120 Original Doubles
Alexander E. Holroyd

At a bob (which can occur at handstroke or backstroke), thirds is made 
and hunting continues in the opposite direction from before.

  12345
  -----
  21435
- 12453
  14235
  41325
  43152
  34512
- 43521
  45312
  54132
  51423
  15243
- 51234
  52143
  25413
  24531
  42351
- 24315
  23451
  32541
  35214
  53124
- 35142
  31524
  13254
- 31245
  32154
  23514
  25341
  52431
  54213
  45123
  41532
  14352
  13425
- 31452
  13542
  15324
- 51342
  15432
  14523
  41253
  42135
- 24153
  42513
  45231
  54321
  53412
- 35421
  53241
  52314
  25134
  21543
- 12534
  21354
  23145
  32415
  34251
- 43215
  34125
  -----
S 34215

Repeat with second single = 345.