7: 4,9 => CTR => I7: 6
* INC # I7: 6 => UNS
* DIS # E9: 4,9 => CTR => E9: 8
* INC # E9: 8 => UNS
* CNT  56 HDP CHAINS /  56 HYP OPENED

A2. Pair Reduction

Full list of HDP chains traversed:

* DIS # B3: 1,4 => CTR => B3: 6,8
* DIS B3: 6,8 # C3: 1,4 => CTR => C3: 2,8,9
* INC B3: 6,8 + C3: 2,8,9 # G1: 1,4 => UNS
* DIS B3: 6,8 + C3: 2,8,9 # G1: 9 => CTR => G1: 1,4
* DIS B3: 6,8 + C3: 2,8,9 + G1: 1,4 # B4: 1,4 => CTR => B4: 7,8
* DIS B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 # G3: 6,9 => CTR => G3: 1,4
* PRF B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 + G3: 1,4 => SOL
* STA B3: 6,8 + C3: 2,8,9 + G1: 1,4 + B4: 7,8 + G3: 1,4
* CNT   7 HDP CHAINS /   6 HYP OPENED