Grünfeld Defense: Exchange Variation

The Grünfeld Defense: Exchange Variation (ECO code D85) is a chess opening that begins with 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3. The critical mainline where White gets a powerful pawn center. Black counterattacks with ...c5 and ...Bg7, creating pressure on the d4-pawn. One of the most theoretically important positions in chess.

The main line of the Grünfeld Defense: Exchange Variation is 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3. It is classified under ECO code D85 and falls in the Closed Game family of chess openings. From this starting position, both sides have well-established plans — White typically continues with natural developing moves while Black follows the response patterns described above.

The Grünfeld Defense: Exchange Variation is a reasonable choice for beginners who want exposure to closed game positions. The main line (1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3) is easy to remember, and the resulting middlegame patterns are well-documented. Focus on understanding the typical pawn structure rather than memorizing 15 moves of theory — engine review of your own games at chess.rodeo is more useful than theory study at the club level.

The Grünfeld Defense: Exchange Variation is classified as ECO code D85. ECO (Encyclopaedia of Chess Openings) is the standard five-letter classification system developed by Chess Informant in the 1970s — A-codes cover flank openings, B-codes 1.e4 replies that aren't 1...e5, C-codes 1.e4 e5 openings, D-codes 1.d4 d5 systems, and E-codes Indian Defenses. You can browse all openings by ECO code in our free opening database.

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