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
a5a4
c6c5
d6d5
f6e4
f6g4
f6d5
f6d7
f6h5
g7g5
g7g6
h7h5
h7h6
a8a6
a8a7
a8b8
c8a6
c8b7
c8h3
c8g4
c8f5
c8e6
c8d7
e8d8
e8e4
e8e5
e8e6
e8e7
e8f8
g8h8
g8f8

## Board State Fen
r1b1r1k1/2p2ppp/2pp1n2/p7/4P3/3B2P1/PPPN1PP1/4RRK1 b - - 0 14
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
a5a4
c6c5
d6d5
f6e4
f6g4
f6d5
f6d7
f6h5
g7g5
g7g6
h7h5
h7h6
a8a6
a8a7
a8b8
c8a6
c8b7
c8h3
c8g4
c8f5
c8e6
c8d7
e8d8
e8e4
e8e5
e8e6
e8e7
e8f8
g8h8
g8f8

## Board State Fen
r1b1r1k1/2p2ppp/2pp1n2/p7/4P3/3B2P1/PPPN1PP1/4RRK1 b - - 0 14
assistant
a5a4