Blokus (officially pronounced "Block us") is an abstract strategy game with transparent, Tetris-shaped, colored pieces that players try to play onto the board. The only caveat to placing a piece is that it cannot lie adjacent to your other pieces, but instead must be placed touching at least one corner of your pieces already on the board.

There is a solo variation where one player tries to get rid of all the pieces in a single sitting.

Components

• Blokus Game Board (400 squares)
• 84 game pieces (four 21-piece sets of red, green, blue, and yellow)

Each color includes:

• 1 one-square piece
• 1 piece with 2 squares
• 2 pieces with 3 squares
• 5 pieces with 4 squares
• 12 pieces with 5 squares

Objective of the Game

Each player has to fit as many of their 21 pieces on the board as possible.

How to Play

1. Each player pick a color and places that set of 21 pieces in front of their side of the board. The order of play is: blue, yellow, red, and then green.

2. The first player (blue) places any of their pieces in a corner square. Play proceeds clockwise around the board (yellow, red, and green), with each player putting their first piece down in one of the corner squares.

3. Play continues as each player places one piece during a turn.

Every new piece must touch at least one other piece of the same color, but only at the corners.

No flat edges of the same color pieces can touch.

There are no restrictions on how different color pieces can touch one another.

4. Whenever a player is unable to place one of his/her remaining pieces on the board, that player must pass their turn.

End of Game

The game is over when all players are blocked from laying down any more of their pieces. This also includes players who may have placed all of their pieces on the board. Scores are tallied, and the player with the highest score is the winner of the game.

Scoring

Each player counts the number of unit squares in their remaining pieces (1 unit square = -1 point).

A player earns +15 points if all their pieces have been placed on the board plus 5 additional bonus points if the last piece placed on the board was the smallest piece (one square).