Gary Gifford wrote on Wed, Aug 16, 2006 04:34 PM UTC:
In reply to this question:
Can a king moved to square that is attacked by a pinned piece?
Answer: No.
In further response to the example given, i.e: White has a knight pinned
by a bishop ... [is] black allowed to move [his King] to a square attacked by the
knight?
Answer: No. A king cannot move into check, even if the checking piece is
pinned. An easy way to see why this makes sense is this: If that King
could expose itself to check, then so could the other King. And if that
were the case White could simply play N x K.