easy one

I think they labeled this as being difficult because Nabokov considered placing this puzzle in his book. Otherwise, it wouldn't make much sense, their comment, that is...

More "unchallenging": queen sac, something like an Arabs' mate, done and dusted.

BAMM!

If this forum a bit more regulated by the moderator, then the one who say "first" or "Second" or so on, should be banned for a week. Then, I believe no one will want to say first, second and so on. LOL :)

why wouldn't Rxd5 work. also results in a mate in 2

FIRST

NICE

Mighty fine.

nice

Rook captures D5 wins too, doesn't it?

No, I guess ... B d3 slows it down one move. never mind

something worthwhile!

Nice.

SZ.

Thank you. The itallicized text before you type even says: "Please be helpful, relevant, and nice" 

Relevant, helpful and nice, how's that?

"Challenging"?  Okay, it does a good queen sac illustration though.  The title implies a forced mate.  Besides, you can see the needed coverage for the rook.  More like a Monday puzz than a Wednesday puzz.

I found the Queen Sacrifice solution only because I knew it was to be a mate-in-two, and I diligently searched until I found it.

In a game I would probably have captured the rook at h8 with my queen, expecting:
1. ...    Qh6+
2. Kb1  Qxe6 (or ...  Nd7)

As the board opens up to us, Black is up a knight, but White is poised to capture the knight at d5 with his pawn (at this point he has six pawns to black's 3) or trade his remainging knight for Black's h-rook.  Either way, White should win. 

 I doubt that in a game I would have had the mind set to look for a queen sacrifice forced checkmate.  I would have been too focused on equalizing the material pieces while keeping my pawns advantage for the endgame, and keeping the positional advantage of the "bottled up" pieces in the upper left corner. 

Nice!  I like this one a lot!

Too good puzzle. Thanks chess.com. I am happy today, I could solve it.

good