(A) Cash game, center cube.
Should White double? Should Black take if doubled?
(B) Assume White doubles and Black takes. White to play
(b1) 55
(b2) 33
(b3) 53
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Slotting in the Middle Game
Slotting is an easy idea to understand in the opening. When we slot the 5-point with an opening 2-1, we threaten to make a very strong point while unstacking a big stack. Since our opponent has no board, getting hit is just a minor inconvenience. Although it’s not a hugely correct play (splitting our back men is almost as good), it’s not a hard play to make because the downside seems pretty small.
Slotting in the middle game or the endgame is very different. Now your opponent almost certainly has a reasonable home board, so the cost from being hit is much greater. It’s also unlikely that you still have a stacked position at this point, so unstacking probably isn’t a big goal.
With a hit being more expensive and unstacking not so important, we’ve knocked out two of the three pillars supporting an early slot, and we’re reduced to just one: the value of the point itself. When we slot in the middle game, the point needs to be really important, and the chance of making it cleanly without slotting not so good. There is, however, a new factor affecting a middle game slot: the cube. A slot followed by a miss from your opponent may give you a good double, which in some cases is enough to tip the play in favor of slotting.
The Squat Zone
In the 1970s, the New Yorkers invented a term for the new style of backgammon they were playing, a style based upon aggressive hitting and slotting. They called it pure play. The essence of pure play was the willingness to take risks in the race to build a crushing prime quickly. If the plays worked, you had a winning prime. If your opponent got lucky and hit you a few times, you just had to outplay him in the resulting back game/holding game. (Since the top players played these complex positions very well, this was usually no problem.)
Cash game, center cube.
Black to play 3-2.
While they were naming their own style, the New Yorkers also coined a name for the opposite style – the beginner style of playing safe and stacking up your checkers. They called it playing squat.
Playability
Black – Pips 116 (-7)
Black to Play 3-2
This position comes from the late middle game. White is on the bar without an anchor, falling behind in the race and in some danger of being closed out. Meanwhile Black has a couple of checkers stuck behind a 4-prime. Black needs to escape but he needs to close his board as well, so he’s under constant pressure each turn to get something done.
Hit Twice or Not?
Black – Pips 160 (+15)
(a) Black to Play 6-3
Black – Pips 166 (+21)
(b) Black to Play 6-3
Black – Pips 155 (+10)
(c) Black to Play 6-3
Here we see three closely related positions. In each case, Black will enter with his three, hitting, after which he has to decide on the best play for his six. He can run out of White’s board (with either 22/16 or 21/15) or he can hit in his inner board with 9/3*, breaking his 9-point in the process. What we want to know is how, if at all, Black’s structure affects his choice of plays.
Middle Game Maneuvering
Black – Pips 196 (+53)
Black to Play 3-2
This position is taken from a game which began with a lot of hitting, but not much point-making. Both sides have now secured good anchors; Black also has the 22-point, so he has the making of a strong holding game. Each side has managed to add one outside point along the way. Black has his bar-point, while White has his 9-point. For good measure, White has built a 53-pip lead in the race.
What are the game plans going forward? White’s is pretty simple. He probably won’t be able to build an effective prime, so he needs to capitalize on his racing lead by scrambling his back checkers home, and the sooner the better. He’ll want to start with the checker on his 24-point, and then follow with the checkers on his 20-point. He’s not averse to building the low points in his board; the spares on his 6, 8, and 9-points don’t really have anywhere else to go, and a strong board might help him if he can hit a lucky shot.
