Tactics
Pins
Stuck and helpless
The idea
A pin is when a piece can't move because a more valuable piece sits behind it. Move the pinned piece and you'd expose the bigger one to capture. An ABSOLUTE pin pins a piece to the king — moving it would be illegal because it'd leave the king in check. A RELATIVE pin pins to a valuable piece — moving it would be costly but legal.
Example 1 of 1
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The black rook on e6 is pinned against its king on e8. If it moves, Rxe8#.
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Try it
Your move
The enemy rook is pinned. Capture it.
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