for Black. Anti-Tartakower–Makogonov–Bondarevsky (Anti-TMB): 5... h6 6. Bxf6 Bxf6 this line was extensively tested in the Kasparov–Karpov matches in 1980s. To this day Black has no problems in this line despite being tested at the highest levels. More recently, Boris Gelfand defended the Black side of this variation in the 2011 candidates matches which eventually he went on to win. For example, in the third round of the final candidate match, he forced White to accept a draw in 14 moves with a very strong novelty: Grischuk vs. Gelfand, Elista 2011. Lasker Defense: 5... 0-0 6. e3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7, is also a solid line, often leading to the exchange of two sets of minor pieces. It was this line that Viswanathan Anand chose in the final game of the World Chess Championship 2010 in order to defeat Veselin Topalov and retain the world championship. Orthodox Defense: 5... 0-0 6. e3 Nbd7 7. Rc1 c6 and now White has two main moves: 8.Bd3 and 8.Qc2. After 8.Bd3 dxc4 9.Bxc4 Black has surrendered the centre and stands somewhat cramped, but has succeeded in making White lose a tempo by playing Bd3 before Bxc4. White will try to use his advantage in space to attack, whereas Black will try to keep White at bay while striking back at the centre. Capablanca's main idea here was the freeing maneuver 9...Nd5 10.Bxe7 Qxe7 11.0-0 Nxc3 12.Rxc3 e5 13.dxe5 Nxe5 14.Nxe5 Qxe5 15.f4 Qe7, which has led to a number of exchanges in the centre, though Black must exercise care even in the wake of this simplification. This line was once so frequently played that it has a separate code (D69) in ECO, though the lack of active counter play for Black has made the main line of the Orthodox a backwater in modern practice. Cambridge Springs Defense: 4.Bg5 Nbd7 The Cambridge Springs Defense was introduced more than a century ago, and is still played. (1.d4 d5 2.c4 e6 3.Nc3 Nf6) 4. Bg5 Nbd7 (setting up the Elephant Trap) 5. e3 c6 6. Nf3 Qa5, now Black intends ...Bb4 and possibly ...Ne4, with pressure along the a5–e1 diagonal. This Black defense is popular among amateurs because there are several traps White can fall into, for example 7. Nd2 (one of the main lines, countering Black's pressure along the diagonal) 7... Bb4 8. Qc2 0-0 and here 9.Bd3 loses since 9...dxc4 (threatening