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Opening 21 [$ 7.9S]46+

Posted By: eXtreme Gammon
Date: Friday, 7 January 2011, at 3:23 a.m.

In Response To: Opening 21 [$ 7.9S]46+ (neilkaz)

I noticed Nack comments http://www.bgonline.org/forums/webbbs_config.pl?noframes;read=63334 about the 4-ply V1 RO

I check the following

• V2 now plays 21$-11N at all plies which is correct by Nack's data 21$-11 [N H21] and different than v1 ( H in 3/4 ply but N on XGR/XGR+)
• V2 still plays 21$-21S at all plies which is incorrect by Nack's data 21$-21 [$ S4] (V1 plays $ only with XGR)

• V2 still plays 21S-21S at all plies which is incorrect by Nack's data 21S-21 [U S4]
• V2 now plays 21S-43X at all plies (but 3-ply) which is correct by Nack's data 21S-43 [X Z2]
• V2 still plays 21S-63R at all plies which is incorrect by Nack's data 21S-63 [S R4]

This means that 21$ equity needs to be reduced by 0.004/18 = 0.00022

and 21S equity needs to be reduced by (0.004+0.004)/18 = 0.00044

I did not check the other responses.

Messages In This Thread

• Opening 21 [$ 7.9S]46+
  neilkaz -- Friday, 7 January 2011, at 2:22 a.m.
  • Opening 21 [$ 7.9S]46+
    eXtreme Gammon -- Friday, 7 January 2011, at 3:23 a.m.
    • Opening 21 [$ 7.9S]46+
      Nack Ballard -- Friday, 7 January 2011, at 5:40 a.m.
      • Correction
        Nack Ballard -- Friday, 7 January 2011, at 7:16 a.m.
    • Incorrect 2nd roll replies
      mtuhtan -- Friday, 7 January 2011, at 1:24 p.m.
      • Incorrect 2nd roll replies
        eXtreme Gammon -- Friday, 7 January 2011, at 2:13 p.m.
  • Opening 21 [$ S7.9] "+46
    Nack Ballard -- Friday, 7 January 2011, at 6:00 a.m.
    • Question on Notation
      David Rockwell -- Friday, 7 January 2011, at 7:01 p.m.
      • Question on Notation
        Nack Ballard -- Friday, 7 January 2011, at 10:09 p.m.