[FEN "rn2r1k1/pp2qpp1/3b1nbp/2pp4/6PP/1B1PBP2/PPPQNK2/RN2R3 b KQkq - 0 14"]
14... c4 15. dxc4 Nxg4+
I set up the above position in Stockfish and the initial analysis was that
c4 was the best move. After some time it changed its evaluation and gave
I am trying to understand the idea behind the continuation
C4, It looks like a pawn loss and a waste of tempo, If the plan is to sacrifice the Knight, why not just sacrifice it at move 14?(move 1 in the above position?) instead of wasting the pawn then "sac" the Knight?