Interrupting communication

Interrupting communication is a move by a third piece that lands between your piece and the bishop, rook, or queen that defends it. After the move that piece has no defender left, and the opponent can capture it with a piece that is not weaker.

Why you should notice it

The defender is still on its square. The line is what changed. A knight, a pawn, or another piece stepped onto the ray, and the piece that looked safe is now loose.

When to check it

This is a blunder check. A purple arrow shows the candidate. Ask: does that move stand between my piece and the piece that defends it, and can the opponent then take it for free? You also train the opponent’s move doing the same thing.

Abandoned defence is the defender itself leaving. This habit is a different piece blocking the line.

Why players miss it during games

The defender has not moved, so the piece still looks protected. The block is easy to miss when the candidate is about something else: a capture, a check, or a developing move.

How WayChess trains it

You click each piece that becomes a free capture. A blue circle marks it. After you submit, a correct circle turns green, a missed piece turns amber, and a wrong piece turns red. If no piece becomes a free capture, submit without marking.

Related checks

Abandoned defence is the defender moving away. Undefended pieces lists who is already loose.

See all habits.