And this is today's challenge,
(It's from the book - 'Ancestor' by Scott Sigler )
Colding, the man is playing White, Jian, the female is playing Black.
"Colding moved his Queen's knight and smiled. "Check"
Page 206 (no other moves had been played in-between)
She set her rook in a new space that blocked his check.
Colding smiled and started to move his knight into attack position,when he
saw that by moving her rook, she had put his king in check with her bishop.
"Checkmate in two moves." said Jian.
(hmmm...blocking a knight check with a rook, that's clever.)
OK. Set up a position and play it our via a PGN where all this is legal.
Adding, when Colding was planning to move his Knight 'into attack
position.' he was actually going to mate Jian on that move.