#line pieces

Tactics

Pins and Skewers: Two Sides of the Same Tactic, With Engine-Checked Examples and a Simple Way to Spot Both

Pins and skewers use three pieces on one line in reverse order. Absolute and relative pins, breaking a pin, skewers that win the queen, and a rook endgame trick

25/09/2026 5 min read

Tactics

Discovered Attacks and Double Checks: How Moving One Piece Unleashes Another, With an Engine-Checked Example

A discovered attack happens when a piece moves and reveals an attack by the piece behind it. How to spot them, why double check is almost unstoppable, and how t

24/09/2026 5 min read