Steve Stoyko - Sunil Weeramantry [A26]
New Jersey International/Wayne, NJ USA (3) 1987
In his notes to the game for Atlantic Chess News, FM Charles Adelman writes that "in a normal King's Indian Defense...this move attacks white's center, but here it just creates a weakness." Better was 6... c6.
The typical Botvinnik Attack formation.
Rather optimistic play by Black. Better 9... c6
Otherwise the g5 advance will prove deadly.
White now threatens 20.Rd1 winning the Queen and 20.Bxf6+ Kxf6 21.Qh6+ Ng6 22.fxg6 winning a piece. Also possible was 19. Qe1!?
White also has a win by 21. Bxe7
As Adelman notes, "Black has two [tempi] to defend h7, but it simply cannot be done!"
26. Qh6 and Black can only prevent mate by sacrificing his Queen.
Game in PGN