“Fight for the win.”
The Sicilian Defense is the most popular and most analyzed opening in chess. When Black plays 1...c5, they immediately create an asymmetrical position — rather than mirroring White's pawn on e4, Black fights for the d4 square from the flank.
This asymmetry is the Sicilian's defining feature. Both sides have winning chances, but with different plans: White typically attacks on the kingside, Black counterattacks in the center and on the queenside. The resulting games are sharp, dynamic, and uncompromising.
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5Position after 6 moves · Black to move
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6The most popular Sicilian variation at top level. Fischer and Kasparov's weapon of choice.
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6Black fianchettoes the bishop to g7. Leads to opposite-side castling and mutual attacks.
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2Solid and principled. This is the line in the UltimaChess trainer — avoids sharpest theory while maintaining counterplay.
1.e4 c5 2.c3White prepares d4 with c3, avoiding the main Open Sicilian. Less theoretical, leads to solid positions.
The UltimaChess opening trainer lets you watch the moves play out with a demo, then practice them yourself. Select Sicilian Defense from the opening list to start.