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
a7a5
a7a6
c5d4
c5c4
e6e5
b6b5
f6e4
f6e8
f6g4
f6h5
d5e4
c7b8
c7g3
c7f4
c7e5
c7d6
c7d8
c7b7
c7c6
d7e5
d7b8
g7g5
g7g6
h7h5
h7h6
a8b8
c8a6
c8b7
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/p1qn1ppp/1p2pn2/2pp4/3PP3/2PB1NP1/PP1N1PP1/R2Q1RK1 b - - 0 11
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
a7a5
a7a6
c5d4
c5c4
e6e5
b6b5
f6e4
f6e8
f6g4
f6h5
d5e4
c7b8
c7g3
c7f4
c7e5
c7d6
c7d8
c7b7
c7c6
d7e5
d7b8
g7g5
g7g6
h7h5
h7h6
a8b8
c8a6
c8b7
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/p1qn1ppp/1p2pn2/2pp4/3PP3/2PB1NP1/PP1N1PP1/R2Q1RK1 b - - 0 11
assistant
d5e4