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x1S-32 and x1$-32, Gnu's tendencies towards D and $

Posted By: Nack Ballard
Date: Friday, 28 May 2010, at 9:10 p.m.

In Response To: 51S-32 XG 4 ply RO (David Rockwell)

I have been wondering if GNU's slotting bias would extend to down moves. They are both forward position moves. I will have to check to see if there has been any other similar reversals in results.

I note that the equity for S (Split 24-21, 13-11) is similar to GNU's rollout. Most of the variance is found in D (Down 13-11, 13-10).

I'm not sure how widely you want to explore the issue, but here is data for the six x1S-32 and x1$-32 positions. In each row, Snowie's rollout result is the first bracket, GnuBG's in the second. (The number-of-trial information is omitted for readability but is available upon request.)

21S-32 [S U14 Z23 D45], [S U26 D34]
41S-32 [S Z1 D28], [Z S2 D19]
51S-32 [S D2], [D S2.4]

21$-32 [S U23 D27 Z27 $53], [S U24 Z25 D33 $41]
41$-32 [S Z28 U29 D33 $63 %64], [S Z24 D30 %34 $34]
51$-32 [Z S3 $11 D20], [$ S13 Z20 D28]

Key: S = Split (24/21 13/11), Z = reverse split (24/22 13/10, U = Up (24/22 24/21), D = Down (13/11 13/10), $ = Slot (13/10 6/4), % = alt slot (13/11 8/5). Error sizes / margins are listed in thousandths. For example, "S U14 Z34 D45]" means that S is best, U is -.014, Z is -.034 and D is -.045.

Compared to Snowie, Gnu relatively leans towards D by 11, 9, and 4.4 (thousandths) in the x1S positions.

OTOH, in the x1$ positions, D vs S results are pretty flat: -6, 3 and 2. However, for $ (Slot) or % (alt slot) vs S, slot-happy Gnu leans by 12, 29, 30 and 21.

Nack

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