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
c1c3
c1c2
e1d1
e1g1
e1f1
e1e2
h1g2
h1g1
h2h4
h2h3
e3d2
e3a7
e3b6
e3c5
e3d4
e3g1
e3f2
e3h6
e3g5
e3f4
f3d1
f3e2
f3g2
f3h5
f3g4
g3g4
c4c5

## Board State Fen
6k1/4p2p/3p2p1/4b3/1rP1P3/r1n1BBP1/7P/2R1R2K w - - 0 38
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
c1c3
c1c2
e1d1
e1g1
e1f1
e1e2
h1g2
h1g1
h2h4
h2h3
e3d2
e3a7
e3b6
e3c5
e3d4
e3g1
e3f2
e3h6
e3g5
e3f4
f3d1
f3e2
f3g2
f3h5
f3g4
g3g4
c4c5

## Board State Fen
6k1/4p2p/3p2p1/4b3/1rP1P3/r1n1BBP1/7P/2R1R2K w - - 0 38
assistant
c4c5