Backgammon Lesson 15: Hit or Not?
Many backgammon problems boil down to a simple question: hit, or don’t hit. In essence, backgammon is a pretty simple game. In general, you want to make points, and in general, you want to hit.
When you can hit a checker on the other side of the board, gaining both time and racing equity, you almost always want to do so. (The only exceptions occur when the alternative is to make a very strong priming or blocking point on your side.) But when the only possible hit is to hit a blot in your inner board, the choice is more difficult. Now you’re risking a significant loss of race equity if you get hit back, so the hit is rarely automatic. For a hit in your inner board to be correct, one of these two reasons usually applies:
(1) You’re hitting on a key blocking or priming point, which you very much need to make.
(2) Your opponent has so many threats that a tempo play is necessary; that is, you’re hitting to prevent your opponent from attacking with his entire roll.
Keep these ideas in mind as you evaluate Black’s choices in the following problem.
Black – Pips 166
Black to Play 5-3
> 6/1*. Hitting loose on the ace-point in the early game is a tantalizing play. It often looks necessary, it’s almost always wrong, but on the occasions when it’s correct, it’s usually correct by a lot. The hit is a tempo play (designed to take away half of the opponent’s roll), but to be correct, the need for a tempo play must be huge. That means that your opponent needs plenty of builders ready to pounce, and you absolutely must put him on the bar. Here the play is wrong because White doesn’t have enough serious threats. True, White has some pointing numbers. But to make his 3-point, he’ll have to break his 7-point or 8-point. He’ll do that if he can, but it’s not a threat you need to guard against because of the broken points and the return shots. Meanwhile, 6/1* just dumps a checker out of play and risks losing plenty of ground in the race.
> 8/3*. The same idea as 6/1*, but even worse. Black strips the important spare off the 8-point, while leaving almost twice as many shots as 6/1*.
> 11/6. Better than the first two choices by a lot, but look at that hideous stack on the 6-point. In the absence of crushing threats, the idea in the early game is to unwind stacks, not make them worse.
> 13/8. Doesn’t do anything great, but doesn’t damage the position either. Here it’s the winner by default, as the other choices are all ruinous.
In our position, White’s threats weren’t all that serious, so a quiet play made sense. If White had a more dangerous collection of builders, 6/1* might have become the best play.
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