A modern move, played several times by elite players. The idea is quite concrete: Black's queen heads to an exotic location on h5, from where it will support the d7-d5 advance.
1. c2c4  1... c7c5  2. g1f3  2... g8f6  3. b1c3  3... b8c6  4. d2d4  4... c5d4  5. f3d4  5... e7e6  6. a2a3 This is the second most popular move in this well-known variant of the English Opening. 6.g3 is the most played, but White has several other tries. 6... f8e7  7. e2e4  7... e8g8  8. d4f3 