Game 5, move 21 : Linus 5-1

[diane]

Herd rolled 6-5 and danced...Linus to play again.

[Linus]

Thought about rolling the prime forward by slotting the three and keeping the Herd from anchoring, but decided it's more important to complete the six-pt prime for now and cut off any escape.  This also increases the chances of the Herd needing to break the 17 pt and being able to pick off another blot, so I'll move 15/9.