L EVANTAMIENTO E STRUCTURAL

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.0-0 Nxe4 5.d4

Are you bored of the theoretical stiffness in the variations with 4.d3, or the sterile positions from the previous chapter? Then join me for a few pages on a trip through the wild side of the Berlin.

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.0-0 Nxe4 5.d4 A) 5...exd4?

An experimental move, against which White can obtain a significant advantage with simple and logical play. 6.Re1 d5 7.Nxd4

The black position is not too enviable after 7.Qxd4!? either, mentioned already by Panov in his treasured opening manual (Editorial Escaques, 1960), long before the fall of the Berlin Wall.

a) 7...a6 8.Bxc6+ bxc6 9.Nc3 f5 10.Bf4± is very dangerous for Black, due to his lag in development, while if the artificial 7...Qd7 8.Bxc6 bxc6 (Panov mentions 8...Qxc6 9.c4 Bc5, missing the direct refutation 10.cxd5 Bxd4 11.Rxe4++–; risks that came with the job in the pre-computer era) 9.Nfd2±;

b) Black does not manage to stabilise the situation after 7...Be6 8.c4! Bb4 9.Qxg7 Qf6 10.Qxf6 Nxf6 11.Nc3±. 7...Bd6! 8.Nxc6 Bxh2+

This standard combination is in some way the justification of Black’s risky play. 9.Kh1

The only way to fight for a win. 9.Kxh2 Qh4+ leads to a draw, whereas 9.Kf1? Qh4 10.Be3 bxc6! 11.Bxc6+ Kf8 gives Black a dangerous attack.

The storm has calmed, and the material distribution appears reasonable for Black. However, White can exploit his advantage of the bishop pair, as well as the squares that the advanced e-pawn has left in its wake. It is more common to find this combination in the Open Spanish: 3...a6 4.Ba4 Nf6 5.0-0 Nxe4 6.d4 exd4?! 7.Re1 d5 8.Nxd4 Bd6 9.Nxc6 Bxh2+ 10.Kh1 Qh4 11.Rxe4+ dxe4 12.Qd8+ Qxd8 13.Nxd8+ Kxd8 14.Kxh2 Be6. Compared to the line we are currently examining, Black has flicked in ...a7-a6, which allows him to gain some tempi, because of ...c7-c5 ideas. Efimenko-Drenchev, Golden Sands 2012, continued 15.Be3 (stopping ...c7-c5) 15...f5 16.Nc3 Ke7 17.Bb3 Kf7 18.g4 g6 19.g5 (a typical procedure, fixing the opponent’s pawn chain) 19...Rad8 20.Kg3 Rhe8 21.Rh1 Kg8 22.Kf4 Bxb3 23.axb3 Re6, and White did not find a way to make progress.

Returning to the position of the previous diagram, the better position of the white bishop allows a sharp manoeuvre: 14.Nd2!

Rasulov-Abasov, Baku 2011, continued with the more typical 14.Nc3 f5 15.Bf4 c6 16.Be2 Ke7, and instead of 17.Be5?! Rhg8 18.a4 Rad8 19.a5?! Rd2, which gave Black good counterplay, White keeps the advantage with the typical push 17.g4!, and if 17...g6, 18.g5². With the black pawn chain blocked, White boasts a stable advantage. 14...f5 15.Nb3±

The knight threatens to jump to either c5 or d4 (in case of 15...b6) with annoying consequences, and after it has been exchanged for the black bishop, the bishop pair will show its irresistible force.

A transpositional move: Black wants to enter an Open Spanish after 6.Ba4 b5 7.Bb3, while sidestepping the fashionable line 3...a6 4.Ba4 Nf6 5.d3. Please forgive me for not going into any further details...

6.Bxc6!

The sharpest move is also the most natural: White is trying to make his shrewd opponent pay for the loss of time

incurred in an open position. White has another option at his disposal, which leads to a more complicated transposition: 6.Bd3 d5 7.dxe5 7.Nxe5 seems to equalise on the spot with 7...Nxd4, as in Paulsen-Morphy, New York 1857, which continued 8.Re1 (8.c4 Bd6! 9.cxd5 Bxe5 10.Bxe4 0-0³, Moroz-Buturin, Kiev 1986) 8...Be6 9.c3 Nc6 10.Nxc6 bxc6 11.Qa4 Qd7 12.Bxe4 dxe4 13.Qxe4 Bd6=. I challenge you to write a book on modern opening theory using a relevant example older than this one (not the King’s Gambit with 3...g5 or the Giuoco Piano)!

analysis diagram

This rather unexplored position is reached quite frequently from a Petroff Defence with the pawn on a7: 1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 (or in Murey’s fascinating line: 4...Nc6!? 5.0-0?! (5.Bxe4 d5 wins the piece back) 5...d5) 5.dxe5!? (5.Nxe5 is more common, but not necessarily better) 5...Nc6 6.0-0. It is possible to demonstrate that this minor difference favours Black:

7...Nc5! A novelty. Unlike the twin position from the Petroff, the bishop cannot go to b5, and after its exchange, Black should not have any problems to equalise. 7...Bg4 is also possible, although after the sharp 8.Nc3!? Nxc3 9.bxc3 Bc5 10.Re1 0-0 11.h3 Bh5 12.Rb1, following the example from the game Bacrot-Wang Yue, Baku 2008, but with the pawn on a6, White has some initiative. White’s plans include Bf5 and g2-g4. 8.Nc3 Be6= Here I felt tempted to make the typically old-fashioned statement that ‘the position requires further practical tests’, but I don’t think White players are anxious to carry those out, especially since the main line with 6.Bxc6 is so promising. Black can capture on d3 or develop his kingside first, depending on what his opponent does.

6...dxc6 7.Qe2 7.Re1 Nf6

analysis diagram

Correspondence players have experimented with this crazy position.

8.Nbd2!? Stronger than 8.Nxe5 Be7. White can press through the e-file with 9.Qe2 Be6 10.Nc3, but then 10...0-0! suffices, ignoring the threats. White has virtually nothing after 11.Nxf7 Rxf7 12.Qxe6 Qxd4 13.Be3 (13.Bg5 Ng4 14.Be3 Nxe3 15.Qxe3 ½-½, Hazai-Kaplan, Lublin 1975) 13...Qd6 (or 13...Qh4) 14.Qc4 Qb4 15.Qxb4 Bxb4=. 8...Be7 9.dxe5 Nh5! The knight boldly jumps to the edge of the board to prevent 9...Nd5 10.Ne4². An OTB example (‘Over The Board’, as our correspondence friends say) is Brajovic-Todorovic, Nis 1995, which continued 10...Bf5 11.Qe2 0-0 12.c4 Nb6 13.b3 Nd7 14.Bb2 Nc5? (14...Bxe4²) 15.Rad1 Qc8 16.Nxc5 Bxc5 17.e6! Qxe6 18.Qe5 Qxe5 19.Rxe5 Bc2 20.Rc1 Bd6 21.Rxc2 Bxe5 22.Bxe5±. 10.Re4! Otherwise the black knight will end up on e6. Incidentally, 11.Rd4 is threatened. 10...c5 11.Qe2! Not good is 11.g4? f5. 11...Bf5

analysis diagram

In Novikovas-Williamson, ICCF 2014, Black managed to circumvent the apparent dangers without suffering any major damage: 12.g4 Bxe4 13.Nxe4 f5! 14.gxf5 0-0 15.Neg5 (15.Nfg5 Qe8∞) 15...Rxf5 16.Qc4+ Kh8 17.Nf7+ Rxf7 18.Qxf7 Qe8=/² After a later ...g7-g6, the knight will return to the centre to blockade the central pawns.

The main line with 7.Qe2 seems more dangerous than this mess we have just analysed, but make no mistake: the SIM (Senior International Master; a correspondence title between IM and GM) Harvey Williamson and his rivals have devoted many more hours of analysis to uncover the subtleties hidden in these positions, and they might know something that we don’t. But to be fair, let’s not forget that analysing with the help of the computer is one thing; fighting against an opponent on your own and with limited time, is quite another.

8.Re1!

It looks strange to place the rook behind the queen in this position, but the threat of 9.Qd3 is surprisingly difficult to meet. White has two less dangerous alternatives at his disposal.

a) 8.Rd1?! Be7 (more adventurous minds might try 8...Qf6!? 9.dxe5 Qg6∞, the point being that 10.Nh4?! Qg4 11.Qxg4 Bxg4 12.f3 does not win any material on account of 12...Be7! 13.fxg4 Bxh4³) 9.dxe5 Qc8 leads to the variation 5...Nd6 6.Bxc6 bxc6 7.dxe5 Ne4?! (Chapter 12), with the black dark-squared bishop already developed, which makes the black position comfortable. Geller-Kaplan, Amsterdam 1974, continued 10.Nd4 (10.Be3 0-0 11.Nbd2 Nxd2 12.Rxd2 h6 13.Rad1 c5 14.Qc4 b6 15.a3 Qb7=, Aroshidze-Mastrovasilis, Korinthos 2004), 10...Bg6 11.Be3 0-0 12.Nd2 Nxd2 13.Rxd2 c5 14.Nb3 b6. Black has more than equalised by simple means;

b) 8.g4 Bg6 9.Nxe5 Qxd4 10.Nxg6 hxg6 11.Nc3 f5 looks dangerous for Black, but the open position of the enemy king allows him to generate enough counterplay. After the practically forced line 12.Bf4 0-0-0 13.Rad1 Qf6 14.Nxe4 fxe4 15.Rxd8+ Kxd8 16.Qxe4 Bd6, neither 17.Rd1 Re8 18.g5 (18.Qb4 Re2∞) 18...Rxe4 19.gxf6 gxf6 20.Bxd6 cxd6 21.Rxd6+ Ke7=/³ (Womacka-Matamoros, Olomouc 2006), nor 17.Bg3 Re8 18.Qd3 Kc8 19.b3 Qe6 20.Qf3 Rf8 21.Qd1 Re8 22.Qf3 Rf8 23.Qd1 Re8 24.Qf3= (½-½, Guseinov-Iordachescu, Budva 2009), gave White any advantage. 8...Qf6!?

After thinking for quite a while, I have decided to make this entertaining novelty our main line. Furthermore, the move has the merit of being the only move that doesn’t lose two pieces for a rook. Let’s examine other possibilities:

a) 8...Be7?! was played in Kr.Georgiev-Piket, Corfu 1991. After 9.g4! Bg6 10.Nxe5 f5, White got an edge with 11.Nc3, but as the Romanian grandmaster Mihail Marin mentions, it is stronger to play 11.gxf5 Bxf5 12.Qf3, and if 12...Nd6? (although in any case a desperate situation, it is better not to move the knight), 13.Bg5 and White is winning; b) In Ivanchuk-Carlsen, Morelia/Linares 2008, the Norwegian genius, caught by surprise, improvised with 8...Bb4?! 9.c3 Bd6. His opponent won material anyway with 10.Qc2, and the weakness created on d3 was not felt too much: 10...Qd7 11.dxe5 Bc5 12.Rxe4 0-0-0 13.Nbd2 Qd5 14.Kf1 Rhe8, and now, instead of 15.b3, Ivanchuk could

consolidate his advantage with 15.c4!? Qd7 16.Nb3±. You can see the exciting continuation of this game in Game 11 (Chapter 20);

c) 8...Bd6 was the other candidate move to be printed in bold. Black acquiesces to an unfavourable piece exchange, relying on his better development as compensation: 9.Qd3 0-0 9...Ng3? 10.Qb3 only makes things worse. 10.Rxe4 Bxe4 11.Qxe4 f5!? 11...exd4 12.Qxd4 Be5!? 13.Qc4 Qd1+ 14.Qf1 Qxf1+ 15.Kxf1 Rad8 16.Nbd2 Rfe8 17.Nxe5 Rxe5 (Simmelink-Van Wieringen, corr 1998) 18.b3² and 11...Re8!? 12.Bd2! (avoiding the trap 12.Nc3? exd4 13.Qxd4 Re1+! 14.Nxe1 Bxh2+ 15.Kxh2 Qxd4 16.Be3 Qh4+³) 12...exd4 13.Qxd4 Be5!? 14.Qxd8 Raxd8 15.Nc3 Bxc3

16.Bxc3²/± lead to the same type of position:

analysis diagram

I am not sure whether White can win this endgame against best defensive play, but at least he can try to do so without any risk, for example by softening up the pawn structure on the queenside by means of manoeuvring the knight, or by advancing the a-pawn to bring the rook to life. Black is forced to witness his opponent make progress without being able to undertake anything himself.

12.Qe2 e4 13.Ne5!? After a passive retreat to d2 or e1, ...Qf6 and ...Rae8 are unpleasant. 13...Bxe5 14.dxe5 Qd4 15.Nc3 Qxe5 16.Qc4+! Kh8 17.g3² With the queens on the board, White has the preferable position. For instance, if 17...Rad8, then 18.Qb4! is uncomfortable.

9.dxe5

9.Qd3 Nc5 leads nowhere. 9...Qd8!?

Preventing 10.Nd4 at the cost of lagging further behind in development.

9...Qe7 10.Nd4 Bg6 might be viable, but White is able to prevent queenside castling by simple means: 11.Nd2!

(11.e6?! c5!∞ (11...0-0-0 allows 12.Nxc6 bxc6 13.Qxa6+ Kb8∞)) 11...Nc5! (11...Nxd2?! 12.Bxd2 0-0-0? is refuted by 13.Nxc6 bxc6 14.Qxa6+ Kb8 15.Re3+–; 11...c5 12.Nxe4 cxd4 13.Bg5 Qe6 14.Qf3±) 12.N2f3 In any case, 12...Bh5!² (12...Ne6 13.Nxe6 Qxe6 14.Ng5! Qe7 15.Qe3!±, and the king is exposed, since penetration on a7 prevents 15...0-0-0), followed by, if possible, exchanging on f3 and ...Ne6, leaves Black with reasonable chances to equalise, after suffering for some time. Our main variation does not let Black off the hook so easily either, but at least he can have some fun while he tries to escape checkmate.

10.e6!

10.Rd1 would lead to a new transposition, in this case to the variation 6...Ne4 (Chapter 12) with the extra move ...a7-a6. This detail favours Black in the chaotic main line, which you may already know if you, like me, enjoy reading chess books in random order: 10...Qc8 11.Nd4 Bc5 12.b4 Bb6 13.f3 Qd7! 14.Be3 0-0-0 (the possibility ...Bg4 defends the piece indirectly) 15.c3 (with the pawn on a6, 15.a4 does not make much sense) 15...c5 16.fxe4? (16.bxc5 Nxc5∞) 16...cxd4! 17.exf5

analysis diagram

17...Qb5!! Long live tiny differences! The pawn on a6 allows this tactical shot. 18.Qxb5 dxe3!µ. There is no sense delving deeper in these subtleties, since the pawn sacrifice 10.e6 gives White a dangerous initiative.

10...fxe6

11.g4! Bg6 12.Nbd2!

12.Ne5? Bc5 13.Nxg6 Bxf2+ 14.Kf1 hxg6 15.Qxe4 Bxe1 gives Black a decisive counterattack. Better is 12.Nc3 Nxc3 13.bxc3, but after 13...Bd6 14.Qxe6+ Kf8 15.Ng5 Qe8!, Black exchanges queens, with better chances to equalise than

in the main line. 12...Ng5!

12...Nxd2 13.Bxd2 is too dangerous. The e-pawn cannot be defended: 13...Bf7 14.Ne5 Bg8 15.g5 with a decisive advantage to White.

13.Nxg5 Qxg5 14.Qxe6+

There is nothing clear after 14.Nc4 Qf6. 14...Qe7

Black has survived the direct threats, but he is far from equal in the endgame: 15.Qxe7+ Bxe7 16.Nc4 Kf8

16...Rf8 17.Re2 Kd8 18.Ne5± 17.Bf4 Bxc2

17...Bf7, 18.Ne5±, and apart from the c-pawn, 19.Nd7 is threatened. 18.Bxc7 h5!²

CONCLUSION

It is clear that 5...exd4 can hardly be played, perhaps not even in an ICC bullet tournament, but 5...a6, although too risky for the results it currently promises, might be used as an occasional weapon if you manage to improve on the main line, perhaps by refining the defence in the positions with rook vs. two minor pieces that arise after 8...Bd6. In any case, I have the impression that White has more scope to improve than Black.

Chapter 10