Wednesday’s winning 5-second tactics

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AN EASY ONE TO START WITH!
fm Korley, Kassa (2428)

gm Stukopin, Andrey (2566)
This season’s US Chess League. 2014.9.10 Position after 19 moves. White has an obvious positional edge with his control of the only two open files on the board. He could now continue advantageously 20.Rh2 which would probably win a pawn…BUT there is better! MUCH BETTER!
WHITE TO PLAY AND WIN!
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gm So, Wesley (2755)

gm Molner, Mackenzie (2522)
US Chess League 2014.9.24 Position before Black’s 18th move. At first sight what can go wrong with White’s position? Everything is defended!
BLACK TO PLAY AND WIN A PIECE!
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Huang, Gary M (2204)

Smith, Shaun M (1950)
US Chess League 2014.9.17 Position after Black’s 23rd move (23…Ng5). A typical position arising from Queen’s-Gambit Openings. White is better on the Queenside (pawn-structure); Black on the Kingside (initiative). Correct now is 24.NxN QxN 25.Kf1! with a balanced struggle in progress…INSTEAD, White played with fire:
24.Ne5?!

No doubt White was counting on something like 24…BxN 25.PxB Qxe5?!26.f4!
BLACK TO PLAY AND CRUSH!
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