Chess960

Chess960 starts every game from a shuffled back rank, then plays by the ordinary rules. White's pawns stay on the second rank and the remaining white pieces are set on the first rank at random, with two limits written into the FIDE guideline: the king must stand somewhere between the two rooks, and the bishops must stand on opposite-colored squares. Black's pieces are placed opposite White's. Those limits give the variant its name, 960 possible setups. One legal arrangement, read from the a-file, is knight, rook, king, bishop, bishop, queen, knight, rook. Because memorized opening lines are useless, you have to apply principles from the first move: develop, centralize, protect the king and connect the rooks. Castling needs its own wording, since king and rooks start in different places. Each player may still castle once per game, and the guideline lists four ways it can happen: both pieces move, king and rook swap places, only the king moves, or only the rook moves. Whatever the start, the result is fixed. After castling towards the c-file the king is on c and the rook on d, and after castling towards the g-file the king is on g and the rook on f. The guideline sits outside the Laws proper, so check what an event announces.

It sits close to Horde chess. Horde chess is a variant in which White has a large mass of pawns instead of the usual army, while Black plays with the normal set of pieces, and Black tries to capture them all.

It sits close to Queenside castling. Queenside castling is a move in which the king steps two squares toward the a-file rook and that rook jumps over to the square the king crossed, written 0-0-0 or O-O-O in notation.

Also worth reading is Half-move. A half-move, also called a ply, is a single turn by one side, so a full move in chess notation consists of two half-moves, one by White and one by Black.

Knowing "Chess960" is the easy part; what to practice next depends on your rating, and the improvement plans by rating band list the habits worth building at each level.

Related terms

• Starting position

  The starting position is the fixed arrangement at the start of every standard game: pawns on the second and seventh ranks, pieces behind them, queens on their own color, and a light square at each player's right.

• Castling

  Castling is a special king move that shelters the king and activates a rook in one turn: the king goes two squares toward an unmoved rook, which then jumps to the king's other side.

• Chess variant

  A chess variant is a game played on a chessboard with pieces that move as in chess but with at least one changed rule, setup or goal, such as Chess960, Crazyhouse or Three-check.

• FEN

  FEN is a compact line of text that records a chess position: the pieces rank by rank, whose turn it is, castling rights, any en passant square, and two move counters.

• Rules of chess

  The rules of chess are the Laws of Chess, the document FIDE publishes that sets out how pieces move, how a game ends, how clocks and records work, and how arbiters handle problems.

• Opening principles

  Opening principles are general guidelines for the first moves: control the center, develop knights and bishops quickly, castle early and avoid moving the same piece twice without reason.

Guides that go further

• How to choose a chess coach

  What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid.

• How much does chess coaching cost?

  Published rates for private, group and subscription chess coaching, with the source and the date of each.

• The first lesson

  A game review, a read on your level and a written study plan from George Li.

Sources

• FIDE Laws of Chess (effective 1 January 2023), Guidelines II.1 to II.3, read Oct 21, 2026.