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
c1c2
d1f1
d1e1
g1h2
g1h1
g1f1
a2a4
a2a3
d2e1
d2b2
d2c2
d2e2
d2d4
d2d3
f2f4
f2f3
g2f1
g2e4
g2f3
g2h1
c3b1
c3b5
c3a4
c3e2
c3e4
e3a7
e3b6
e3c5
e3d4
e3h6
e3g5
e3f4
g3g4
h3h4
c4c5

## Board State Fen
2r1r1k1/pp1bppbp/3p2p1/q2P4/1nP5/1PN1B1PP/P2Q1PB1/2RR2K1 w - - 1 18
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
c1c2
d1f1
d1e1
g1h2
g1h1
g1f1
a2a4
a2a3
d2e1
d2b2
d2c2
d2e2
d2d4
d2d3
f2f4
f2f3
g2f1
g2e4
g2f3
g2h1
c3b1
c3b5
c3a4
c3e2
c3e4
e3a7
e3b6
e3c5
e3d4
e3h6
e3g5
e3f4
g3g4
h3h4
c4c5

## Board State Fen
2r1r1k1/pp1bppbp/3p2p1/q2P4/1nP5/1PN1B1PP/P2Q1PB1/2RR2K1 w - - 1 18
assistant
c3b1