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
c1h6
c1g5
c1f4
c1e3
c1d2
b1a3
b1c3
b1d2
g1h1
g1f1
a2a4
a2a3
b2b4
b2b3
e2e4
e2e3
f2f4
f2f3
g2f1
g2d5
g2e4
g2f3
g2h1
g2h3
h2h4
h2h3
g3g4
d4a4
d4b4
d4c4
d4d1
d4d2
d4d3
d4h4
d4g4
d4f4
d4e4
d4d5

## Board State Fen
r1b2rk1/pp3ppp/4pb2/3n4/3R4/6P1/PP2PPBP/RNB3K1 w - - 1 13
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
c1h6
c1g5
c1f4
c1e3
c1d2
b1a3
b1c3
b1d2
g1h1
g1f1
a2a4
a2a3
b2b4
b2b3
e2e4
e2e3
f2f4
f2f3
g2f1
g2d5
g2e4
g2f3
g2h1
g2h3
h2h4
h2h3
g3g4
d4a4
d4b4
d4c4
d4d1
d4d2
d4d3
d4h4
d4g4
d4f4
d4e4
d4d5

## Board State Fen
r1b2rk1/pp3ppp/4pb2/3n4/3R4/6P1/PP2PPBP/RNB3K1 w - - 1 13
assistant
d4d1