Chess Opening Theory/1. d4/1...Nf6/2. c4/2...g6/3. Nc3/3...Bg7/4. e4/4...d6/5. f3/5...O-O/6. Be3/6...c5

King's Indian Defence rd nd bd qd rd kd pd pd pd pd bd pd pd nd pd pd pl pl pl nl bl pl pl pl pl pl rl ql kl bl nl rl King's Indian Defense, Sämisch Gambit 6...c5 This surprising move is one of the biggest questions posed to white's choice of moving the pawn to f3. One of the most interesting and studied gambits in all of chess, the Sämisch Gambit offers a free pawn on c5 to create wild tactical chaos against white's underdeveloped position. White has three main options, according to the masters and the lichess database: Ignore the pawn break entirely, by developing another piece (Usually Nge2), Immediately close the center, King's Indian style, with d5, Or accept the gambit with dxc5 dxc5 Bxc5 The first and second options are probably the best for people who don't want to get into an absolute wilderness of a position. While you miss out on a "free pawn", you can still go ahead with your regular knowledge of the Sämisch, with minimal danger to follow, and as such, they won't be discussed here. The third option is possibly the most dangerous for both sides. After the pawn is accepted, black immediately brings both knights (Nc6, Ne5, ...) to attack the white king. White tries to either simplify the position or force black's attack to lose its initiative. Lines get extremely complicated after Bxc5, with the engine giving mixed opinions about the gambit. Theory table 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 c5 References King's Indian Defence