Many players could win this, but I don't know if you can :)
can i win this?

i think you are joking,i never played a game on this site,this is a game with my computer..wich i cannot solve..a game with chess titans on the level 10..i always managed to draw him with material advantage but i want a mate

Looks tough. I remember once I was in a position when I had a King+Rook against a Knight+King. I tried my best to win, but, apparently, it was impossible. Anyway, according to Chessmaster, you CAN win with checkmate

King and rook vs. king and knight is usually drawn, isn't it? I know some positions are winnable if you're the side with the rook, but a lot of those positions will be drawn according to the 50-move rule as well.
King and queen vs. king and knight is pretty much always winning for the side with the queen with very few exceptions.

guess what chess titans does
INSTEAD OF MOVING THE KNIGHT LIKE boston12 showed me at move 4..he moves the king....and it makes me fell it a s draw

i ca n t get it ..it seems a drawn..it seems to be one of the "exceptions"..as chess titans moves the king and not the horse on move 4

The position after "1. Kd6 Kc3 2. Kd5 Nc2 3. Qc4+ Kd2 4. Ke4" is completely winning. You said the computer makes a king move that baffles you, so let's explore the possibilities real quick.
If 4. ..Ke1, white just plays 5. Qxc2 and mates in 3. Simple enough.
If 4. ..Kc1, white plays 5. Kd3 and attacks the pinned knight, winning it the next turn. Mate is soon to follow.
If 4. .Kd1, the best move for white is probably 5. Kd3. A possible line after 5. Kd3 might be 5. ..Ne1+, 6. Kc3 Nc2, 7. Qf1+ Ne1, 8. Qf2! and black is forced to lose the knight. He'll be mated very soon after.
can i win this?