[%c_effect b7;square;b7;type;Mistake;persistent;true] In a must-win situation, White decides to take a risk.
1. d2d4  1... d7d5  2. c2c4  2... e7e6  3. b1c3  3... a7a6  4. c4d5  4... e6d5  5. c1f4  5... g8f6  6. e2e3  6... f8d6  7. d1f3 A rare move that caught the players with Black by surprise. 7.Bg5 and 7.Bxd6 are more common. 7... c8g4  8. f3g3  8... d6f4  9. g3f4  9... e8g8  10. f2f3  10... g4e6  11. f1d3 [%c_effect d3;square;d3;type;Inaccuracy;persistent;true] 11... f6h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true] 12. f4e5  12... g7g6  13. h2h4  13... c7c5 [%c_effect c5;square;c5;type;GreatFind;persistent;true] Black's counterplay comes quickly now, although the position is still balanced. 14. g2g4  14... c5d4 [%c_effect d4;square;d4;type;GreatFind;keyPressed;undefined;persistent;true] 15. e3d4 [%c_effect d4;square;d4;type;Inaccuracy;keyPressed;undefined;persistent;true] 15... f8e8 A good practical choice. 16. e1c1  16... e6g4  17. e5d5  17... g4d7 