Stigma wrote on 02/01/18 at 06:29:31:
BigTy wrote on 02/01/18 at 03:11:24:
I have also noticed an absence of some of my favorite defences, which happen to be quite tactical and subject to deep computer preparation (hence their popularity in correspondence chess). I am thinking mainly of the Semi-Slav and Sveshnikov Sicilian. I remember a few years back when the Anti-Moscow Gambit was all the rage, but now it seems like I never see it anymore (though of course I don't look at every game). Likewise, when was the last time a top GM employed the Sveshnikov in an important game? Even the legendary Najdorf seems to pale in popularity next to 1...e5.
Maybe you're aware of this, but in both cases it may be largely
White that's avoiding these in OTB play. The Rossolimo has been all the rage for several years, and it's well-known that the main point of that is to avoid the Sveshnikov. So the situation is similar to the Marshall Gambit and the Berlin, or whatever other Ruy line the top players are avoiding when they're all playing the Italian and slow Spanish lines these days: These defences are so strong they have become victims of their own success. The Najdorf still has strong defenders like MVL and is seen now and then; the difference there is White players still seem to think it's worth going into instead of avoiding it with some Anti-Sicilian.
For the sharper Semi-Slav lines I'm not sure, but it could be a combination of things. The status of calmer White ways to avoid them, like the Catalan, the Slow Slav, the Exchange Slav and even the London system and the Réti have all improved in the last decade.
The same is also true of some of Black's alternatives as a "partner defence" to the Nimzo-Indian, like the Queen's Gambit Declined and the Ragozin. The Chebanenko Slav as a calm alternative in the Slav main line also had its time in the sun, but I think I see it less often these days.
You're probably right, though when I do see a Sicilian, it tends to be with 2...d6, heading for a Najdorf, rather than 2...Nc6. Black players probably know that if they play 2...Nc6 they will get a Rossolimo, so they don't bother.
I play both the Najdorf and the Sveshnikov, and have trouble deciding which one I really want as my main defence to 1.e4. The deciding factor could be the number of Bb5 Sicilians I get after my second move. I definitely see more Rossolimos than Moscows, but fortunately most of the time I get an Open Sicilian, which motivates me to continue playing and studying these openings. That could change though.
Regarding 1...e5 though, I took it up again for some time last year, reverting to the Zaitsev as my weapon against the Ruy, but I hardly ever got it in an actual game, and when I did, it was usually not a critical line. I was a bit dissapointed in the number of slow Ruys and Italians I was getting, which is probably one factor that pushed me back to playing the Sicilian most of the time. My point here is that it seems as though trends at the top are trickling down to club level, though perhaps it has always been that way.
Regarding the Semi-Slav, I often wonder why I play it at all considering that almost half my games after 1...d5 are some kind of d-pawn system (usually the London), and even within the Semi-Slav my opponents often dodge the most critical lines (so I end up studying a lot for nothing). I sometimes think that I should just play the Dutch exclusively to ensure an interesting game. Again, this seems to be a result of the London being popular at the top, because some years ago, I hardly saw it at all.
These trends at the top, besides being ways to avoid ultra-solid defences like the Berlin, perhaps also reflect a growing need for players to not take risks, especially with White. As chess continues to evolve, I feel more and more like White players first of all try to ensure they cannot lose, and only then try to win (hence a preference for the London over the Anti-Moscow Gambit).
Thoughts?