Pinned pieces offer more chances for opponent to maximise grip

Chess Checks

Pinned pieces are powerless pieces in a game of chess and hence all efforts should be made to get out of a pin as soon as possible. If a piece is pinned , then the opponent tries to exert maximum pressure by targeting it with as many pieces as possible.
In the game which follows, White’s rook is pinned but the crafty way in which White unpins himself and simultaneously poses a checkmating threat is exciting to watch.
White: Ermenkov Ermenkov (2449) - Black: Pavel Kotsur (2587)
Dubai open, 2000
Sicilian Defence
1.e4 c5
The Sicilian Defence
2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6 6.c4 Bg7 7.Nb3 Ne7 If 7...d6 8.Nc3 Nf6 9.Bf4 0–0 10.Be2 e5 11.Be3 Be6 12.0–0 Nc6 13.f3 Rc8
8.Nc3 Nbc6
If 8...d5 9.cxd5 exd5 10.Bg5 h6 11.Bxe7 Bxc3+ 12.bxc3 Qxe7 13.0–0 dxe4 14.Bxe4 0–0 15.Re1
9.0–0 0–0
Still staying with Opening theory
10.Be2
A good move!
10...f5
Black is trying to steer the position to a sort of Dutch defence and in a previous game between Anand and Bologan the latter had tried 10...b6 11.Bg5 h6 12.Be3 f513.Qd2 Kh7 14.f3 Anand  was distinctly better 1
11.c5 fxe4
Black played a new move here. The tried moves here are  11...b6 12.cxb6 Qxb6 13.Be3 Qd8 14.f4
12.Nxe4 b6 13.Nd6
A very strong outpost. Black will have trouble in keeping this knight tied down
13...bxc5 14.Nxc5 Nd4
If 14...Nf5 15.Nxc8
15.Bd3 Qc7 16.Nce4 Be5 17.Be3Ndf5
If 17...Bxd6 18.Nxd6 Qxd6 19.Be4 with advantage for White
18.Rc1 Nc6 19.Nxf5 exf5
If 19...gxf5 20.Ng5 with the threat Qh5
20.f4
A good advance!
20. ..Bg7
If 20...Bxb2 21.Qb3+; 20...fxe4 21.Bc4+
21.Nd6
Sacrificing the knight well aware that Black cannot accept it as 21. ..Qxd6  22.Bc4+ loses the queen.
21...h6
Black should have taken his King away from the dangerous diagonal and played 21… Kh8
22.g4
This attacking advance was always in the offing
22...Kh8 23.Bb1 a5
White is in a dominating position and Black has virtually no play
24.Rf2 Ba6 25.gxf5 Rf6 26.Ne4 Rxf5 27.Ng3 Rf6 28.Qg4
Finally the queen also gets into the thick of action
28...Re6
If 28...Re8 29.Bd4
29.f5
Nailing the coffin! In this position virtually everything is winning for White
29...Rxe3 30.f6
White is threatening 31.Qg6 with checkmate to follow
30...Ne5
Probably the best move under the circumstances
31.fxg7+ Kxg7
If 31...Kh7 32.Bxg6+ And if 31...Kg8 32.Rf8+ Rxf8 33.gxf8Q+ Kxf8 34.Qf4+
32.Nf5+
If 32.Rf7+ Kg8! 33.Rxc7 Nxg4
32...Kh8 33.Qd1
Playing simple and sensible chess!
33...Qb6 34.Nxe3 Qxe3 35.Rc3 Qa7 36.Qd6 Ng4
Diagram 1
37.Rc5
A fantastic move! White kills two birds with one stone! This move unpins the rook at f2 and also is threatening 38.Rf8
37...Re8
If 37...Nxf2 38.Qf6+ Kg8 39.Qxg6+ Kf8 40.Rf5+ Ke7 41.Qf6+ Ke8 42.Qf8 checkmate And if  37...Rg8 38.Qd4+ also wins for White
38.Rf8+ Rxf8 39.Qxf8+ Kh7 40.Qf7+ Kh8
Black might as well resign now!
41.Qe8+ Kg7 42.Qxg6+ Kf8 43.Qd6+ Kf7 44.Qc7 and Black resigned
Diagram 2
White to play and win
1.Rxf5 exf5 2.e6 Bxe6
If 2...Qxd4 3.Nxd4
3.Rxg7+ Rxg7 4.Qf6 Bd7 5.Ng3 Rg6 6.Qf8  and White wins.

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