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
a1a3
a1a2
f1a6
f1b5
f1c4
f1d3
f1e2
f1h3
f1g2
b2b4
b2b3
f2f4
f2f3
h2h4
h2h3
c3b1
c3b5
c3d1
c3d5
c3a2
c3e2
c3e4
g3g4
a4a5
d4d5

## Board State Fen
r5k1/1bpp1p1p/pp1b4/6p1/P2P4/2N3P1/1PP2P1P/R4BK1 w - - 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
a1a3
a1a2
f1a6
f1b5
f1c4
f1d3
f1e2
f1h3
f1g2
b2b4
b2b3
f2f4
f2f3
h2h4
h2h3
c3b1
c3b5
c3d1
c3d5
c3a2
c3e2
c3e4
g3g4
a4a5
d4d5

## Board State Fen
r5k1/1bpp1p1p/pp1b4/6p1/P2P4/2N3P1/1PP2P1P/R4BK1 w - - 0 19
assistant
f1g2