Today’s 5-second tactics

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Kulovana, Eva
Vojtek, Vladimir
WHITE TO PLAY AND WIN!
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Skliba, Martin
Blahynka, Martin
WHITE TO PLAY AND WIN!
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Novotny, Michal
Szotkowski, Jakub
HOW CAN BLACK GET A WINNING ADVANTAGE?
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Mrazek, Lumir
Vesely, Martin
WHAT IS BLACK’S BEST CONTINUATION?
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SOLUTIONSTCh-CZE Vychod 2014.2.23; Vojtek, Vladimir–Kulovana, Eva: 22.Re8+!! A well known trick in such positions 22… Qxe8 23.Nxf6+ Kg7 24.Nxe8+ and with both material and positional advantage White won quickly in less than a dozen moves.
TCh-CZE Vychod 2014.1.26 Blahynka, Martin–Skliba, Martin: 27.Qe7! 1-0 A bit premature, but quite understandable. The threat is not just taking the Bishop but 28.QxR+!! and 29.Bh6+ followed by mate next move. If 27…Rc8 then 28.Bh6 renews the threat on the back rank. At best Black can escape being mated, but with a lost position and an Exchange down. Throwing in the towel, as said, is very understandable.
TCh-CZE Vychod 2014.1.26 Szotkowski, Jakub–Novotny, Michal: 26…Bh3!! Crushing 27.gxh3 Bxc5 Threatening mate on g1 28.Qd1 Be3 29.Nd3 Rg6 30.h4 Qh5 0-1 Further resistance is futile.
TCh-CZE Vychod 2014.2.9 Vesely, Martin–Mrazek, Lumir: Black’s attack is more advanced than White’s as the g-file is already open. Perhaps now 18…Rg7 followed by doubling Rooks is the best practical continuation, but Black was charmed by a beautiful sacrificial idea (that is also strong!) 18… Rxg2!? 19.Kxg2 Rg8+ 20.Kf1 Rg1+!! If it was not for this brilliant move the entire combination starting on move 18 would be unsound, as the White King can escape to the Queenside The game continued 21.Kxg1 Qxh3 22.f4! Only move to avoid the immediate mate 22… Qxe3+ 23.Kg2 Bxf4 24.Ne2 Bxe2 25.Bxe2? (25.Bf5 was the only chance for survival) 25… Qxe2+ 26.Kg1 Qh2+ 27.Kf1 Bxd2 28.Rc2 Nc4 29.Rxc4 dxc4 30.Qxc4 Be3 0-1