Nikolai Grigoriev
Nikolai Dmitrievich Grigoriev (Russian Николай Дмитриевич Григорьев; born August 14, 1895 in Moscow, † November 10, 1938 ) was a Russian- Soviet chess player, organizer and composer of endgame studies.
Life
Grigoriev father was a violinist and played for several decades in the orchestra of the Bolshoi Theatre. In his childhood, Grigoriev was outstanding play violin and draw well. But besides music and painting interested him the exact sciences, mathematics and astronomy. Grigoriev grandfather was an Armenian priest.
1914 ended Grigoriev his schooling in a Moscow high school and enrolled at the Faculty of Moscow University Physics and Mathematics. In 1917 he was drafted to the front and had to drop out of college. After a serious illness and his recovery, he worked in various government Etinrichtungen and from 1920 as a mathematics teacher in schools.
Grigoriev died in 1938 in Moscow at the consequences of an infection he got a appendizitisbedingten appendectomy. Alexander Herbstman led to death due to the fact that in 1938 the medical care immature and was not aware of any penicillin.
Tournament chess
With 14 years Grigoryev started to deal with chess and soon became a strong player. A game against Alekhine played in 1915 in Moscow, came in Alekhine's family journal Vestnik Schachmatny. In a specified later version of the lot, five ladies were after 23 trains and three farm conversions on the board (see also the article MacCutcheon variant). In the All-Russian Chess Olympiad in 1920, the first major tournament after the revolution, Grigoriev took the 5th - 7th Place, though he at the same time under the most difficult conditions to hold the event provided protection. In 1921, he played a match against the eventual World Chess Champion Alekhine ( 0-2 = 5).
Grigoriev won four times the Championship of Moscow (1921, 1922, 1924 and 1930), he constantly played in the USSR championships. In the fifth national championship in 1927, he fulfilled the norm in 1929, he shared in the Leningrad 1 -2. Place with Romanowski in the International Workers tournament.
His best historical Elo rating of 2610 reached Grigoriev in January 1922, which he ranked among the world's best 14 players.
Editor and organizer
In 1922, Grigoriev in Izvestia, one of the largest-circulation daily central time Ingen a chess corner. She was the first weekly chess publication in the country.
Study
Grigoriev composed more than 300 studies and was particularly as a specialist in pawn endings.
The study shown in the diagram position, Grigoriev first appeared in 1930 in the Soviet chess magazine 64 In this endgame the correct advance of the pawns on the game decides output. Improperly would be the white pawn advance 1 h2 - h4, although black can with the king not stop the transformation of peasants, but in turn, leads by 1 ... d7 -d5 his free d-pawn to queen, after which the game would be balanced. With the proper train
White uses of the position of the opponent's king on a3, as he threatens to retire with chess bid on f8, after which the black d- pawn not come across the field d2 addition. Therefore, the black king must approach the f-pawn or its promotion square f8:
At a train of the f-pawn the king must move up to stop the conversion. Pull the white h- pawn, it does him the black pawn the same, this is repeated until the finale:
The following two transformations with chess bid secure the victory, Black finds no time to use his pawns: