Unofficial World Championship Checker Problem Composing Contest #55

[Bill Salot]

Contest 55 is underway.

For the 3rd contest in a row, animated fireworks are on display. All four settings are original, unpublished, and have similar starts, similar styles and all-star solutions to similar wins. The composers are all multiple past winners. If you can solve one, you can solve them all, but the question is, "Which one is best?"

Please cast your vote at the contest link below.