You noticed it which is good for a 400, but it was not so beneficial, but you spotted the idea. Not many people realize that they could do that. The thing is you lose a rook, queen, and knight for a bishop, pawn and a queen which means you lost 17 and won 13 which means you lost 5 which is not beneficial. When you do those tactics keep in mind what you lost. Seeee guys, wmath is also in chess tooooo. The universal language as they say.