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
b1f1
b1e1
b1d1
b1c1
b1b4
b1b3
b1b2
g1h2
g1h1
g1f1
c2c4
c2c3
g2g4
g2g3
f3e1
f3e5
f3g5
f3d2
f3d4
f3h2
f3h4
h3h4
b5a3
b5a7
b5c3
b5c7
b5d4
b5d6

## Board State Fen
2r3k1/3n2p1/4pn1p/1N2p3/1p2P3/5N1P/2P2PP1/1R4K1 w - - 0 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
b1f1
b1e1
b1d1
b1c1
b1b4
b1b3
b1b2
g1h2
g1h1
g1f1
c2c4
c2c3
g2g4
g2g3
f3e1
f3e5
f3g5
f3d2
f3d4
f3h2
f3h4
h3h4
b5a3
b5a7
b5c3
b5c7
b5d4
b5d6

## Board State Fen
2r3k1/3n2p1/4pn1p/1N2p3/1p2P3/5N1P/2P2PP1/1R4K1 w - - 0 30
assistant
b1b4