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Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...Nxd5

< Chess Opening Theory | 1. e4 | 1...e5 | 2. Nf3 | 2...Nc6 | 3. Bc4 | 3...Nf6 | 4. Ng5 | 4...d5 | 5. exd5
Two Knights Defence
a b c d e f g h
8a8 black rookb8 black kingc8 black bishopd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black kinge7 black kingf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black knightd6 black kinge6 black kingf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black knighte5 black pawnf5 black kingg5 white knighth5 black king5
4a4 black kingb4 black kingc4 white bishopd4 black kinge4 black kingf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 black kingg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 white pawne2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 white bishopd1 white queene1 white kingf1 black kingg1 black kingh1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

r1bqkb1r/ppp2ppp/2n5/3np1N1/2B5/8/PPPP1PPP/RNBQK2R w

Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5

Two Knights Defence

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5 ... Nxd5?!

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Immediate recapture of the pawn sometimes thought dubious, at other times theory considers it quite playable. From a positional point of view it's not considered a good move due to the creation of open lines that White can now use to aggressively attack, and for this reason it's rarely played at master level. While modern computer analysis suggests that it may be theoretically playable, few doubt that 5...Na5 is a more practical choice in an over the board game.

Theory table

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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 Nxd5
6 7 8 9
Fried Liver Attack Nxf7
Kxf7		 Qf3+
Ke6		 Nc3
Ncb4		 a3
-		 +=
Lolli Variation d4
Bb4+		 c3
Be7		 Nxf7
Kxf7		 Qf3+
Ke6		 Qe4
Rf8		 +/=

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References

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Wikipedia has related information at Two Knights Defence

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