MentoChessGet the app

Attacks with opposite-side castling

Level: Class A (1800–2000)Topic: Tactics35 minutes

In short

With kings on opposite wings, speed decides. Push the pawns in front of the enemy king, use your pieces to open files, and avoid defensive moves unless forced.

By the end you can

The lesson

With kings on opposite wings, speed decides. Push the pawns in front of the enemy king, use your pieces to open files, and avoid defensive moves unless forced. A single tempo often decides who mates first.

Sacrifices to open lines are common; count the tempo gained rather than the material lost.

Key points to remember

Examples

h1g2f3e4d5c6b7a8
Example 1 (Black to move). Open lines on the queenside. (Lichess puzzle 2Y8JT, rated 1802)
Show the solution

28... Qa2+ 29. Kc1 Qa1+ 30. Nxa1 Rxa1#

Practise it

Solve puzzles on this idea: queenside attack puzzles, kingside attack puzzles.

Homework

Study two opposite-castling games in the master database (e.g. Sicilian Dragon).

More tactics lessons