If human player can't calculate 10 moves ahead, the player might use his/her feeling based on the experience he got.
Sacrifice like 10. Nxe5
, get the initiative, open the game, and allow the d-pawn to start attacking.
The answer for the question is the sacrifice justified?
- Might be objective (what a great computer chess engine will analysis)
- Subjective - how will you use it against your current opponent
It is interesting that several chess engine gave different result for the move 10. Nxe5
- cpuchess - using
GarboChess
gave: -1.37 - lichess - using
Stockfish
gave: +1.7 - thechesswebsite - gave -1.6
Note: Unfortunately I don't have access to any professional chess engine right now.