This is a strange and wonderful puzzle, the goal being to not checkmate in one move. The solution is unique.

 

First . Unique indeed.

Interesting. I like it. Just add a pawn on f2 since e3 is hanging =)

vaguely familiar or eerily similar?

http://www.chess.com/forum/view/more-puzzles/do-not-checkmate

whopps, the knights r on  f1 and d1, forgot to include that.

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That explains why something like Na3 doesn't work :) I was confused as to why my attempts kept failing... Good puzzle anyway.

this one is dumb.Black resigned.

How do you get so many queens?

almu12, there are other moves that don't mate in 1.

loomis,you again

I saw that puzzle on "Problema zilei" so i know is rock c6+ :)

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Four, in fact. Qgg8, Qgh8, Qhg8, and Qhh8

only four moves that mate?

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I count 8 moves that don't mate. The four you mentioned and four more.

I'll add the remaining four: Qdg8, Ke2, Ke3, Ke4.

I stand corrected. :) Thanks guys.

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 There are actually 22 moves that don't mate: Qhh8, Qgh8, Qdg8, Qgg8, Qhg8, Qcf7+, Qdf7+, Qff7+, Qgf7+, Qg7g6+, Qh7g6+, Qh6g6+, Qg5g6+, Qf5g6+, Qf6g6+, Q6h5+, Q5h5+, Qg4h5+, Qh4h5+, Ke4, Ke3, and Ke2.

Perhaps you meant there were 8 moves that weren't check?

nice seen it before