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Opening 32 XGR+ RO

Posted By: Nack Ballard
Date: Sunday, 6 February 2011, at 3:18 a.m.

In Response To: Opening 32 XGR+ RO (neilkaz)

Thanks for the "+ rollout result, Neil. Here is data for opening 32 at the four primary scores:

    [S D18 Z17] ~75*44
    [S D7 Z13] /92
    [S D8 Z8] <186*46
    [S Z6 D8] ^46
    [S D13 Z14] "+20

    d[S D4 Z6] /20
    d[S D6 Z8 $15 U17 T28] <31**15*5

    s[S Z12 D16 U33] /15*10 5
    s[S Z8 D21] ^46*15

    g[D S27 Z29] /15*10

Key: S = Split (24/21 13/11), Z = reverse split (24/22 13/10), D = Down (13/11 13/10), $ = Slot (13/10 6/4), U = Up (24/22 24/21), T = sTack/Tower (13/8). Margins are in thousandths. Before brackets, d = dmp, s = save, g = go; else assume money. After brackets is a bot symbol (~ Snowie, / GnuBG, < XG 3-ply, ^ XG 4-ply, "+ XG2 roller+) and the number of trials in thousands, rounded down (an asterisk is a repeater, not necessary after the final number).

For example, "s[S Z8 D21] ^46*15" means that at (gammon) save, S is best and Z is -.008 in an XG 4-ply rollout of 46000+ trials, and D is -.021 after 15000+ trials.


I checked how XGR+ responds to 23S and it makes no mistakes.

Do you mean 32S (Split, 24/21 13/11) or 32Z (reverse split, 24/22 13/10)? And what about 32D (Down, 13/11 13/10)?

Nack

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