Today’s 5-second tactics

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gm Ipatov,A
From the World Team Championship in Turkey yesterday. Position after 38 moves, this part of the game, no doubt, taking place when both players were short of time (the time control is 40 moves). Black is dead, but still kicking (!). Time to put him out of his misery…
WHITE TO PLAY AND FORCE MATE!
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gm Giri,A
gm Kramnik,V
Turkey. Also from yesterday’s round. Position after White’s 33rd move (33.Bxc6). It has been a wild,complex fight so far. Probably both players are also short of time. Kramnik’s sacrífice can not be taken because 34.Qb6+ would be decisive. In the game continuation Giri played the imprecise 33…f3, and while this might not lose with correct play, Kramnik emerged at time control with a won game (Giri resigned on move 41).
HOWEVER, Black is not the least bit worse in the position above (!)…but he must still find the BEST move. This is your task.