Take your first step,
[Event ""] [White "Double Attack Explanation 1"] [Black ""] [Site ""] [Round ""] [Annotator "HobSpace"] [Result "*"] [Date ""] [PlyCount "3"] [Setup "1"] [FEN "8/1b3k2/6p1/5p1p/8/8/6PK/3R4 w - - 0 1"] {Double Attack. When one move results in attacking two or more pieces at the same time it's called Double attack. In most cases, a double attack will result in a gain in material as the other player may not be able to defend against multiple threats at the same time. In the example given below} 1. Rd7+ {it?s a double attack as the rook is attacking both the king and the bishop. Now the black king as to respond to the check which gives white the time to capture the bishop.} Kf6 2. Rxb7 *
[Event ""] [White "Position,1.."] [Black ""] [Site ""] [Round ""] [Annotator "HobSpace"] [Result "*"] [Date ""] [PlyCount "0"] [Setup "1"] [FEN "8/8/8/8/8/8/Q7/8 b - - 0 1"] *
[Event "World Championship 28th"] [White "Spassky, Boris V"] [Black "Fischer, Robert James"] [Site "Reykjavik"] [Result "1–0"] [Date "1972.08.06"] [WhiteElo "2660"] [BlackElo "2785"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Nb3 Qa3 10. Bxf6 gxf6 11. Be2 h5 12. 0-0 Nc6 13. Kh1 Bd7 14. Nb1 Qb4 15. Qe3 d5 16. exd5 Ne7 17. c4 Nf5 18. Qd3 h4 19. Bg4 Nd6 20. N1d2 f5 21. a3 Qb6 22. c5 Qb5 23. Qc3 fxg4 24. a4 h3 25. axb5 hxg2+ 26. Kxg2 Rh3 27. Qf6 Nf5 28. c6 Bc8 29. dxe6 fxe6 30. Rfe1 Be7 31. Rxe6