Another Mate in 5

Perhaps it would be better if you learnt the conventions of chess before "correcting" others. White plays up the board (standard convention), therefore axb3 is nonsense. Didn't you see the White pawn move to f4 on move 1 or did you just rush to the final position with no thought at all?

Cute puzzle, but I can't help but wonder if it could be done faster? I mean the basic idea of putting the knight on b3 to checkmate was pretty obvious (Black cannot move any piece other than the bishop as long as the White king stays in place, and can't use the bishop to drive away the king or guard the mating square as it's the wrong colour) but can it be placed there with fewer moves?

EDIT: Oh, I see, Black's plan is to use Bc3 to blockade the knight, and since knights can't lose a tempo the pawn move is necessary to put Black in zugzwang...and it seems there's no way to do so in fewer than 5 moves. Although actually another possibility that comes to mind is 1. Ng4 Bd4 followed by a pawn move to lose tempo, then moving the knight to b3 via e3/e5-c4-a5/d2-b3; but that needs six moves.

need reviewing

Nice puzzle. I've enjoyed that.

 Not wishing to beat a dead horse but I think you owe the original poster at least an acknowledgement that you erred.

That was beautiful.

Boy678 is correct. In EnglandUnitedStates chess the black pawn can move both forward and backward. I thought everyone knew that. Oh, sorry is the horse dead?

Not only that but we also only use one pawn each! 

Obviously it is after axb3.

With White's first move (f4), that should make it clear that the black pawn is on the opposite side of the board and thus cannot capture the knight on b3. Maybe I should have put the coordinates on the board, but I thought it would be clear; sorry for the inconvenience guys.

 And it was. Your puzzle was perfectly fine. My horse liked it!

Boy678 is wrong, but perhaps Kn-f1=Q# would be better? THen again, it can easily be blocked by B-b1.

As far as I can tell, the horse is alive and kicking. Best give another couple of kicks

Lol, glad that got sorted out.

After a really bad blunder a horse loses a chess game and walks into a bar. The bartender says "Why the long face?"

Heh... I got one for the bishop that won on the blunder:

As the winning bishop goes to a bar to celebrate, a drunk sailor stumbles out and says to the priest "I'm Jesus Christ."

The bishop takes a long look at the sailor and says "My son, that is blasphemy. You are not the son of God." The sailor angrily shouts "I am too, and I can prove it!" Then the sailor grabs the priest and pulls him into the bar.

When the bartender sees the drunk, he says "Jesus Christ, you're back again?"

Looking for a place to play chess, a priest, minister, and a rabbi walk into a bar and the bartender says, "What is this? A joke?"

Not to mention the fact that if the board were oriented that way, the move would be hxg6, not axb3.

Well, that's a horse of a different orientation. Not that there's anything wrong with that.

Lol, nice jokes.