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
a4d1
a4c2
a4b3
a4b5
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
c6e7
f6g5
d7e8
d7d8
d7c8
f8d6
f8e7
f8h6
f8g7

## Board State Fen
5b2/3k4/2nP1p2/3B1PP1/b4B2/5K2/8/8 b - - 0 55
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
a4d1
a4c2
a4b3
a4b5
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
c6e7
f6g5
d7e8
d7d8
d7c8
f8d6
f8e7
f8h6
f8g7

## Board State Fen
5b2/3k4/2nP1p2/3B1PP1/b4B2/5K2/8/8 b - - 0 55
assistant
c6d4