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The hypermodern Nimzovich Defense chess opening has 8 official variations according to the ECO code classification (ECO stands for the Encyclopedia of Chess Openings). The classification code for the Nimzovich Defense opening includes the only ECO code B00 which begins with 1.e4 without 1... e5, c5, e6, d6, c6, Nf6, d5 and which is officially called the King's Pawn Opening.
ECO code B00 embraces several openings including the Nimzovich Defense (the other ones of B00 include the unknown openings like the Barnes Defense, Corn Stalk Defence, Lemming Defence, etc.). On this page you will find a full list of all 8 official variations of the Nimzovich Defense and some useful info on each variation of the Nimzovich Defense chess opening.
I. Nimzovich Defense: The Main Picture
Below is the main picture of the B00 Nimzovich Defense with the moves 1.e4 Nc6.
B00 Nimzovich Defense
1.e4 Nc6
By chess engine: White is slightly better (+0.42)
Notes: +0.42 means that the White position is better as if White won 0.42 pawns by material (+ means that White is better/- Black). Chess engine evaluates and shows whose position is better as follows: 0-0.50 position is equal; 0.51-1.00 slightly better; 1.01-1.50 better; 1.51+ much better.
Learn the Nimzovich Defense Chess Opening 1.e4 Nc6
II. Nimzovich Defense: 8 Official Variations
• B00 Nimzovich Defense
1.e4 Nc6 (see next)
• B00 Nimzovich Defense, Wheeler gambit variation
1.e4 Nc6 2.b4 Nxb4 3.c3 Nc6 4.d4
By chess engine: Black is slightly better (-0.64)
• B00 Nimzovich Defense, 2.Nf3 variation
1.e4 Nc6 2.Nf3 (see next, link below)
By chess engine: The position is equal (+0.00)
This is the most popular variation of the Nimzovich Defense.
How to Play the Most Popular Nimzovich 2.Nf3 Variation
• B00 Nimzovich Defense, Colorado counter variation
1.e4 Nc6 2.Nf3 f5 (link below)
By chess engine: White is slightly better (+0.90)
How to Play the Nimzovich Defense Colorado ... 2.Nf3 f5
• B00 Nimzovich Defense, 2.d4 variation, "the Main line"
1.e4 Nc6 2.d4 (see next, link below)
By chess engine: The position is equal (+0.07)
This is also called the Main line of the Nimzovich Defense.
How to Play the Main Line of the Nimzovich Defense ... 2.d4
• B00 Nimzovich Defense, Marshall gambit variation
1.e4 Nc6 2.d4 d5 3.exd5 Qxd5 4.Nc3
By chess engine: Black is slightly better (-0.77)
This variation runs via the Main line.
• B00 Nimzovich Defense, Bogolyubov variation
1.e4 Nc6 2.d4 d5 3.Nc3
By chess engine: The position is equal (-0.07)
This variation runs via the Main line.
• B00 Nimzovich Defense, Neo-Mongoloid defense variation
1.e4 Nc6 2.d4 f6
By chess engine: White is better (+1.36)
This variation runs via the Main line.
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