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. exd5/8...Nd4/9. d6/9...Qxd6

Traxler Variation rd bd kd nl pd pd pd pd pd qd nd pd bl nd pl pl pl pl bd pl pl rl nl bl ql kl rl Two Knights Defence 9... Qxd6 At this point, White often prefers to play 10. Nf7. After 10...Qc5 11. d3, Black will be able to launch a strong attack on the White king, especially with an activated bishop pair after Bg4. White's strategy involves moving their king to safety on g1 at one point and trading off material. With perfect defense, Black can regain their disadvantage in material, but there is no forced checkmate. 10. c3 can also be played first with 10...Bg4 11. Nf7 but this is less concrete and likely favors Black. Additionally, 10...Bg4 11.Qa4+ leads to a perpetual check and draw with best play (see below). 3 rd kd nl pd pd pd nd pd pd qd pd ql bl nd bd pl pl pl pl kl pl pl rl nl bl rl 10. c3 Bg4 11. Qa4+ Nd7 12. Kxf2 Qf6+   Ke1 leads to perpetual. Kg1 is very dubious after Be2. Traxler Variation