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
c1h1
c1g1
c1f1
c1e1
c1d1
c1c3
c1c2
b2b4
b2b3
d2c2
d2d1
d2e2
d2d8
d2d7
d2d6
d2d5
d2d4
d2d3
f2f4
f2f3
g2h3
g2h2
g2h1
g2g1
g2f3
g2f1
a3a4
g3g4
c4b6
c4d6
c4a5
c4e3
c4e5
h4h5

## Board State Fen
3r4/p3b1p1/4kpp1/1rp1p3/2N1P2P/P5P1/1P1R1PK1/2R5 w - - 5 40
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
c1h1
c1g1
c1f1
c1e1
c1d1
c1c3
c1c2
b2b4
b2b3
d2c2
d2d1
d2e2
d2d8
d2d7
d2d6
d2d5
d2d4
d2d3
f2f4
f2f3
g2h3
g2h2
g2h1
g2g1
g2f3
g2f1
a3a4
g3g4
c4b6
c4d6
c4a5
c4e3
c4e5
h4h5

## Board State Fen
3r4/p3b1p1/4kpp1/1rp1p3/2N1P2P/P5P1/1P1R1PK1/2R5 w - - 5 40
assistant
d2d8