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Deep Snake Cube - Revisited

Posted By: Bob Koca
Date: Tuesday, 30 June 2026, at 2:15 a.m.

In Response To: Deep Snake Cube - Revisited (Frank Berger)

1) "This should prove that the claim “when the evaluations are clueless since it is just adding noise” is rather unlikely."

I don't know what you think I said, nor what exactly you are saying here.

I stand by the idea that when evaluations are clueless that VR does not help convergence happen more quickly.

I never said anything about the evaluations being clueless for the 84.88% win position. I was referring to the XG rollout for the position starting with the 15 checker prime from 19 point to 24 point.

2) "XG is well below that at 0.11% (why is the equity actually -1,000? Shouldn’t it be -0.9978?)."

I think Variance Reduction is the reason. Note that XG does VR on the equity. It reports the actual win percentage but the variance reduced equity can differ from the matching win percentage.

3) "How often? I guessed 3%, but Mochy once told me “more than 3%.” He didn’t say how much more, though. Let’s say 10%, meaning we should win 0.9 * 0.077, or about 6.9%"

It doesn't matter much to the overall point, but my guess is 20%.

4) "There’s still plenty of room for improvement, but the numbers are further proof that BGBlitz understands this better than XG."

Agree completely.

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