Today’s 5-second tactics

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Both examples are from the Russian Team Championship (Men and Women) taking place this week. GOOD LUCK!
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Ivkina, Olga
Savina, Anastasia
BLACK TO PLAY AND WIN!
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Shahinyan, David
Bortnyk, Olexandr
WHITE TO PLAY AND FORCE MATE!
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16th TCh-RUS w 2014.4.9 Ivkina, Olga–Savina, Anastasia: 28… Rxg5+! 29.fxg5 Qxg5+ 30.Kh2?! (Better 30.Kh3, though 30…Bf5+! Follows) 30…Qh4+ (30…Be4! wins immediately) 31.Kg1 Be4 32.Re2 Qh1+ 33.Kf2 Qg2+ 34.Ke1 Qh1+ 35.Kf2 Qxa1 36.Rxe4 Qxb2+ and Black won easily (0-1 in 47)
21st TCh-RUS 2014.4.9 Bortnyk, Olexandr–Shahinyan, David: 37.Ng5+ 1-0 It is mate in two after 37…PxN