1. g1f3  1... d7d5  2. e2e3  2... g8f6  3. c2c4  3... e7e6  4. b2b3  4... f8d6  5. c1b2 The Reti is a chameleon opening and as such, the arising positions often represent familiar defenses with reversed colors and an extra tempo for White. 5... e8g8  6. b1c3  6... f8e8 