The Four in a Row Board and Pieces

How many pieces are in Connect 4, and how big is the board? Here are all the numbers for the standard four-in-a-row game.

QuestionAnswer
How many columns?7
How many rows?6
How many spaces?42
How many pieces in total?42 discs
How many pieces per player?21
How many ways to make four in a row?69
Fewest moves to win7 in total (4 by the winner, 3 by the loser)

Why 7 columns and 6 rows?

The 7 × 6 board gives a good balance. A smaller board leads to too many quick wins or draws, and a bigger board makes games long. Some versions use other sizes; see Five in a Row and Bigger Boards.

How many pieces in Connect 4: a 7 column by 6 row board with 42 spaces and two stacks of 21 discs
42 spaces and 21 discs for each player.

How big is a real board?

Tabletop sets are usually around 25 to 30 cm wide. Garden versions can be over a metre tall. Online, the board fits your screen.

The middle column

The middle column (column 4) is the most valuable on the board, because more possible winning lines pass through it than any other column. Learn why in Best Opening Moves.

Number of winning lines through each space, from 3 in the corners to 13 in the centre
The middle column sits on the most winning lines.