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
a1c1
a1b1
a4b6
a4c3
a4c5
g5c1
g5d2
g5e3
g5f4
g5f6
g5h4
g5h6
d3a6
d3b5
d3c4
d3e2
d3h7
d3g6
d3f5
d3e4
g2g4
g2g3
d1h5
d1g4
d1f3
d1e2
d1b1
d1c1
d1e1
d1d2
h2h4
h2h3
f2f4
f2f3
c2c4
c2c3
b2b3
a2a3
g1h1
f1e1

## Board State Fen
r1bq1rk1/p4pp1/2p2n1p/3p2B1/Nb6/3B4/PPP2PPP/R2Q1RK1 w - - 0 12
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
a1c1
a1b1
a4b6
a4c3
a4c5
g5c1
g5d2
g5e3
g5f4
g5f6
g5h4
g5h6
d3a6
d3b5
d3c4
d3e2
d3h7
d3g6
d3f5
d3e4
g2g4
g2g3
d1h5
d1g4
d1f3
d1e2
d1b1
d1c1
d1e1
d1d2
h2h4
h2h3
f2f4
f2f3
c2c4
c2c3
b2b3
a2a3
g1h1
f1e1

## Board State Fen
r1bq1rk1/p4pp1/2p2n1p/3p2B1/Nb6/3B4/PPP2PPP/R2Q1RK1 w - - 0 12
assistant
g5h4