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
c1a1
c1b1
c1d1
c1c8
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
e1d1
e1f1
g1h1
g1g2
g1f2
g1f1
a2a4
a2a3
b2b4
b2b3
h2h4
h2h3
g3g4
e4b1
e4c2
e4d3
e4a8
e4b7
e4c6
e4d5
e4h1
e4g2
e4f3
e4g6
e4f5

## Board State Fen
2r2rk1/p3pp1p/1p2b1p1/8/4B3/4P1P1/PP2P2P/2R1R1K1 w - - 0 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
c1a1
c1b1
c1d1
c1c8
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
e1d1
e1f1
g1h1
g1g2
g1f2
g1f1
a2a4
a2a3
b2b4
b2b3
h2h4
h2h3
g3g4
e4b1
e4c2
e4d3
e4a8
e4b7
e4c6
e4d5
e4h1
e4g2
e4f3
e4g6
e4f5

## Board State Fen
2r2rk1/p3pp1p/1p2b1p1/8/4B3/4P1P1/PP2P2P/2R1R1K1 w - - 0 20
assistant
g1f2