411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...c6/2. d3/2...d5/3. Nf3/3...dxe4/4. Ng5/4...exd3/5. Bxd3/5...h6/6. Nxf7
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Caro-Kann Defence, Endgame Offer rd nd bd qd kd bd nd rd pd pd pd nl pd pd pd bl pl pl pl pl pl pl rl nl bl ql kl rl
6. Nf7! - Caro-Kann Defence, Endgame Offer
Black's best move now is to lose their queen for a bishop and knight with 6...Qxd3 7. Qxd3 Kxf7 and White will be up 3 points in material. If Black captures White's knight with 6...Kxf7, White has a forced mate in 6 moves beginning with 7. Qh5+. In any other case, White will win Black's rook and have both bishops and queen lined up on the diagonals to potentially checkmate (such as 6...Qb6 7. Nxh8 Nf6 8. Bg6#).
Theory table
.
1.e4 c6 2.d3 d5 3. Nf3 dxe4 4. Ng5 dxe3 5. Bxe3 h6 6. Nf7
..d5
..e5
..g6
..d6
References