Friday's Bee Donimoes Problem

Question

A swarm of dice bring nectar back to the hive from a domino garden. I just finished adding a new puzzle race game to Donimoes, my collection of domino puzzles and games, so I thought I would post a few bonus problems here. The game is Bee Donimoes, and the bees are dice flying back to the queen bee. Each die has to stay on the numbers that match it.

See Monday's problem for complete rules and an example solution.

Today's problem is even bigger and more challenging than Wednesday's, it uses the complete set of double-six dominoes. Good luck, and post your solution as an answer. The solution will include four rounds: three dice, four dice, five dice, and six dice.

Answer 1

Phew!

First round (11 10 moves):

1 frees 2: 1L4-D1-R1 Around and around and around they go: 1U4R4, 2R4D3, 1D3L5, 2L5U2, 1U2R3
Cleanup: 2R3D4L1, 1D4R1

Second round (13 11 moves):

Second verse, same as the first: 1L4-D1-R1-U4R4, 2R4D3, 1D3L5, 2L5U2, 1U2R3
but now 3 is mobile: 3U4L3U2R1, 1L3U2L1, 2U2R1D1

Third round (6 moves):

A simple setup: 1L4, 4D4R1, 2D3L1U1
and a simple execution: 2R3, 3U3L2, 2L3

Fourth round (5 moves):

1D2, 3R1U5L2, 5U4, 4R2D1R1, 1U5R1