By Edward Winter
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Extra resources for Chessplayer Shot Dead in Hastings
There is no defense to mate at g8. Pinning 43. If you are already acquainted with this theme, you know that a pin is a tactical idea that prevents or discourages an enemy man from moving off a line lest it expose a comrade to capture or a key square to occupation. The pinned piece acts like a shield, which in both chess and life can be dangerous work. An absolute pin arises when the shielded piece is the king. Then of course the pinned piece is not allowed to move away from the line along which it is pinned.
Tolush-Keres, USSR 1939: 1. … Qg3+! (a typical decoying idea with the goal of queening a pawn with check) 2. Kxg3 e1=Q+ wins. 9. Instructive Example: 1. Re8+! (obstruction and decoying). 10. Larsen-Spassky, Linares 1981: 1. … g4+ (decoy) 2. Kxg4 Bh5+ 3. Kxh5 Qg5 mate. 11. Tal-Portisch, Biel 1976: 1. Nh6! (threatening smothered mate with 2. Qg8+) 1. … gxh6 2. Qxh7 mate. 12. Instructive example: 1. d7! Re7 2. d6 Rxd7 3. Ra8 mate! 60. Lesson 3 Clearance and Interference Square Clearance The goal of this type of combination is the freeing of a square which is needed by another one of your pieces.
Rxf8+! or 2. Qxh4, while 1. … Bf6 runs into 2. Qd6!. 2. Qe4 Qh4 3. Rf4 Black resigns 37. Black’s queen is forced to depart, leaving the bishop at e7 undefended. The deflection and decoy ideas are most frequently encountered in conjunction with a sacrifice. Diagram 19 Psakhis – Machulsky, Vilnius 1978 White to move 1. Rd8! A deflection and a pin all rolled into one. Black resigned, since there is no defense to the threat of 2. Qxf7+. On 1. … f6 or 1. … f5, 2. Qc4+ wins easily. Our next example shows how to drive a piece away from the defense of an important square.