This is surely not the same guy. For one thing the game was played in Hungary in 2012, when the Canadian guy was about 95 or 96 and, according to the newspaper article, using a mobility aid.
The FIDE rating list shows a Hungarian born in 1958 rated 2209, named Zoltan Sarosi. That’s probably the player in this game.
The FIDE rating list doesn’t show the Canadian guy. That may be because they stop listing you after you have been inactive for long enough (I don’t know how long).
It may be the guy. If you look at the record using the Sarosi spelling in Hugebase, you’ll see the Canadian correspondence history and the tournaments played in Canada as well as tournaments in Canada. The first game Chessbase has for him is in 1983. In the Chess Assistant Hugebase the, apparently, same player has games going back to 1974. He did, or does, have daughter from his first marriage in Hungary and perhaps grandchildren and other relatives, so travel to Hungary for tournaments is a possibility. I’ll do some more digging. If it is two different players, some attributions will need to be corrected. Maybe it’s his grandson in Hungary?
ICCF does have a Sarosy and not a Sarosi. Looks like two different people. I don’t have the Chessbase Correspondence base. If someone here does, please check it under both spellings. So, there are indeed two players. Are they related in any way?
From the Canadian Chess Hall of Fame site.
Correspondence International Master 1988
Canadian Correspondence Champion (1967, 1972, 1981)
1st place, Master Candidates Tournament, Diosgyor, Hungary 1943
Won Chess Club tournaments in different cities in Hungary: Nagykanizsa (Club Ch) 1929; Pecs (Club Ch) 1932; Budapest 1934
Invented the move order: 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. d4
Reached age 100 in 2006 while still playing chess by e-mail; in 2007, became longest lived Canadian chess player ever
Canadian Chess Hall of Fame 2006
Game with Zoltan Sarosy’s favourite move:
Leon Kempen - Zoltan Sarosy
Pacific Area Team Tournament 4, Australia - Canada, Board 3, Correspondence, ICCF, 1999
Contributors: J. Ken MacDonald; family of Frank Anderson, John Donaldson, Zoltan Sarosy (photo).