Carlsen Vs Caruana Game 2 , 2018
White: Carlsen Vs Black: Caruana, Game drawn , 49 moves.
Game 2 turned out to be much less dramatic than Game 1 but
it had some interesting points. Caruana surprised with his choice of defence when
he opted for 6.-- c5. He surprised again by playing something that's generally
considered unplayable on move 10.
Diagram after 10 Rd1
Instead of the comparatively staid 10 Rd1, White can mix
things up even more by castling queenside with 10 O-O-O, leading to violent
attacks and counter-attacks. That queenside castling looks, and is, highly
dangerous because both sides will launch pawn storms. Plus, the centre is
likely to open up, which means rapid piece transfers from one flank to another
are very possible.
After 10. Rd1, black needs to open up the c8 bishop. That
leads to jockeying for -- e5. This line
is famous, or notorious, for the stem game, Game 21, in the Karpov Korchnoi match of 1978. That
tactical genius, Mikhail Tal, found a vicious piece sacrifice while working on
Karpov's team . Korchnoi refused to take the piece and finally won a crazy, complex
fight. The sacrifice is now generally
considered sound but not a winning option.
That went 10. Rd1 Re8 11. Nd2 e5 12. Bg5 Nd4!!? 13. Qb1 Bf5 14. Bd3 e4 ? when 15. Bf1!
probably wins outright. Korchnoi played
15. Bc2 Nxc2 16. Qxc2 Qa6 17. Bxf6 Qxf6 18. Nb3 Bd6 19. Rxd5 (1-0, 60
moves). Subsequently black has tried
14.-- Bxd3 15. Qxd3 Ne4!? which is supposedly balanced. There's plenty of not-so-hidden
insanity in that position.
Carlsen played a very non-committal response, 11. Be2 to Caruana's "novelty" 10. Rd8. This is not really a novelty - it used to be written off as a bad move but it's been played before, and white is supposed to get an edge with 11. Nd2. Nigel Short said he always thought Rd8 was just unplayable and he's a long-term connoisseur of this line, which he played in his Candidates match against Speelmann back in the 80s. What idea did Caruana have?
That Kt d2 regroup is the normal move, against the normal
10. -- Re8 - and Re8 is supposedly better than Rd8 because it supports the push
e5. Incidentally, black would be happy
if white was provoked into playing (for example ) 11. b4? Nxb4 12. axb4 Bxb4
13. Rc1 Ne4 which has been known to happen in amateur games. 11 Nd2 sets up threats of Nb3 and of b4
perhaps.
Anyway, Carlsen chose to grovel as he called it with Be2. Presumably
the Don has found an idea that works against 11. Nd2 in the Rd8 line. We'll
probably get to see it, since white can't really avoid these QGD variations, if
he's going to play Bf4 instead of Bg5. But Carlsen will go back and his team will
take a long, hard look at this position before he plays Nd2.
Ducking a battle meant Carlsen was now on his own and he
took a lot of time. He must have found a line that Caruana had studied since
the challenger reeled off his moves almost without pausing for thought.
Diagram After 16. -- Nxd5
On move 17, we came
to another major cross-road. Carlsen had already spent an hour, while Caruana
had spent just 5 minutes. White can try 17. Nxf7!? Kxf7 18. Bxd6 Rxd6 19. Bh5+
Kg8 20. e4 when black can stabilise with 20.-- Bd7 21. exd5 Qxa4 . Or he can
try the very unclear 20.-- Nf4 21. Rxd6 Qxh5 22. Rd8+ Kf7 23. Rfd1 e5! - here
black will forget about his Ra8 and let it go in many lines playing things like
24. Qb3+ Be6! 25. Qxb7+ Kg6 and try to deliver mate with the formidable combination
of B+N +Q against an undefended kingside. The engines say it's equal.
Magnus pulled the emergency brake as Hammer put it by
playing 17. Bf3 instead. After that, it's a question of bailing out to a drawn
rook ending, which he duly accomplished without much fuss. Maybe black can keep
something with 22.-- b6 . In the final position, white just plays Ra4-b4, a4,
etc. unless black plays Kf3 when he checks with Ra3+. If black tries to penetrate
with Ra6/b6 - a1, white puts his king on g2, and Ra7, f7, e7, etc. to hold the
draw.
Verdict: Moral victory for Caruana, drawing easily with
black. But this line is very likely to come up again. Carlsen will repeat 1 d4,
and he's likely to face 6--c5. A repeat could be a serious test of the line and we'll learn about Caruana's idea (or ideas).