Friday’s 5-second tactics!

I will add more training exemples as the day gets on. Solutions will be posted at the end of the blog article. GOOD LUCK!
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GRANDMASTER BLUNDER!
gm Inarkiev,E

gm Cheparinov,I
Position after Black’s 16th move (16…Ng6). From the Karpov Tournament taking place right now. The game is about even, with White having a bit more space but Black being compact and solid.
The White Queen must move, and the simplest move is 17.Qd2, hitting the Black d-pawn. Ofcourse, Black can just defend it (in a number of ways) and the game would continue. INSTEAD, probably momentarily losing his sense of danger, the Bulgarian superstar made a fatal error:
17.Qf3??

It is very rare that a strong grandmaster (rated over 2700 for a while) simply overlooks losing a piece!
17…d5!

0-1
White resigned.
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THE BREAK THRU!
gm Lopez Martinez, J
gm Salgado,I
Championship of Spain just the other day in Linares. Position after 25 moves. White has played a controlled game up to now and Black finds himself tied up and unable to get any play. Just the right circumstances for a bit of elegance…