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
a1e1
a1d1
a1c1
a1b1
f1b1
f1c1
f1d1
f1e1
g1h1
a2a4
a2a3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
b3b4
c4b2
c4b6
c4d2
c4d6
c4a3
c4a5
c4e3
c4e5

## Board State Fen
2r1k2r/4bp1p/p3pp2/8/2N5/1P6/P4PPP/R4RK1 w k - 0 19
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
a1e1
a1d1
a1c1
a1b1
f1b1
f1c1
f1d1
f1e1
g1h1
a2a4
a2a3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
b3b4
c4b2
c4b6
c4d2
c4d6
c4a3
c4a5
c4e3
c4e5

## Board State Fen
2r1k2r/4bp1p/p3pp2/8/2N5/1P6/P4PPP/R4RK1 w k - 0 19
assistant
f1d1