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1...b4
1...Rc5 2.Rd1d5? 3.b4 +-
2.c4 +/-
Freezing Black's structure and making sure we aren't left with a backward pawn.
Karina Ambartsumova
Samuel Sevian
PRO League Prelim 2023
Black to move
Unity Chess Club
Karina Ambartsumova Samuel Sevian PRO League Prelim 2023 Black to move
On certain occasions, the knight is better than the bishop, especially in closed positions or in those where the knight has a strong square where it cannot be kicked away. How do you play here?
21...Nc6
The most tricky move in my opinion with a hidden idea.
22.Qe3?
A mistake! Now Black can get a fantastic position. Can you find the move? 22.Qd3! should have been played.
22...Qc5!
Exactly! d4 is the square. From there the knight is a beast, and can be supported with ...e5.
23.Qd2 Nd4 24.Rc3 e5
The maneuver has been completed and Black enjoys a better position.
Boris Gelfand
Haik Martirosyan
FIDE Grand Swiss 2021

White to move
Unity Chess Club
Boris Gelfand Haik Martirosyan FIDE Grand Swiss 2021 White to move
Note that the e4-pawn is hanging at the moment. I really love the way Gelfand handles this position. He makes a great sequence of moves to control the two open files: c and d.
19.e5!
The bishop on g2 is useless. Trading the c6-bishop is good for White since that bishop protects b7 and blocks the c-file! Moreover, White gets access to the d6-square!
19...Nfd5 20.Nxd5 Bxd5
Taking with the pawn is naturally bad for Black, since it will become an easy target
21.Nd6 b6 22.Rc1 Bxg2 23.Kxg2