Given the available moves based on the current board state in FEN notation, think carefully about which move would be best, then make that move. Be sure to note your color indicated in the FEN notation before deciding.
## Available Moves
e4b1
e4c2
e4d3
e4a8
e4b7
e4c6
e4d5
h6h7
h6g7

## Board State Fen
8/8/7k/5p1p/4bN1P/5p2/5K2/8 b - - 3 53
system
You are a chess playing AI.
user
Given the available moves based on the current board state in FEN notation, think carefully about which move would be best, then make that move. Be sure to note your color indicated in the FEN notation before deciding.
## Available Moves
e4b1
e4c2
e4d3
e4a8
e4b7
e4c6
e4d5
h6h7
h6g7

## Board State Fen
8/8/7k/5p1p/4bN1P/5p2/5K2/8 b - - 3 53
assistant
e4b7