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666_tactical motif_FORK
Compiled by whiteshark

A fork is a tactic whereby a single piece makes two or more direct attacks <simultaneously>.

Most commonly two pieces are threatened, which is also sometimes called <a double attack>. The attacker usually aims to gain material by capturing one of the opponent's pieces. The defender often finds it difficult to counter two or more threats in a single move.

The attacking piece is called the forking piece; the pieces attacked are said to be forked. A piece that is defended can still said to be forked if the forking piece has a lower value.

Besides attacking pieces, a target of a fork can be a <direct mating threat> (for example, attacking an unprotected knight while simultaneously setting up a battery of queen and bishop to threaten mate). Or a target can be <an implied threat> (for example, a knight may attack an unprotected piece while simultaneously threaten to fork queen and rook).


Forks can possibly <be escaped>. A forked piece such as the queen might check the enemy king, <a zwischenzug>, giving time to move the second forked piece to safety on the next move.

read further: Wikipedia article: Fork (chess)

check out:

THE MOTHER OF ALL FORKS - A Guided Tour of Chess:

Ne7+ --> Kg8/Rc6 || decoy into a N-fork
N Kosintseva vs N Zhukova, 2009 
(C10) French, 46 moves, 1-0

... Nf2+ --> Kg4/Bd1
Mamedyarov vs Karjakin, 2015 
(E21) Nimzo-Indian, Three Knights, 87 moves, 0-1

Nc7 --> Ra8/Re8
M Swayams vs L Pantsulaia, 2014 
(A56) Benoni Defense, 49 moves, 0-1

L Perunovic vs A Panic, 2008 
(A48) King's Indian, 23 moves, 0-1

You never fork alone...
Carlsen vs W So, 2017 
(D02) Queen's Pawn Game, 41 moves, 1-0

L Aslan vs K Delaney, 2017 
(B17) Caro-Kann, Steinitz Variation, 28 moves, 1-0

Shabalov vs A Vitolinsh, 1986
(A30) English, Symmetrical, 36 moves, 0-1

35...e4! (0:1) deflects Q from c3
Pelletier vs M Vachier-Lagrave, 2013 
(D85) Grunfeld, 35 moves, 0-1

Polugaevsky vs Ghitescu, 1969
(A05) Reti Opening, 40 moves, 1-0

...Nd3+ 0-1
Karavaev vs M V Golubev, 1980
(B77) Sicilian, Dragon, Yugoslav Attack, 18 moves, 0-1

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