Three L-tetraminoes

Here is a cool puzzle I heard from Tiago Hirth at the last Gathering for Gardner, who in turn heard it from Donald Bell.

Puzzle. You have three L-tetrominoes. Arrange them on a plane without overlaps so that the resulting shape has a line of symmetry.

L Tetromino
L Tetromino
L Tetromino

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One Comment

  1. Lazar Ilic:

    Lazy Loves Fish

    ZZZ-
    X-ZY
    X–Y
    XXYY

    ZZZ–
    Z-YYY
    XXY–
    -X—
    -X—

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