Article View: gnu.chess
Article #5693Lots of 1.Nf3; and Promotion?
From: Rob Ryan
Date: Tue, 20 Oct 1992 02:20
Date: Tue, 20 Oct 1992 02:20
29 lines
2164 bytes
2164 bytes
A couple of GnuChess questions:
1. Why does the opening book of v4.0 have such a preponderance of 1.Nf3
openings. Over 57% of the book is consumed on this opening. In v3.1
(the PC port, anyway), less than 15% was used for 1.Nf3 and I don't
see why a higher % is necessary. Not having v4.0 for the PC yet,
I took the v4.0 book, massaged it so that I could use it with v3.1 and
found that if I have the computer play white, over half of the games
are Nf3 (which seems to be a disproportionate amount). Does GnuChess
v4.0 do something special to make sure that if the computer is White,
that it doesn't play 1.Nf3 too often? Why do these Reti openings
command such a proportion of the opening lines? Have they not gotten
to others yet or does Reti offer something exceptional?
2. Stupid question: How do I promote a pawn? I know that v3.1 doesn't
underpromote (according to the docs), but I haven't figured out how
to promote at all. So, with my black pawn at f2, none of the following
seemed to work: "f1", "f2f1", "f1/Q", "f1=Q", "f1 Q", etc. What do I
have to do. I'm sure that it's obvious, but I'm just missing it.
Thanks.
-- Rob
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Rob Ryan, internet: Robert_Ryan@brown.edu or robr@brownvm.brown.edu
bitnet: ROBR@BROWNVM
Compu$erve: 70324,227
Brown University, Providence, RI
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10d71d,240ec750181c08d4,start X-Google-Attributes: gid10d71d,public X-Google-ArrivalTime: 1992-10-19 14:34:58 PST Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!news.Brown.EDU!news.Brown.EDU!news From: Robert_Ryan@brown.edu (Rob Ryan) Newsgroups: gnu.chess Subject: Lots of 1.Nf3; and Promotion? Date: Mon, 19 Oct 1992 22:20:36 EDT Organization: Brown University - Providence, Rhode Island USA Lines: 29 Message-ID: <1bvqgeINNccs@stanley.cis.Brown.EDU> NNTP-Posting-Host: brownvm.brown.edu News-Software: BNN via BNN_POST v1.0 beta