[Event "Chess principles in the opening: Use all your pieces"] [Site "https://lichess.org/study/bXZ9oJlq/1XRhwgYd"] [Result "*"] [Variant "Standard"] [ECO "?"] [Opening "?"] [Annotator "https://lichess.org/@/realhercules"] [FEN "r1b1kb1r/pp1nqpp1/2pp1n1p/8/2BPPB2/2N2N2/PPPQ2PP/4RRK1 w - - 0 1"] [SetUp "1"] [UTCDate "2020.04.24"] [UTCTime "04:06:55"] [Source "https://lichess.org/study/bXZ9oJlq/1XRhwgYd"] [Orientation "white"] { White has seven pieces developed while Black only has three } { [%csl Gc3,Gd2,Gc4,Ge1,Gf1,Gf3,Gf4,Rf6,Re7,Rd7] } 1. e5 dxe5 2. Bxe5 Nxe5 3. Nxe5 Be6 4. Bxe6 *