Omega-Isis Gambit

The Omega-Isis Gambit is a Dutch Defense sideline in which Black answers 2. Nf3 with 2...e5. The move offers the e-pawn in return for rapid central activity before White has finished developing. The most frequent reply is 3. dxe5, keeping the extra pawn, and 3. Nxe5 is the other common capture. The move 3. e4 transposes to the Mason Countergambit of the Latvian Gambit. The gambit is rarely played and White scores well. Engines judge Black's compensation insufficient and give White a large advantage.