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Retro Pair, and Blue to Play 51

Posted By: Nack Ballard
Date: Thursday, 3 December 2015, at 1:46 a.m.

Mike created a great retro-puzzle (you can see his masterful explanation here) along with a Blue-to-play-32 problem.

Following Mike's lead, I have created a pair of retro-problems. Scroll down for those, and for a couple of Blue-to-play-51 problems.

		White is Player 2 score: 0 pip: 148 Unlimited Game Jacoby Beaver pip: 152 score: 0 Blue is Player 1
XGID=-a--B-D-CA--dC-a-d-e----B-:0:0:1:00:0:0:3:0:10
Problem 1 Reach in Four Moves...(Blue, White, Blue, White)

Problem 1 (above): The position above was reached in FOUR moves (two by each player), that were perfectly played according to XGR++ evaluation. Blue moved first. (Blue, White, Blue, White.) What is the move sequence?

Problem 2 (below): Conditions are identical (to Problem 1). What is the move sequence?

If you can figure out either sequence, you are a genius.

Bonus question (two part): How would you play a roll of 51 for Blue in each of the two positions?

Nack

		White is Player 2 score: 0 pip: 148 Unlimited Game Jacoby Beaver pip: 154 score: 0 Blue is Player 1
XGID=-a--B-D-C--AdC-a-d-e----B-:0:0:1:00:0:0:3:0:10
Problem 2 Reach in Four Moves...(Blue, White, Blue, White)

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