Kaufman: Sabotage the GrünfeldA Cutting edge Repertoire for White based on 3. f3 Written by the author of the bestsellerThe Kaufman Repertoire for Black and White Top players like Anand and Aronian have used this line with success Covering all Blacks answers A perfect weapon for 1. d4 players The idea is as clever and original as its inventor. With 3. f3 (after 1. d4 Nf6 2. c4 g6 ), Alexander Alekhine designed a promising strategy to take Grnfeld players out of their comfort zone.