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1. The Pin: Pinning can be defined as an attack on a piece which screens a
second piece from attack. The piece in front is usually of lesser value than the piece behind it
making it undesirable for this piece to be moved lest you lose the piece behind instead.
This is known as a Relative Pin since, However undesireble, the piece still can move legally.
however if the piece it protects happens to be the king then the pin
is considered to be an Absolute Pin, since moving the piece is illegal
as one can never expose one's own king to check (a direct attack)
Only The long Range pieces can implement a pin I.E. Bishop, Rook or Queen.
"The defensive power of a pinned piece is only imaginary." - Nimzovich
"Just because a piece is pinned don't assume it cannot move!"
In The case of a relative pin Though loss of a piece may occur
your opponent may find resources and tactics that allow them to
Move a pinned piece with deadly Consequences For YOU instead of them!
"Don't assume because a man is blind that he cannot see"-Master PO
A Relative Pin Gone Bad:
2. The Fork- When one piece makes multiple threats at once or attacks two or more simultaneous pieces
3. The Skewer- The opposite of the PIN in this case the more important piece is in the front and in trying to save itself allows the piece behind it to get skewered like a shishkabob.
4. Deflection- To lure a piece away from a certain area or square to expose or take advantage of another weakness in the opponents position.
5. Clearance Sacrifice- The Sacrifice of one piece to clear a critical Square for another piece.
6. Discovered attack- When one piece in its moving uncovers an attack by a
second long range piece.
7. Discovered Check- When one piece in its moving uncovers an attack by a
second long range piece giving check to the king
8. Double Check- When one piece in its moving uncovers an attack by a
second long range piece giving check to the king, while at the same time also giving check.
This is one of the stronger attacks in chess as there is no answer to this other than moving the king.
often this is the final blow or the beginning of the final blow in chess. Since the king is attacked simultaneously both pieces are immune to capture and blocking is not an option as the second piece would still be left attacking the king.
Next Month: Advanced Tactics and Strategy!