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Consider these two openings (only one move):
How much would it matter for good chess players (let's say 2000+ FIDE) which of these openings their games started with?
Let's say White wins in approx. 55 % of all GM games. In what percentage of games do you think White would win, if forced to start with opening A? And what if forced to start with opening B?
You are right, my question was unclear. It should have said: let's say White scores approx. 55 out of 100, in GM games. Now, how much do you think White would score if forced to play opening A? How much, if forced to play opening B?
I've read tons of pages about openings. Still, I find this question interesting.
At master level, I would guess white would score about 75% in opening A, and 45% in opening B.
Thanks, pawn_eater. What do you base this on?
The stats tell absolutely nothing, with so few games.
Yes, maybe I should let some engines have a go at it.
And if Houdini can beat Rybka 100% of the time in these openings what does that tell you other than Houdini can beat Rybka 100% of the time in these openings?
Here's some statistics from my database (4,945,000~ games):
1.d4 g5: 13 games (mostly kids and unrateds...plus two thrown games) - White won 9, Black won 3.
1.f3 e5: 62 games - White wins 30.6%, Black wins 62.9%
Of course both engines would have to play White and Black, in the same number of games. If not, this experiment would be worthless.
Thank you for the numbers, but that's still not enough to say much statistically about the strength of these openings. Maybe regarding 1. f3 e5, it might at least give us a slight hint. However, to be statistically reliable we would needs 1,000 or more games played with each opening. Preferably more than 10,000.
I thought I could have some engines have a go at it, automatically playing tons of games. So far I haven't found a way to do this.
1.d4 g5 strikes me as a good test of engine endgame ability - what is an extra pawn worth at stratospheric level ?
I would expect pro players to score above 80% from this position (at least those over 30, who can play decent endgames )
I suspect both positions are still probably drawn on best play, although I'm not entirely sure about the first one, since white does gain a pawn.
I think the last move is more important than the first move. Also the next to the last move is paramount in a chess game! The first shall be last, and the last shall be first! White must attack, and black must defend! The King's can change colors; the white king can become the black king, and the black king can become the white king depending on the positional initiative. It really makes no difference if you: "Black or White!" King of Pop, Michael Joseph Jackson, August 29th 1958 - July 25th 2009. "You gotta play the game!" Tony Dungy ESPN Football Analysis!
Omar, I have no intention of playing any of these two openings. The reason why I choose these openings for raising this question is that my engine considers opening A to be the best possible opening for White, and opening B the best possible opening for Black.
Laurent, if a score of 80 % with White with opening A, then what do you think would be the score for White after opening B?
madhacker, if both of the openings lead to a draw with best play, then first moves essentially do not matter. Somehow I doubt that.
I think your engine is broken
Why is that? Which first moves (White and Black) would you propose as being better for White and Black, respectively?
I think my engine evaluation makes sense. In opening A, White already got a hold on the center, and after 2. Bxg5, White will have a piece in play and be a pawn ahead. Black has nothing.
In opening B, White has exposed his King, haven't laid claim to the center, and need to move another pawn before he can get a Bishop out. Further, the pawn on f3 is standing in the way for the Knight on g1.
Apologies, I read it as opening A being best for Black and B being best for White
Only if you're a hypothetical perfect computer which evaluates a position as either 1, 0.5 or 0.
For us humans, even though two positions are both drawn on best play (known to above computer but not to us), one can still be far preferable to the other in practice. This is what the symbols += and =+ mean.
madhacker, I think engines, as well as humans, would score better with White starting with opening A, than with opening B.
cigoL, for the imperfect engines we have today that would be correct.
What I said was, I have a hunch that on perfect play, both the positions presented would be drawn, i.e. defendable by the weaker side.
So you think chess will be a drawn game, once solved?
Can't defend against bishop taking F7 pawn first
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