Leonid Kubbel

Kubbel was born in Saint Petersburg at the end of 1891, or beginning of 1892[1] and died in the same city (then called Leningrad) on 18 April 1942.

He was christened Karl Artur Leonid, but dropped the first two names around the time of the 1917 Russian Revolution.

[2] He composed more than 1500 endgame studies and chess problems, many of which were awarded first prize for their great beauty and original conception.

Arvid Kubbel was a strong over-the-board master, having played in the first four USSR chess championships, while Evgeny was himself an endgame composer.

Both Leonid and Evgeny Kubbel died of starvation in 1942 during the Nazi siege of Leningrad, while Arvid was executed by the NKVD in 1938.