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
c1h1
c1g1
c1f1
c1e1
c1d1
c1c8
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
b2b4
b2b3
a3a4
e3f2
e3e2
e3d2
d4c2
d4c6
d4e2
d4e6
d4b3
d4b5
d4f5
e4f5
e4e5
h4h5

## Board State Fen
2r2r2/1b2k2p/p2pp1p1/1p3p2/3NPP1P/P2PKP2/1P6/1RR5 w - - 1 30
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
c1h1
c1g1
c1f1
c1e1
c1d1
c1c8
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
b2b4
b2b3
a3a4
e3f2
e3e2
e3d2
d4c2
d4c6
d4e2
d4e6
d4b3
d4b5
d4f5
e4f5
e4e5
h4h5

## Board State Fen
2r2r2/1b2k2p/p2pp1p1/1p3p2/3NPP1P/P2PKP2/1P6/1RR5 w - - 1 30
assistant
d4e2