[Event "Blog diagrams: Mining - example 1"] [Site "https://lichess.org/study/9GFpNdwd/Ej3Madxs"] [Result "*"] [Variant "Atomic"] [ECO "?"] [Opening "?"] [Annotator "https://lichess.org/@/Illion"] [UTCDate "2017.09.08"] [UTCTime "19:26:21"] [Source "https://lichess.org/study/9GFpNdwd/Ej3Madxs"] [Orientation "white"] 1. e4 (1. e3 d5 2. Qh5 g6 3. Qe5 { Here e5 is not mined, and white wins material. } 3... Be6 4. Qxc7) 1... d5 { The squares around e4 are mined for white, namely e5, d4, d3, e3, f3, f4 and f5. These are unsafe for white. (Likewise the squares around d5 are mined for black, if we ignore the threat of ...Qxd2# lurking behind any capture of the d-pawn.) } { [%csl Re5,Rf5,Rd3,Rf4,Rf3,Re3,Rd4][%cal Rd5e4] } 2. d4 (2. Qh5 g6 3. Qe5?? { This is a mistake, as e5 is mined. Be careful putting your pieces next to each other, for if one is attacked both may be in danger. } { [%csl Re5][%cal Rd5e4] } 3... dxe4 $17) 2... Na6 3. Na3 Nb4 4. Bg5 f6 5. Nb5 Bg4 6. f3 Nxc2 7. Nxc7 a6! { b4 is not mined, and black can therefore develop with ...e6 next, with tempo (threat ...Bb4+). } { [%csl Rb6,Ra5,Ra7,Rb5][%cal Rf1a6] } (7... b5 { This move mines more squares, and notably it prevents black's own bishop from developing to b4 (or c5.) Strategically, this is less flexible than ...a6. In addition, ...e6 doesn't gain a tempo as white can ignore it. } { [%csl Rb4,Rc5,Rc4,Ra6,Ra4,Ra5,Rc6,Rb6][%cal Rf1b5] }) *