Isakas Vistaneckis (Isaak, Itzhak Vistinietzki) (29 September 1910 in Marijampolė – 30 December 2000 in Tel Aviv) was a Lithuanian Jewish chess player who held the chess title of Correspondence Chess International Master (IM).
In 1930, Isakas Vistaneckis won the Lithuanian Championship.
[1] Vistaneckis played for Lithuania in five official Chess Olympiads and in one unofficial Olympiad at Munich 1936: In 1941, he won the 1st Lithuanian SSR Championship.
In June 1941, he played at Rostov-on-Don (Rostov-na-Donu) (sf USSR ch.).
In 1942, he tied for 4th-7th at Sverdlovsk (Ekaterinburg), behind Viacheslav Ragozin, Vladimirs Petrovs, and Alexei Sokolsky.
[3] Vistaneckis played many times at Lithuanian SSR championships.
The Vistaneckis Variation of the Main Line of the French Defense (1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Ng8) is named for him.