In the end, chess is NOT about 'capturing the king'...
A king CANNOT step into check--it is simply an illegal move! Therefore, if taking a piece would place the king IN CHECK, then the king cannot take the piece, EVEN IF the piece that would cause the king to be in check is itself pinned.
What I'm assuming, here, is that you disallow checks from pieces that are pinned... however, such a check can be an integral part of a strategy!
Basically, interference tactics are some of the most beautiful, hardest to find,, and most misunderstood moves--taking them away takes away from the richness of the game of chess!
The Gambit King
Be6 is double check!
The bishop is pinned by the rook
I would play: Bb8 to C7check!, take note that the white bishop have no control on c8(Its pinned)
Defense is as powerful as attack!
haha, ok you had me at my own game, see what I mean, i missed that it is not check, because the bishop is pinned by the rook!
Remember the golden rule...a king can only be in check, if the opponent have control of such square...the aim of chess is not checkmate, but to control space, and therefore to wipe opponent from the board. If the opponent are pinned or cramped to zero space, then there is nothing to win, or to play for...Opponent would just give up.
Its a brutal and unkind game...The winner take all.