🍌 Banana Peel — Misclick Detection

What Is a Banana Peel?

A Banana Peel (🍌) is how Cohen Chess Club marks moves that were likely misclicks. After each tournament game, Cohen analyses every move you made. When a move is significantly worse than the best alternative — and the best move was obvious from the position — it gets flagged as a Banana Peel. These are moves where you probably knew the right move but clicked the wrong square.

How Banana Peels Are Detected

The detection algorithm considers several factors:

• Centipawn loss: The move must be significantly worse than the engine's top recommendation (typically >200 centipawns worse).
• Obviousness: The best move must be "obvious" — within a small window of the previous move's quality. Random blunders from not knowing a tactic are not misclicks.
• Proximity: The clicked square is often adjacent to or near the intended square. The algorithm checks if the destination could reasonably be a slip from the intended square.
• Piece identity: If you moved a completely different piece than the best move suggests, it's more likely a misclick.

Banana Peels and Bullseye

Banana Peels feed directly into your Bullseye accuracy dashboard. Each flagged misclick appears as a data point on your accuracy heatmap. Over time, the Bullseye page shows patterns in your clicking — which parts of the board you tend to miss, and whether your accuracy improves with practice.

Why Banana Peels Matter

Tracking misclicks turns a frustrating experience into a learning tool. Instead of just being annoyed that you slipped, you can see exactly where and how it happened. Common patterns include:

• Dropping a piece one square short of the intended target
• Clicking the wrong piece when multiple pieces are clustered together
• Accidentally clicking "submit move" before confirming the square
• Touch-screen errors on mobile devices

By reviewing your Banana Peels on the Bullseye page, you can work on your clicking precision and reduce game-losing errors over time.

Banana Peels and Cohen Coins

Banana Peels do not affect your Cohen Coin earnings — you still earn coins for the tactics found in your game, even if you made a misclick. The Banana Peel is purely a feedback tool, not a penalty.