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
b1a1
b1c1
d1c1
d1e1
f1d3
f1e2
g1h2
g1h1
a2a4
a2a3
b2b4
b2b3
d2c1
d2e1
d2h6
d2g5
d2f4
d2e3
f2f4
f2f3
g2g4
g2g3
c3b5
c3d5
c3a4
c3e2
h3h4
e4e5

## Board State Fen
2r2rk1/1p3pbp/p1npp1p1/2n5/2P1P3/2N4P/PP1B1PP1/1R1R1BK1 w - - 2 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
b1a1
b1c1
d1c1
d1e1
f1d3
f1e2
g1h2
g1h1
a2a4
a2a3
b2b4
b2b3
d2c1
d2e1
d2h6
d2g5
d2f4
d2e3
f2f4
f2f3
g2g4
g2g3
c3b5
c3d5
c3a4
c3e2
h3h4
e4e5

## Board State Fen
2r2rk1/1p3pbp/p1npp1p1/2n5/2P1P3/2N4P/PP1B1PP1/1R1R1BK1 w - - 2 20
assistant
f2f3