# Important Chess Tactics Patterns

You are here: Home > Tactics > Patterns

It’s important to know chess tactics patterns because it supports an effective calculation method and will improve your tactical awareness.

Here’s a list of the important chess tactics patterns you should know.

## List of the Important Chess Tactics Patterns

Note: You should also study the given examples to help you get a better understanding of the patterns.

### Blocking (Interference)

Interference or obstruction

blocking a critical file or diagonal

### Clearance

Clearing a square; Opening a critical square, file or diagonal

Counter-tactics

### Double Attack

A double attack is when you create multiple threats with one move. Although a fork and a double attack are often used interchangeably in chess, it’s technically not the same thing.

### Double Check

The king must move.

### Fork Tactics

A fork tactic is when one of your pieces are making multiple threats at the same time. Even though a fork is sometimes referred to as a double attack, it’s not the same thing. The main difference is that a fork refers to multiple threats made by one piece, whereas a double attack can involve multiple threats by more than one piece.

Examples of Fork Tactics.

### Pawn Tactics

Often overlooked because the focus is on the pieces

### Pin Tactics

A pin is when a threatened piece cannot move without exposing an even more valuable piece (or target) behind it. The link below will take you to an in-depth study of pin tactics where you can learn the basics but also the advanced aspects of pin tactics:

### Remove the Defender

.. Capture a defender .. Overload a defender .. Attack a defender

Remove the Defender

### Simplification

into a winning endgame

### Skewers

Skewers (sometimes referred to as a “reversed pin”) occur when an attacked piece must move to safety but will expose a lower-valued piece (or target) behind it. Skewers appear visually similar to pins, but their impact is very different.

and drawing

### X-Ray Tactics

An X-Ray tactic occurs when two of your pieces defend one another “through” an enemy piece. The X-Ray tactic should not be confused with a pin, skewer or discovered attack. (Although they share some similarities, the concept behind an X-Ray is unique).

Examples of X-Ray Tactics.

### Zugzwang

position IS ok but forced to make a weakening move

### Zwichenzug

or In-between move