Chess Opening Theory/1. h4/1...d5

Kadas Opening rd nd bd qd kd bd nd rd pd pd pd pd pd pd pd pd pl pl pl pl pl pl pl pl rl nl bl ql kl bl nl rl A00 Kadas Opening 1...d5 Black takes the center and opens the diagonal for the light-squared bishop, preventing White's kingside rook from coming out with 2. Rh3??, to which Black will respond with Bxh3. White may try to rectify this with 3. h5?!, but this allows Black to take the full center with 3... e5! not allowing the rook to come to h4 either. Responses White may respond to the move d5 with: /2. h5/, allowing Black to take the full center with 2...e5, /2. d4/, which is more principled, and White will always play d4 in this opening so why not? or 2. Nf3, controlling the center with a knight and either going into a King's Indian-like defense, playing classically, or just transposing into the d4 line. 1. h4 d5 2 3 4 5 6 Croon's Gambit Accepted: Risky Variation h5?! e5 h6?!gxh6?! d4e4?! Bf4Nc6 e3Bf5?! ± Croon's Gambit Accepted: Knight's Acception ...... ...Nxh6 d4e4?! Bxh6 gxh6 e3 Nc6?! ± Croon's Gambit Accepted: Knight's Acception ...... ...... ...... ...... ... Bg7=Croon's Gambit Declined: Thorn Defense... ...... g6e5 d4e4 Bf4?!Bd6 Bxd6=Kadas Opening: King's Indian VariationNf3 Nc6d4 Nf6g3 Bg4Bg2 e6O-O Bd6=Kadas Opening: Center Variationd4 Nc6?!h5?! h6Nf3 Nf6Nc3 Bg4Bf4 e6=Transposition to Center VariationNf3 Nc6d4 Nf6h5?! h6 - - - -=