nice puzzle but got stuck on third move

why didn't he take your knight

I liked this puzzle a lot.  I have gotten a lot better at chess just by doing puzzles.  I found some of the hardest puzzles at www.thechesswebsite.com  They are like really hard.

nice one

nice puzzle

 If 3. . . pxN(Q), then 4. RxQ, and white has a winning position.  3. . . pc1(Q)+, black queens with check, and looks to have some chance of winning the game.

it is cool, but the queen can take the knight

 Not without loosing. If he takes the knight, and promote to queen, the rook will take back.

nice puzzle i honestly didnt think about the knight move forgetting totally like everyone has said how the rook would just retake