rook and king

!yag

What's more interesting, is that White can force stalemate in 3 .......

What's more interesting is: why would he? unless to get laid, of course.

Well, it's a greater mental challenge than a mate in one.....

easy...

all of these puzzles were amazing in my opinion!! This is the kind of stuff every chess player should know isn't it? Where can I find more pawnless endings puzzles? Like king and two bishops etc.

nice

Matalino, the only problem with those puzzles is, in several positions there is more than one equally good move, and so it can get a little frustrating at times.

the idea is not to find a 'good' move but it is to find the best move. I also found that there were multiple options, but in almost every single case, without using the solution button, I chose as my second or third choice in one case, the correct answer and realized that indeed it was the best move.

What makes it the best move? Because it wins faster! In all puzzles or worth, the most efficient route is the correct solution.

Yes, but in these puzzles there are multiple routes to the same goal. e.g. 5 or more ways to mate in the same number of moves. Usually because the rook is making a tempo move and can move anywhere on a rank or file.