MP Backgammon Prop Part 2

by Jake Jacobs
10 June 2015


Jake Jacobs

For those who missed Part 1 last month, after the last tournament in Las Vegas Phil Simborg and Mochy Mochizuki agreed to play a 30-game proposition where Phil would start each game with the doubling cube on his side, gammons and backgammons activated. The theory was that possession of the cube was worth 3.0 ER, and as that was the estimated difference between the two players, the proposition should be break even.

We resume in Game 7, opened by Mochy with 51.



Mochy slotted his 4pt, and then passed Phil's redouble. After bar/23, 5/4 it is -1.007, a borderline pass. But the correct play of bar/23, 13/12* would have given Mochy a solid take.



Mochy chose 8/4(2), 7/3(2), but XG much prefers 8/4, 7/3, 5/1(2)*. After 44 you have lost one of your game plans – the prime – and have to fall back on attacking. Might as well begin now before he runs or builds.



What a difference a checker makes! Mochy played three correctly: 8/3(2), 7/2*. But which is the correct fourth? Despite having four men back, Black needs only leap a three-prime. Bringing down a builder 13/8 is much, much better than 22/17.
 
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