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61P-43

Posted By: Nack Ballard
Date: Thursday, 15 April 2010, at 8:39 p.m.

In Response To: 61P-43U-43? (Timothy Chow)

61P-43

My impression is that not too many people play 43U in response to 61P. I do because I'm rather fond of 43U in general, and also because there are many rolls that my opponent is likely to play incorrectly.

Good reason. Your U play also tops most of the 61P-43 rollouts:

Money:
Snowie .. [U Z10 S28 D43] 31k 15kS 5kD
GnuBG .. [U Z5.4 S29 D42] 46k 5kSD
XG 3-ply [U Z4] 61k
XG 4-ply [U Z4] 25k

Other Scores:
GnuBG .. d[U Z5.2 S16.5] 5k, s[Z U4.3] 15k, g[Z D13 S22 U30] 5k

Nactation key: U = Up (24/21 24/20), Z = reverse split (24/21 13/9), S = Split (24/20 13/10), D = Down (13/9 13/10).

Error sizes are in thousandths of a point. After the brackets, "k" denotes the number of thousands of trials (rounded down). If there is a letter before the brackets (d, s or g), it means double match point, gammon save or gammon go (DMP, GS or GG), otherwise it is money.

For example, "g[Z D13 S22 U30] 5k" means, "At gammon go, Z is best, D is -.013, S is -.022, and U is -.030, after 5000+ trials."

For another example, "[U Z5.4 S29 D42] 46k 5kSD" means that for money, U is best, Z is -.0054, S is -.029 and D is -.042, after 46000+ trials (but only 5000+ trials for S and D)."

Nack

Messages In This Thread

• 61P-43U-43?
  Timothy Chow -- Thursday, 15 April 2010, at 12:41 a.m.
  • 61P-43U-43?
    neilkaz -- Thursday, 15 April 2010, at 3:13 a.m.
  • 61P-43
    Nack Ballard -- Thursday, 15 April 2010, at 8:39 p.m.