Mieses Opening: Venezolana Variation is a chess opening with the ECO code A00, part of the Mieses Opening family. It goes 1. d3 c5 2. Nc3 Nc6 3. g3. White opens with 1. d3 (the Mieses move) and Black answers 1... c5. After 5 moves it is Black to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.