Blunderchess.net – blunder for your opponent every five moves

In plain words

Blunderchess.net is an open source, peer-to-peer chess application where players alternate making moves for themselves and their opponent. Every five moves, each player gets to make one "blunder-move" on behalf of their opponent, introducing an element of sabotage to the game. It is designed for players who want to add unpredictability and humor to traditional chess gameplay.

written from the facts on this page · September 2026

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