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What is wrong with this 61?

Posted By: Timothy Chow
Date: Tuesday, 23 November 2010, at 4:36 p.m.

In Response To: What is wrong with this 61? (tem_sat)

Ever since Nack's analysis of this position, I've kept on my radar screen the possibility of slotting the 6-away point when I have a potential 6-prime emerging.

Here it looks like a tough call. 6/5 is destructive and inflexible, with TMP. Our board is slightly stronger, so we have good prospects for carrying out a successful counterattack even if Black breaks anchor to hit us. These argue for the bold 11/10. We gain quite a lot when Black misses; many of our rolls will play well. Against 11/10 is the fact that the race is equal and we don't really want Black to turn this mutual holding game into a one-side holding game by leaping out with a hitting 6. Of course, as I just pointed out, even if Black leaps out with a hit, Black may not be able to consolidate into a one-way holding game; the other checker still has to leap the prime, and Black will usually have two blots to clean up.

I am not at all certain about this play; probably OTB I would stare at both plays for a while and then chicken out with 6/5, but I would not be surprised if 11/10 turns out to be right.

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