#20448 by MK

#20449 by Oreste

#20450 by PyChess

#20451 by Noname

#20452 by Noname

#20453 by Popovics Adam

#20454 by PyChess

#20455 by PyChess

#20456 by Carlsen Magnus vs Ding Liren, 2018-04-28

#20457 by PyChess