Extend Callender Bob Doubles

EP4 Dual Mode Constraints

EP4 Dual Mode Derivation

  0 1 2 3 4 5 6 7 8 9
1. Callender Bob Doubles 123 5 145 125 3 5
2. Extract places above the hunt bell 23 5 45 5 - -
3. Extract places below the hunt bell - - 1 12 3 -
Expand places above the hunt bell F E D C B A
4. Reverse and invert places from [2] - - 1 12 1 34
5. Separate into two overlapping strips - - 1 12 1 34
6. Using the start change and overlap 1 34
7. Expand places above mode in [6] to next stage 1 56 1 78
8. Connect the static [5] and expanded [7] strip - - 1 12 1 34 1 56 1 78
9. Reverse and invert places in [8] back again 23 9 45 9 67 9 89 9 - -
Expand places below the hunt bell A B C D E F
10. Below places from [3] - - 1 12 3 -
11. Separate into two overlapping strips - - 1 12 3
12. Using the start change and overlap - 1 12 3 -
13. Expand places above mode in [12] to next stage - 1 12 7 -
14. Connect the static [11] and the expanded [13] strip - - 1 12 3 - 1 12 7 -
Recombine above and below places A B C D E F G H I J
15. Above places from [9] 23 9 45 9 67 9 89 9 - -
16. Below places from [14] - - 1 12 3 - 1 12 7 -
17. Default hunt bell places 1 - - - - - - - - 9
18. [Unnamed] Bob Caters 123 9 145 129 367 9 189 129 7 9

Extension and contraction candidates using extension process EP4-4/4:2:1/1:4:2  

14532 Callender Bob Doubles 5.145.125.3.5,123
187963452 [Unnamed] Bob Caters 9.145.129.367.9.189.129.7.9,123
16A9E025T4738 [Unnamed] Bob Sextuples A.145.12A.367.A.189.12A.70E.A.1TA.12A.E.A,123
Doubles Caters Sextuples
Callender Bob Doubles [Unnamed] Bob Caters [Unnamed] Bob Sextuples