Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...Bc5/5. Nxf7/5...Bxf2/6. Kf1/6...Qe7/7. Nxh8/7...d5/8. Kxf2

Traxler Variation rd bd kd nl pd pd pd qd pd pd nd nd pd pd bl pl pl pl pl pl kl pl pl rl nl bl ql rl Two Knights Defence 8. Kxf2 Black should now capture with 8...dxc4. A common mistake is Nxe4+ first, but after Kf1, White will be able to safely trade queens and play the game with a comfortable position. After dxc4, Black will move out all of their pieces in an attempt to checkmate. However, with their deficit in material and solid defense by White, Black cannot force a win. They do, however, have many ways to attain a perpetual check and draw. (See the example game below.) One trick White should be aware of is Black's potential knight sacrifice on e4. For example, after 9. d3 Bg4 10. Qd2, Black has 10...Nxe4!? because after 11. dxe4 Qh4+ 12. Kg1, 12...Rd8 threatens the dangerous Rd1 if the queen moves. auto kd rd nl pd pd pd qd pd pd nd nd pd pl bd pd pl pl pl pl kl pl rl nl bl ql rl 9. d3 Bg4 10. Qf1 O-O-O 11. h3 cxd3   kd rd nl pd pd pd pd pd pd pl qd pl pl ql pl pl kl rl nl nd rl 12. hxg4 Nxe4+ 13. Kg1 Ng3 14. Qe1 Ne2+ 15. Kh2 Ncd4 16. cxd3 Nxc1 17. Qe3 Qh4+ 18. Qh3 Nf3+ 19. gxf3 1/2-1/2   (Black has a perpetual check with queen) Traxler Variation