[%c_effect g4;square;g4;type;Interesting;persistent;true] A fresh idea, played only once before, but by a renowned theoretician.
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. f2f4 This old move still has some venom, it seems. 6... e7e5  7. d4f3  7... b8d7  8. a2a4  8... d8c7 Preventing the development of the bishop on c4.