[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Hard"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "r4k1r/ppqbbp2/2pp1nn1/2PPp3/1P2P1p1/2N1B1P1/P1Q2P2/2RRNBK1 w - - 0 20"] [PlyCount "7"] [SourceVersionDate "2020.02.02"] {} 20. dxc6 (20. cxd6 Qxd6 21. dxc6 Qxc6 {also gives white a big advantage but requires great accuracy from wihte and is needlessly complicated} 22. Bb5 $1 {Count the problem solved if you found this move. Black's pieces get in a bad tangle e.g.} Qe6 23. Bxd7 Nxd7 24. Nd5 Bd8 25. Nc7 Bxc7 26. Qxc7 Nb6 { leaves black with a difficult position}) 20... bxc6 (20... Qxc6 {Best but still miserable for black} 21. cxd6 Bd8 (21... Bxd6 22. Rxd6 Qxd6 23. Bc5) 22. b5 Qc8 23. Qd2 {gives white a huge extra passed pawn and a commanding position} ) 21. cxd6 Bxd6 22. Rxd6 {The point! This wins the bishop} Qxd6 23. Bc5 *