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Šibenik Backgammon Quiz 2014.

Posted By: Taper_Mike
Date: Wednesday, 17 September 2014, at 8:59 p.m.

In Response To: Šibenik Backgammon Quiz 2014. (Mislav Kovacic)

Thanks for sharing your excellent quiz. I for one, did not think is was easy! Instead of right/wrong, I think you should score this based on how much equity is lost by a given play. A couple of the plays I thought were second-best did not seem to be egregiously bad, so "partial-credit" might be the way to go.

Thanks again,

Mike

Problem 1

This one came down to a choice between hitting once on the 14pt and hitting twice. I went with the latter. Black will be under pressure to perform immediately, and should he roll badly, the game will shift against him.

d) K (Kill) = 13/7*, 6/2*

Problem 2

I definitely want to hit, and then get out the way of my opponent's 6 from the bar. After the hit, 6 is an awkward roll for Black.

c) 22/18*/16

Problem 3

I'll take the 5pt, and risk 64 and 54.

d) 11/5, 6/5

Problem 4

I like entering on the 21pt, and hitting from the 10pt. That leaves the potent builder on the 9pt. In addition, the blot on the 21pt is a less attractive target than one on the 20pt would be.

d) bar/21, 10/5*

Problem 5

Gotta trust the 5-point board. Hitting would be nice, but this 5 is called for. It must be used to jump out. For the ace, push the checker forward from the 3pt to the 2pt so that you don't duplicate the 2 you need to escape.

d) 22/17, 3/2

Problem 6

After hitting, 2/1 is too bold for my weak nervous system. I would break the 8pt. The 8pt and the 2pt do not go together, and the 9pt does a better job of containment.

c) bar/23*, 8/7

Problem 7

White is ahead in the race. Locking up the anchor could signal the beginning of the end for Black. White's runner are going to have to exit via the 18pt, so now is the time to do it.

a) 22/18, 21/18

Problem 8

9/3, 7/6 will get you off the gammon with any doublet except 11.

e) 9/3, 8/7

Problem 9

If there were any serious chance of going forward right away, I would hit outside. As things stand, however, White has 5 checkers trapped, and nothing up front. Hitting inside seems clear. If White misses the return shots, Black may have the option hit outside next turn. Otherwise, he must fall back on his back game.

c) bar/23*, 6/5*

Problem 10

I am not sure whether to take or not. By Woolsey's Law, that makes this a cube.

b) Double/Take

Problem 11

Black has a solid anchor, and White still has a lot of work to do. Black's made 4pt will help him if White decides to hit loose inside. If Black can weather the storm, he will have all his checker in play. White, on the other hand, may find that his are buried behind Black's anchor.

a) No Double/Take

Problem 12

As a one-roll proposition, I am definitely cubing this. 27 numbers hit, and every one of them is a market-loser. In a cash game, with a dead cube, Black can take or pass as he please. At the score 9-away, 9-away, I am not sure what influence the MET brings. Since I am an optimist, I am taking.

Black probably should cash if missed. The small number of gammons he might win have to be balanced against the rolls that would have him leaving a repeater (66, 65, 62, 61, 55, 52, and 51).

b) Double/Take

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