In addition to the twofold attack and the double attack there are more tactic possibilities to capture a piece. Many times you can win a chess piece by first attacking it and then attacking the defending piece. Removing this guard results in leaving the first chess piece unprotected.
White can not capture the Knight at f4, [...]
As we have seen in the previous lesson the Queen is one of the pieces that is often involved in these double attacks. Most of the time it is relatively easy to find a square from which the Queen attacks two other pieces. But a double attack isn’t limited to an attack on pieces.
In this [...]
In the previous lessons you have learned to attack and to defend, but if your opponent always defends the pieces you are attacking then it will never be possible to capture a piece unless it becomes impossible to defend all attacked pieces or more precisely to defend all attacked targets. The twofold attack is one [...]
Piece activity is one of the most important strategic factors. As we will later see piece activity is not limited to mobility, but also includes other aspects like piece coordination. For this lesson however we focus on the mobility of pieces.
The mobility of a piece is the number of squares to which it can move. [...]
