The Grunfeld arises after 1.d4 Nf6 2.c4 g6 3.Nc3 d5 (ECO D80). In hypermodern style Black lets White build a big pawn centre, in order to attack it afterwards with pieces and the fianchettoed bishop on g7.
The main idea is pressure on White's centre along the long diagonal and the open files. After the exchange on d5 White has a powerful pawn centre, but Black sets out to prove that it is a weakness rather than a strength.
The Grunfeld is one of the most principled and theory-heavy openings there is. Fischer, Kasparov and Carlsen all handled it brilliantly; it demands exact knowledge but gives Black genuine counterplay.
Set it up on the board, move the pieces around and copy the FEN - or open the full walkthrough of the opening in a separate article.
Drag a piece onto the board, or click a piece and then click the squares. The cross beside the pieces sweeps every piece of that colour off the board, and a single piece can be dragged off the edge.
The pieces will be arranged into the chosen pattern.
It is the mating side to move. Find mate in one.
Openings, endgame positions and breakthrough studies - the set-up appears on the board.
Build your own position in the board editor, read up on the rules of chess or run a tournament on your own positions in the free app.
Pairings are computed by bbpPairings, an open-source engine implementing the Dutch system by FIDE rules: score groups, floats on an odd field, colour alternation. Free to use.
proper rounds with correct pairings, not random matchups
a full circle, with the round count derived from the field
a light format with no tournament machinery
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