King's Indian Attack vs Sicilian setup is variation 6 of 6 in the Réti Opening and King's Indian Attack course, a intermediate opening course for White (ECO A04). It runs 21 moves and begins 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 …. Black plays ...c5, ...Nc6, ...g6 and ...e6. White builds the KIA with e4, Re1 and c3, then breaks with d4 and gains space with e5. In the lesson every move is explained on a board and then drilled; it is free.
Move by move
1. Nf3 – Develops and keeps options open.
1... c5 – Black plays a Sicilian-style setup.
2. g3 – Prepares Bg2 and the KIA.
2... Nc6 – Develops and controls d4.
3. Bg2 – The bishop takes the long diagonal.
3... g6 – Black fianchettoes too.
4. O-O – White castles.
4... Bg7 – Completes Black's fianchetto.
5. d3 – Prepares e4 and keeps the centre solid.
5... e6 – Prepares ...Nge7 and ...d5, like a closed Sicilian.
6. e4 – Takes space in the centre.
6... Nge7 – Develops so the f-pawn stays free and ...d5 is supported.
7. Re1 – Supports e4 and prepares e5 or a d4 break.
7... O-O – Black castles.
8. c3 – Prepares d4 to fight for the centre.
8... d6 – Prepares ...e5 and controls e5.
The lesson goes on for 5 more moves, each with its explanation.
chessGM