[%c_effect e4;square;e4;type;Mistake;persistent;true]
1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. e2e3  3... c7c6  4. h2h3  4... c8f5  5. f3h4  5... f5d7 A curious square for the bishop. 6. f1d3  6... c6c5  7. c2c3 [%c_effect c3;square;c3;type;Inaccuracy;persistent;true] 7... b8c6  8. h4f3  8... d8c7  9. b1d2  9... e7e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] A thematic break that gives Black an excellent game. 10. e3e4 [%c_effect e4;square;e4;type;Inaccuracy;persistent;true] This makes the situation worse. White should accept a slightly inferior position after 10... c5d4 [%c_effect d4;square;d4;type;Inaccuracy;persistent;true] 11. c3d4  11... c6b4  12. d3b1 [%c_effect b1;square;b1;type;Mistake;persistent;true] This allows the same idea with ...Bb5.