I have my doubts about some of the material in this thread.Some of the openings discussed here,like the KID, I know nothing about.The Wing and BD gambits are considered suspect,their evaluations dependent upon the time controls.However,other gambits listed here,like the Fromm,SMG and Danish are considered solid;their popularity wanning or waxing depending upon fashion.
My refutations of openings (early pawn sacs)
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Jan 10, 2014
0
#83
lol..right you are...I meant to write 1.e4 c5 2,Nf3 d6 3.d4...theNajdorf;I have e4 e5 on the brain.The purpose of drawing attention to the fact that the Qe7 line of the Danish has been around since the 19th century and is in fact a mainline variation,is to point out that 3.c3 Qe7 doesn't refute anything.However,it's quite possible that the next MCO will correct a century of error and rule the Danish dead ; at which point I will reverse my position.
I need to find a way to show black's e5 weakness in a concrete line, along with f3 e4 breakthroughs by white
THE SLAV, THE QGD, AND THE GRUNFELD WERE ALL REFUTED ACCORDING TO ANAND, ARONIAN, KRAMNIK, AND CARLSEN WHO SHOWED THAT WHITE HAS A FORCED WIN IN THE GRUNFELD AND BIG ADVANTAGES IN THE OTHER OPENINGS. ALSO THE ALAPIN WAS REFUTED BY THESE SUPER GRANDMASTERS
The Slav is extremely popular at the moment.... As is the Grunfeld. But okay.
ajian wrote:
Now i'm looking for ways to refute the stonewall dutch
I think in Euwe's book (The Middlegame 1) shows how to play against the Dutch Stonewall properly without tricks.
the smith morra gambit is pretty good but not as good as the good old reliable 2. Nf3 according to this paper:
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2415203
Apr 7, 2014
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#97
There is a misunderstanding in this thread as to the chess definition of refute.Refute doesn't mean,one's game becomes more difficult,in chess "refute" means one's winning chances are few to none,draws are still very possible but essentially one has no chance of winning.The side playing a refuted line is essentially passing on the oppertunity to win and will struggle for a draw.
Apr 7, 2014
0
#98
ajian wrote:
I've never lost to the KID even against a 2435. (who i beat) However, due to the massive complexity of the main line, I will be wrong
in some cases.
It seems that even the great ajian can lost when playing against the KID http://www.chess.com/echess/game?id=82360306
ajian wrote:
so far my refutation of the blackmar diemer has went through and my wing gambit one works. you guys are making it hard for me in terms of from and danish
Your 'refutation' of the blackmar diemer is so hilariously deficient I'm guessing no one felt the need to address it. No one would play 6.Bc4 after 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nc3 Bg4. Just so you know, 6.h3 is almost certainly White's best move in that position. That leads to the Teichmann defense, which has been mapped out pretty thoroughly and after 6...Bxf3 7.Qxf3 c6 8.g4, there's probably no advantage for Black there, but there are plenty chances for Black to mess up horribly in its hapless quest for an endgame with an extra pawn.
The most challenging systems against the BDG, both from a theoretical standpoint and a practical standpoint are the Lembergher defense (3...e5) and the O'Kelly/Ziegler defense (4...c6), and I anticipate the more dogmatic advocates of those systems will have some strong things to say about this opening (and perhaps me, for even playing it) quite soon. It's unclear if Black can concretely refute the gambit in those lines, but I think Black can definitely equalize by force a few ways and there is the potential for some lines to lead to =/+ endgames. I can't leave my engine running days on end for every move in every variation, to be sure of it.
And ? So?.....every computer analyized line in the Danish has black ahead coming out of the opening...so what.The line you quote,has been played for at least 115 years;it is hardly new, and most,if not all the really good Danish players have seen it.The 3...Q7 line is probably the 3rd most popular defense against the Danish among players rated 1800+USCF,the Capablanca Defense and the Schlechter Defense being probably the most popular.