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2...Rf8! 3.fxe5 dxe5 4.dxe5 Bxe5+ 5.Kg1
5.Rxe5? Rxd2 6.R5e2 Rf2! with decisive pressure.
5...Bg3 6.Rf1 Rfe8 7.Rxe8+ Rxe8
Intending 8...Re2 with a huge plus.
Petrosian - Lilienthal
Moscow 1949
White to move
Preparing g3-g4 in order to clear some space for the bishop pair.
1...Nf6 2.g4! fxg4 3.hxg4
Located side by side the pawns deny the enemy knights any protected squares.
3...Rc7 4.Kf2 h6 5.Rh1 e3+
Desperate; but after 5...Rh7 6.Rag1 , followed by Ke3 and Bc3, Black is also in deep trouble.
6.Bxe3 Ne4+ 7.Kg2 Nf7 8.Bd3
White later won the game.
Miles - Portisch
Buenos Aires 1978
Black to move
Clearing some space for the bishops before White manages to consolidate by Nd6, Kg2-f3, etc.
2.Nd6
After 2.exf6 gxf6 Black obtains a potential passed pawn, and White loses his outpost on d6.
2...Bg6 3.Nc4
3.Nxb7? Rb8 4.Rd7? Be8 5.Rc7 Rxb7! 6.Rxb7 Bc6 -+
3...Bd4 4.Kg2 Be8!