[Computer-go] Komi and the value of the first move

David Fotland fotland at smart-games.com
Mon Apr 5 09:14:32 PDT 2010

I think it is generally accepted that the first move is worth twice the
value of Komi, so about 15 points.  I don't know anyone who thinks it's
worth 20 to 30 points.  One could argue that the first few moves are miai,
and of equal value, so they could be worth more than twice komi.  Twice komi
would then be the value of the first non-miai move.


> -----Original Message-----
> From: computer-go-bounces at dvandva.org [mailto:computer-go-
> bounces at dvandva.org] On Behalf Of timothy.maguire at tesco.net
> Sent: Monday, April 05, 2010 8:46 AM
> To: computer-go at dvandva.org
> Subject: [Computer-go] Komi and the value of the first move
> I've been looking at a lot of theoretical questions about Go, and
> there's a point that seemed interesting and I'd like to know what other
> people think.
> I read that the value of the first move is accepted to be 20 to 30
> points.
> If you consider the effect of black passing rather than making the
> first move so allowing white to make the first move, then the remainder
> of the game starting with white's first move and followed by black
> would be identical to a game with black starting, except with the
> colours of stones reversed.
> As I see it this would mean that the value of the first move has to be
> twice the value of the Komi, as it should have eactly the same effect
> as swapping adding the komi to one side rather than the other,
> therefore resulting in a change of 2 x Komi to the final score.
> This would put the value of the first move at 13 to 16 points.
> Does anyone have any thoughts on this?
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