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
a1a3
a1a2
b1a3
b1c3
b1d2
e1c1
e1d1
e1f1
g1h1
g1f1
b2b4
b2b3
c2c4
c2c3
e2d1
e2f1
e2d2
e2e4
e2e3
g2f1
g2h1
g2h3
h2h4
h2h3
d3d4
f3g5
f3d2
f3d4
f3h4
g3g4
a4a5
f4c1
f4d2
f4e3
f4h6
f4g5

## Board State Fen
r2q1rk1/pb2bppn/1pn1p2p/2ppP3/P4B2/3P1NP1/1PP1QPBP/RN2R1K1 w - - 1 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
a1a3
a1a2
b1a3
b1c3
b1d2
e1c1
e1d1
e1f1
g1h1
g1f1
b2b4
b2b3
c2c4
c2c3
e2d1
e2f1
e2d2
e2e4
e2e3
g2f1
g2h1
g2h3
h2h4
h2h3
d3d4
f3g5
f3d2
f3d4
f3h4
g3g4
a4a5
f4c1
f4d2
f4e3
f4h6
f4g5

## Board State Fen
r2q1rk1/pb2bppn/1pn1p2p/2ppP3/P4B2/3P1NP1/1PP1QPBP/RN2R1K1 w - - 1 12
assistant
b1a3