12/8/2021 – After blundering in game 8 of his World Championship match against Magnus Carlsen, Ian Nepomniachtchi also blundered and lost in game 9. Carlsen now leads 6-3 and with five games to go the match is practically over. Wesley So took a close look at game 9 and concludes: "Ian was playing very well early on in the match but ... game 6 was clearly the turning point in this match as before that both players were playing equally well and it seems that Ian was no inferior to Magnus. ... Ian is a great player and even the greatest players make mistakes. Unexpected and miserable stuff happens to us all, and we hope Ian will be able to move on and get his mojo back asap!" | Photo: Wesley So (Archive) | Photo: Lennart Ootes

12/7/2021 – The World Championship match in Dubai might theoretically finish after 11 (out of 14) games, as Magnus Carlsen scored a third victory in four games after Ian Nepomniachtchi inexplicably blundered a piece in an equal position on Tuesday. The challenger now needs to win 3 out of the 5 remaining encounters to take the match to tiebreaks. | Photo: Niki Riga

12/7/2021 – Not quite a London System and not quite a Veresov. The unusually named ‘Barry Attack‘ lies somewhere between the two. Yet another challenging queen pawn system that Black has to prepare for.

12/7/2021 – First, thank you very much for all the answers! We are delighted that this calendar is so well received. Door number 6 proved to be one of the most difficult ones, although the majority were able to find the somewhat bizarre move Kh8. If you thought door 6 was tough already, today we raise the difficulty even more. Good luck!

12/7/2021 – This year, the Dutch National Championship was played in two stages. In the knockout preliminaries four players had qualified for the finals: Max Warmerdam, Robin Swinkels, Roeland Pruijssers, and Hing Ting Lai. Max Warmerdam convincingly won the finals, a double round-robin which was played last week. | Photos: Harry Gielen

12/7/2021 – In queen endgames having the initiative is crucial. In the diagram position it is Black to move and it is Black who has the initiative. But how should he proceed?

12/4/2021 – Despite the most difficult task to date, a large number of clever players were able to find the solution, C. Kc4. Karsten Müller explains in the video exactly why only Kc4 wins and no other move. By the way - thanks for the lively participation. We have received more responses to our calendar than last year at the same time! That's wonderful! Today's example is about holding a draw, although it's with only one pawn against three pawns.

12/4/2021 – Magnus Carlsen is leading the World Championship match against Ian Nepomniachtchi after scoring a memorable win. In our fourth and final instalment of Carlsen’s previous matches, we look at his 2018 confrontation against Fabiano Caruana. For the first time in a match for the crown, all the classical games finished drawn. The defending champion won the rapid tiebreaks categorically though, and thus kept his title. | Photo: Niki Riga

12/4/2021 – In the diagram position, White has a strong passed pawn on c7 that should help him to win the game. But first White has to take care that Black's rook on b1 does not run havoc. How would you continue with White?

12/3/2021 – In what will surely be remembered as a highlight of World Chess Championship history, Magnus Carlsen defeated Ian Nepomniachtchi in a 136-move marathon which included missed chances, deep time trouble and a number of subtle manoeuvres worthy of a combat for the highest prize in the world of competitive chess. Find here the fantastic encounter annotated by super-GM and elite analyst Anish Giri. | Photo: Eric Rosen

12/3/2021 – In this week’s show, GM Daniel King looks at games from Viktor Kupreichik (3 July 1949 – 22 May 2017), a brillant and imaginative attacking player who was never afraid to sacrifice. | Power Play is on air most Fridays. Watch it on-demand with a ChessBase Premium account. All the usual puzzles, games and instruction will be on offer.

12/3/2021 – The new Corr Database 2022 is the large ChessBase collection of correspondence games from the period from 1804 to 2021. With more than 80,000 tournaments and over 2 million correspondence games, the Corr 2022 is a must for all correspondence chess fans. But the Corr Database is very popular even among many grandmasters and trainers, since correspondence games often herald the development of opening theory!