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
b6a5
b6f2
b6e3
b6d4
b6c5
b6d8
b6c7
b5a3
b5c3
b5c7
b5d4
b5d6
f7f5
f7f6
g8h8
g8h7
g8g7
g8f8
a7a5
a7a6
h6h5
e6e5
g5g4

## Board State Fen
6k1/p4p2/1bN1p2p/1n4p1/8/6P1/5PKP/1R6 b - - 13 39
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
b6a5
b6f2
b6e3
b6d4
b6c5
b6d8
b6c7
b5a3
b5c3
b5c7
b5d4
b5d6
f7f5
f7f6
g8h8
g8h7
g8g7
g8f8
a7a5
a7a6
h6h5
e6e5
g5g4

## Board State Fen
6k1/p4p2/1bN1p2p/1n4p1/8/6P1/5PKP/1R6 b - - 13 39
assistant
b5c3