11/10/2020 – Yesterday, November 9, was the 50th anniversary of the 1970 Interzonal Tournament played in Palma de Mallorca, Spain. The best players in the world participated, including four giants of the chess world hailing from the Soviet Union: Vasily Smyslov, Efim Geller, Mark Taimanov and Lev Polugaevsky. | Photo: Chessy Publishing House

8/5/2020 – Bobby Fischer was the star of the show at the 1970 Interzonal Tournament in Palma de Mallorca, before starting an amazing run that led him to challenge Boris Spassky for the World Championship title in Reykjavík 1972. But was he always winning in the endgame he played against Vlastimil Hort? Or could have Hort defended? We asked our readers to help settle the historical debate. And they helped endgame expert GM Karsten Müller to settle the question! | Drawing of V. Hort: Otakar Masek

7/29/2020 – Bobby Fischer obtained an astounding 18½ out of 23 score to win the 1970 Interzonal Tournament in Palma de Mallorca. In round 5, the American genius defeated Vlastimil Hort with black in an opposite-coloured bishops endgame, but it is not clear whether the ending was always winning or not! Endgame specialist Karsten Müller asks for your help.