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4 Important Elements of an Effective  Chess Calculation Technique:

1-Always start your calculations by observing the consequences of your opponent’s last move

2-Understand the difference between forcing moves and non-forcing moves

3-Your chess tactics skill supports your calculation skill

4-The ability to calculate deeper variations rely heavily on your visualization skill

**Interference**

What Is An Interference In Chess?

An interference (sometimes also called an "obstruction") in chess occurs when a player interposes a piece between an enemy piece or critical square and its defender. As a result, the other player can no longer guard the attacked piece or square and usually faces a significant material loss or is checkmated.

Why Are Interferences Important?

The opportunity for a well-applied interference is not very common and, therefore, often overlooked. Precisely for this reason, this tactic can have a devastating effect on its victim. It often leads to severe material loss or even to an inescapable checkmate.

**Interference in conjunction with mating threats**

Take Your Time and Play the Best Move ♥

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**Interference of the defensive line**

Take Your Time and Play the Best Move ♥

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