Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...Nd4/6. c3/6...b5/7. Bf1/7...Nxd5/8. Ne4/8...Qh4/9. Ng3/9...Bg4/10. f3/10...e4
< Chess Opening Theory  1. e4  1...e5  2. Nf3  2...Nc6  3. Bc4  3...Nf6  4. Ng5  4...d5  5. exd5  5...Nd4  6. c3  6...b5  7. Bf1  7...Nxd5  8. Ne4  8...Qh4  9. Ng3  9...Bg4  10. f3Two Knights Defence:Fritz variation  



Position in ForsythEdwards Notation(FEN)
r3kb1r/p1p2ppp/8/1p1n4/3np1bq/2P2PN1/PP1P2PP/RNBQKB1R 
Contents
Two Knights Defence:Fritz variationEdit
9...e4Edit
Hans Berliners move. This position has been the subject of World Correspondence Championship games. Black has the advantage in development but White has extra material in many lines. It seems White's position is better but finding the correct moves is not easy and many times Black comes out better.
Theory TableEdit
For explanation of theory tables see theory table and for notation see algebraic notation.
 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5 6.Bf1 Nd4 7.c3 Nxd5 8.Ne4 Qh4 9. Ng3 Bg4 10.f3 e4
11  12  13  14  

1  cxd4 Bd6 
Bxb5+ Kd8 
OO exf3 
Rxf3 Rb8 
~  
2  ... ... 
... ... 
Kf2 f5 
Bc6 f4 
Bxd5 fxg3+ 
Ke2 exf3+ 
gxf3 Re8+ 
Kd3 Bf5+ 
Kc3 Bb4+ 
Kc4 c5 
Bxa8 Qxd4 
Kb3 Qd3+ 
Nc3 Be6+ 
Ka4 Qa6# 
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