24 ( +1 | -1 ) in the KID...if white captures on 7.dxe5, why isnt there many games like that, where white captures? and a lot of books dont cover anything but 7.d5... what does black do if 7.exd5, and whats blacks and whites plan? 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 0-0 6.Be3 e5 7.d5
48 ( +1 | -1 ) White does not capture (7 dxe5) because he has spent some time and trouble building up a nice pawn-center, and capturing in the center would ruin it in a single move (and release Black from his cramped position). White's main advantage here is space, and so d5 is a logical way to increase it. White should now continue to increase his space advantage on the Queenside with a4, b4 and c5 while Black will seek to threaten on the kingside by retreating his knight on f6 to e8 or d7 followed by f7-f5.
58 ( +1 | -1 ) 7. dxe5is a perfectly reasonable way to play the Saemisch, and has been played often before. The reason most people avoid it is because it basically leads to an equal position after the trade of queens (7... dxe5 8. Qxd8 Rxd8), and this generally tends towards more drawish games. However, there are still plenty of winning chances left for either side.
After 7. d5, white can play either side of the board, but in most games, play on the Queenside is rare, usually white chooses to play Qd2, 0-0-0, and push the kingside pawns with g4 and h4, etc.