the following position happened in one of my games long time ago, I was white. Black did not play good enough in Staunton gambit and here is a tactical thing already: white to move and win two pawns. I can't explain yet why I overlooked it...
15. ?
Solution:
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15.Rxe6 Qxe6 16.Nxd5 cxd5 17.Qxd5 Qxd5 18.Bxd5 e6! (18...Kh8? - one more pawn for white) 19.Bxb7 Nd7 20.Bxa8 Rxa8