Square

The board has sixty-four squares, thirty-two light and thirty-two dark. Each one is named by the letter of its file followed by the number of its rank, so the square in the lower left corner for White is a1 and the square in the opposite corner is h8.

Why squares matter: chess is a game of control over squares. A piece does not just attack other pieces, it controls the squares it could move to. Strong players think in terms of key squares, weak squares, outposts, entry squares and squares of promotion.

Square color is a real strategic factor. A bishop can only ever visit squares of one color, so a pawn structure that places many pawns on the same color as your bishop makes that piece poor, while holes on the opposite color can become permanent weaknesses. In endgames the color of the queening square can decide whether a lone bishop can help.

Only one piece can stand on a square at a time. A piece may move to an empty square or capture an enemy piece there, but it cannot land on a friendly one.

Practical advice: practice naming squares instantly and their colors. Cover a diagram and recall the color of squares such as c4, f6 and b7. Visualization is faster when every square has a name you can say without thinking.

Beginners often confuse a square's color with the color of the piece on it. They are unrelated.

A neighboring idea is Chessboard. The chessboard is the playing field for every game of chess, a large square divided into eight rows and eight columns of light and dark cells that alternate, set so the corner nearest each player's right hand is light.

Compare it with Rank. A rank is any of the eight horizontal rows of the chessboard; FIDE numbers them 1 to 8 beginning on White's side, and rooks and queens slide along them while pawns climb from one rank to the next.

Also worth reading is Coordinates. Coordinates are the letters a to h along the files and the numbers 1 to 8 along the ranks that give every square of the chessboard a unique name, such as c3 or g7.

Knowing "Square" 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

• Chessboard

  The chessboard is the playing field for every game of chess, a large square divided into eight rows and eight columns of light and dark cells that alternate, set so the corner nearest each player's right hand is light.

• File

  A file is one of the eight vertical columns of the chessboard, labeled a to h from White’s left to right, and a key line along which rooks, queens and pawn structures operate.

• Rank

  A rank is any of the eight horizontal rows of the chessboard; FIDE numbers them 1 to 8 beginning on White's side, and rooks and queens slide along them while pawns climb from one rank to the next.

• Coordinates

  Coordinates are the letters a to h along the files and the numbers 1 to 8 along the ranks that give every square of the chessboard a unique name, such as c3 or g7.

• Weak square

  A weak square, also called a hole, is a square that a player's own pawns can no longer guard, so an enemy piece can settle there without being challenged by a pawn.

• Outpost

  An outpost is an advanced square, usually in the opponent's half of the board, that is protected by one of your own pawns and cannot be attacked by an enemy pawn.

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 (taking effect from 1 January 2023), Article 2.1, read Oct 21, 2026.
• FIDE Laws of Chess (taking effect from 1 January 2023), Appendix C.7, read Oct 21, 2026.
• FIDE Laws of Chess (taking effect from 1 January 2023), Article 3.1, read Oct 21, 2026.