Extend American Horse Bob Caters

Accepted extension path EP3-1CD/1BC, EP4-2/2:2:6

EP4 Dual Mode Constraints

EP4 Dual Mode Derivation

  0 1 2 3 4 5 6 7 8 9 10 11 12 13
1. American Horse Bob Caters 129 34569 1 9 1 9 1 9 1 9
2. Extract places above the hunt bell 29 34569 - 9 - 9 - 9 - -
3. Extract places below the hunt bell - - 1 - 1 - 1 - 1 -
Expand places above the hunt bell J I H G F E D C B A
4. Reverse and invert places from [2] - - 1 - 1 - 1 - 14567 18
5. Separate into two overlapping strips - - 1 - 1 - 1 - 14567 18
6. Using the start change and overlap 1 - 14567 18
7. Expand places above mode in [6] to next stage 1 - 1450E 1T
8. Connect the static [5] and expanded [7] strip - - 1 - 1 - 1 - 14567 18 1 - 1450E 1T
9. Reverse and invert places in [8] back again 2A 3490A - A 6A 7890A - A - A - A - -
Expand places below the hunt bell A B C D E F G H I J
10. Below places from [3] - - 1 - 1 - 1 - 1 -
11. Separate into two overlapping strips - - 1 -
12. Using the start change and overlap - - 1 - 1 - 1 - 1 -
13. Expand places above mode in [12] to next stage - - 1 - 1 - 1 - 1 -
14. Connect the static [11] and the expanded [13] strip - - 1 - - - 1 - 1 - 1 - 1 -
Recombine above and below places A B C D E F G H I J K L M N
15. Above places from [9] 2A 3490A - A 6A 7890A - A - A - A - -
16. Below places from [14] - - 1 - - - 1 - 1 - 1 - 1 -
17. Default hunt bell places 1 - - - - - - - - - - - - A
18. [Unnamed] Bob Sextuples 12A 3490A 1 A 16A 7890A 1 A 1 A 1 A 1 A

Extension and contraction candidates using extension process EP4-4/6:4:5/0:4:1  

142637958 American Horse Bob Caters 34569.1.9.1.9.1.9.1.9,129
19AT07E562384 [Unnamed] Bob Sextuples 3490A.1.A.16A.7890A.1.A.1.A.1.A.1.A,12A
Caters Sextuples
American Horse Bob Caters [Unnamed] Bob Sextuples