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
b6a4
b6a8
b6c4
b6c8
b6d7
d6a3
d6b4
d6c5
d6h2
d6g3
d6f4
d6e5
d6e7
g6h5
g6g5
a7a5
a7a6
c7c5
c7c6
f7f5
f7f6
e8a8
e8b8
e8c8
e8d8
e8e3
e8e4
e8e5
e8e6
e8e7
g8h8
g8h7
g8g7

## Board State Fen
4rrk1/ppp2p2/1n1b2p1/3p3P/3P4/2P1B2N/P1P2P1P/1R2R1K1 b - - 0 18
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
b6a4
b6a8
b6c4
b6c8
b6d7
d6a3
d6b4
d6c5
d6h2
d6g3
d6f4
d6e5
d6e7
g6h5
g6g5
a7a5
a7a6
c7c5
c7c6
f7f5
f7f6
e8a8
e8b8
e8c8
e8d8
e8e3
e8e4
e8e5
e8e6
e8e7
g8h8
g8h7
g8g7

## Board State Fen
4rrk1/ppp2p2/1n1b2p1/3p3P/3P4/2P1B2N/P1P2P1P/1R2R1K1 b - - 0 18
assistant
g6h5