Chess Opening Theory/1. e4/1...c6/2. d4/2...d5/3. Nc3/3...dxe4/4. Nxe4/4...Nd7/5. Ng5

Caro-Kann Defence:Classical Variation
a b c d e f g h
8a8 black rookb8 black kingc8 black bishopd8 black queene8 black kingf8 black bishopg8 black knighth8 black rook8
7a7 black pawnb7 black pawnc7 black kingd7 black knighte7 black pawnf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black pawnd6 black kinge6 black kingf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black kingf5 black kingg5 white knighth5 black king5
4a4 black kingb4 black kingc4 black kingd4 white pawne4 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 black kinge2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 black kingc1 white bishopd1 white queene1 white kingf1 white bishopg1 white knighth1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Ng5

5.Ng5 !?

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This is an interesting move, with chances to blow Black off the Board. Even Kasparov got blown with a crushing knight sacrifice.

For the interested people, the game followed:
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1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5!? Ngf6 6.Bd3 e6 7.N1f3 h6? (this allows a crushing sacrifice) 8.Nxe6! Qe7?! 9.0-0 fxe6 10.Bg6+ Kd8 (White has a winning attack) 11.Bf4 b5 12.a4 Bb7 13.Re1 Nd5 14.Bg3 Kc8 15.axb5 cxb5 16.Qd3 Bc6 17.Bf5 exf5 18.Rxe7 Bxe7 19.c4 1–0 [1]

Theory

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5
h6?!

Ne6!

References

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  1. https://en.wikipedia.org/wiki/Deep_Blue_versus_Garry_Kasparov#Game_6_2