Bill Robertie's Blog | The Gammon Press

More on Mobility

Jan 15, 2025 | Backgammon Generally

Cash game, Black owns cube. White on roll.

This problem isn’t difficult, but it contains some interesting points. The right play is 21/13. Remaking the midpoint creates a fluid, well-connected position that’s relatively easy to play compared to alternatives. White has chances to make the 3-point, and some other rolls that make the bar-point. He gets some outfield coverage in case Black’s next roll is 6-3 or 6-4. He blocks Black’s best roll, 6-6, turning it from a game-changer into merely a good shot.
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Structure and Risk-Taking – Part 2 – The Solution

Dec 15, 2024 | Backgammon Problems: Early Game

From the November 2024 blog post, here’s a pair of very similar positions that shows how an (apparently) small change in an early-game position can dramatically change your approach.

Cash game. White to play 5-1

Cash game. White to Play 5-1

These two positions show a routine situation in the early middle game. Both sides have an anchor, and the race is very close. White’s position is slightly preferable since he has better chances of establishing a block against Black’s anchor.

White’s roll of 5-1 is a pretty routine shot and he has two obvious choices: 9/3, starting the 3-point, and 13/8 9/8, playing safe while keeping all checkers is front of Black. Of these two plays, 9/3 is slightly better; 13/8 9/8 creates a big stack which will prove awkward in some of the upcoming variations. In the middle game, we try to avoid creating big stacks unless alternatives are really weak. There’s nothing structurally wrong with 9/3, so it’s a better play here.