Sets Based on the Straight Tetromino

Sets Formed by Adding Squares to a Straight Tetromino

Plus two squares

Plus two squares (one-sided set)

Plus three squares

Plus three squares (one-sided set)

Plus two dominoes

Sets Formed by adding a Straight Tetromino

Trominoes plus I tetromino

One-sided set

Tetrominoes plus I tetromino - this set of 70 pieces is unbalanced on a chessboard colouring and so no rectangle can be made.