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
b3a4
b3e6
b3d5
b3c4
f1b1
f1c1
f1d1
f1e1
d4c6
d4e2
d4e6
d4b5
d4f3
d4f5
g2g4
g2g3
a1e1
a1d1
a1c1
a1b1
f2e1
f2e3
f2g3
a2a4
a2a3
c3b1
c3b5
c3d1
c3d5
c3a4
c3e2
g1h2
g1h1
e4d3
e4a8
e4b7
e4c6
e4d5
e4f3
e4h7
e4g6
e4f5
e4e1
e4e2
e4e3
e4g4
e4f4
h4h5

## Board State Fen
1rbq1r1k/3nbppn/p3p2p/1p2P3/3NQ2P/1BN5/PPP2BP1/R4RK1 w - - 3 20
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
b3a4
b3e6
b3d5
b3c4
f1b1
f1c1
f1d1
f1e1
d4c6
d4e2
d4e6
d4b5
d4f3
d4f5
g2g4
g2g3
a1e1
a1d1
a1c1
a1b1
f2e1
f2e3
f2g3
a2a4
a2a3
c3b1
c3b5
c3d1
c3d5
c3a4
c3e2
g1h2
g1h1
e4d3
e4a8
e4b7
e4c6
e4d5
e4f3
e4h7
e4g6
e4f5
e4e1
e4e2
e4e3
e4g4
e4f4
h4h5

## Board State Fen
1rbq1r1k/3nbppn/p3p2p/1p2P3/3NQ2P/1BN5/PPP2BP1/R4RK1 w - - 3 20
assistant
d4c6