The basic duck-tactic pattern I realized is that when your and your opponent's piece is separated by only a duck (so just one square) it's the same as an attack.
So that's why Bc5 Duck@d6 Qe7 Rf8 is a skewer.
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Oh, I just realized my opponent could have captured the pawn then played duck to d6... lol
This is how beginners must feel playing / posting about regular chess 
i like how duck d6 is a email lol
also yeah the tactics are interesting, its mostly separating pieces and finding utilizations, i might try it one day though i am not heavily interested much in that for right now but again one day
Yeah, I usually have no interest in variants.
It's kind of funny... players with high normal ratings seem more likely to make stupid mistakes. I guess because "normal" ideas distract them. I played an FM who lost pieces in stupid ways (and I did too) but then I'll play some guy with a 900 blitz rating who doesn't make any of those mistakes... they don't try anything fancy, but they also don't do anything really stupid heh.
I guess variants are interesting like that.
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What is duck chess?
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Since I'm new this is a beginner-level duck tactic (well, a trick), but I was pretty happy to have the idea.
I played c5@d4 (meaning pawn to c5 then duck to d4)
The idea is the queen can't capture since BxQ next.
And pawn can't capture because Bxc5@d6 which skewers queen and rook.
My opponent played pawn takes pawn so I won the rook
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