nice

The famous story of The ole' Rook Sacrifice!  Thank You for the lesson.

fun

GOOD

nice one

easier than expected

It is checkmate because the knight on f4 guards the g6 square as well as the e6 square.

I'm starting to see a pattern on these puzzles, always sacrifice material you insticntually would want to keep first.  Then solve.

GOOD PUZZLE!   FORCING Q TO D MIDDLE.

yes!!!!

idealistic!

Good!

easy

medium

Black king is in the open.