[Event "St. Petersburg"] [Site "?"] [Round "0"] [White "Marshall"] [Black "Lasker"] [Result "0-1"] [FEN "r3r1k1/pp1b2bp/1q1p2p1/2nP2B1/3p3Q/3B1N1P/PP4P1/3R1RK1 b - - 0 1"] 1... Ba4 {Attacking the Rook} (1... Nxd3 2. Rxd3 Bb5 3. Rb3) 2. Bxg6 { Leading to a remarkable liquidation} (2. b3 Nxd3 3. Rxd3 (3. bxa4 Nb2 4. -- d3+ ) 3... Bb5 $19) 2... hxg6 3. Bd8 Qxd8 4. Ng5 Qxg5 5. Qxg5 Bxd1 6. Qxg6 Bc2 $1 { One of the basic principles of good defence ... the willingness to give back any materialgained} (6... -- 7. Rf7) 7. Qxc2 d3 8. Qd1 a5 {Now with Rook and two minor pieces, together with a powerful passed pawn, Black has more than sufficient compensation for the Queen} 9. Qg4 Rf8 10. Rd1 Rae8 11. Qg6 Re2 12. Rf1 (12. Rxd3 Nxd3 13. Qxd3 Re1+ 14. Kh2 Be5+ $19) 12... d2 13. Rxf8+ Kxf8 14. Qxd6+ Kg8 15. Qd8+ Kh7 16. Qh4+ Bh6 0-1