Rook h7 is the key to checkmate, but why doesn't the puzzle go to that point?

lol

Fun! That was a good one

1st 

Rook cooperation is paramount in most endgames!

nice game its very intresting and its a knowledgable game i love it and it refreshes our mind i think all should play it and its a nice website 

good one

cool.....

all forced moves to mate

Done 

Easy but ...

Cool little puzzle. :)

Nice

ok

Paralysis sets in for Black.

Too easy..

Staircase checkmate... I've learned this. A good endgame.

nice

7. Rf7 + Kb8

8. Qb7 (Gives you a pawn to take out first :-)