The Witness: Marsh (Tetris Block Puzzles) Walkthrough

The Witness is an open-world, exploration-puzzle game, offering mystery and intrigue that is answered only by exploration and solving two-dimensional puzzles. Sometimes the answer to a puzzle can be found in the puzzle itself, and sometimes you need to explore your environment.

Note: While we encourage everyone to at least try and complete The Witness without the use of guides, we understand that sometimes frustration can set in. Before spoiling it for yourself, take a break and return at a later time. If it still doesn't click, feel free to use the guide below.

Marsh Walkthrough

The Marsh (Trophy name) laser in The Witness features a series of puzzles involving Tetris-like blocks. In most cases, you need to draw a line that reflects, and includes, the form of the shape. Of course, things get tricky the further you progress.

Be sure to check out our full walkthrough of every puzzle in The Witness.