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
d1c2
d1e2
d1a1
d1b1
d1c1
d1d3
d1d2
e1e2
e1d2
f1a6
f1b5
f1c4
f1d3
f1e2
h1g1
a2a4
a2a3
h2h4
h2h3
b3a3
b3b1
b3b2
b3b6
b3b5
b3b4
c3c4
e3e4
f3e5
f3g1
f3g5
f3d2
f3h4
g3d6
g3e5
g3f4
g3h4
d4c5

## Board State Fen
r2q1rk1/pp3ppp/1n1b4/2pp1b2/3P4/1RP1PNB1/P4PPP/3QKB1R w K c6 0 15
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
d1c2
d1e2
d1a1
d1b1
d1c1
d1d3
d1d2
e1e2
e1d2
f1a6
f1b5
f1c4
f1d3
f1e2
h1g1
a2a4
a2a3
h2h4
h2h3
b3a3
b3b1
b3b2
b3b6
b3b5
b3b4
c3c4
e3e4
f3e5
f3g1
f3g5
f3d2
f3h4
g3d6
g3e5
g3f4
g3h4
d4c5

## Board State Fen
r2q1rk1/pp3ppp/1n1b4/2pp1b2/3P4/1RP1PNB1/P4PPP/3QKB1R w K c6 0 15
assistant
d4c5