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
b7a6
b7f3
b7e4
b7d5
b7c6
b7c8
f6e4
f6g4
f6g8
f6d5
f6h5
d8a5
d8b6
d8c7
d8c8
d7d5
d7d6
b8a6
b8c6
g7g6
c5d4
c5c4
e7d6
e7f8
e6e5
e8g8
e8f8
h8f8
h8g8
h7h5
h7h6
a7a5
a7a6
b5b4

## Board State Fen
rn1qk2r/pb1pbppp/4pn2/1pp3B1/3P4/2P2NP1/PP2PPBP/RN1Q1RK1 b kq - 2 7
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
b7a6
b7f3
b7e4
b7d5
b7c6
b7c8
f6e4
f6g4
f6g8
f6d5
f6h5
d8a5
d8b6
d8c7
d8c8
d7d5
d7d6
b8a6
b8c6
g7g6
c5d4
c5c4
e7d6
e7f8
e6e5
e8g8
e8f8
h8f8
h8g8
h7h5
h7h6
a7a5
a7a6
b5b4

## Board State Fen
rn1qk2r/pb1pbppp/4pn2/1pp3B1/3P4/2P2NP1/PP2PPBP/RN1Q1RK1 b kq - 2 7
assistant
c5d4