alanback: "there's no bluffing in backgammon (it's a "perfect information" game)."

It may be perfect information in the game theory sense but bluffing is most certainly an option because backgammon is rarely a perfect opponent game. Grenv's example below illustrates this. An opponent who accepts a cube offered in order to terminate the game and who then redoubles? That was not a bluff but it shows how a cube can be taken under the wrong circumstances. The converse is also possible. The weaker player knows they're up against someone much stronger and drops the cube as soon as it appears even though it was offered too early (ie, a bluff).

Another form of bluff, perhaps, is the offering of a blot when you know that hitting it will likely cause the opponent more trouble than letting it go. I've been on all four sides of that one, lol.