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
d1a1
d1b1
d1c1
d1d5
d1d4
d1d3
d1d2
e1d2
h1g1
b2b4
b2b3
e2e4
e2e3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
a3a4
c4a2
c4b3
c4a6
c4b5
c4d3
c4d5
c4a4
c4b4
c4c1
c4c2
c4c3
c4h4
c4g4
c4f4
c4e4
c4d4
c4c7
c4c6
c4c5

## Board State Fen
r4rk1/pbpq1p2/1p3p1p/3p4/2Q5/P7/1P2PPPP/3RKB1R w K - 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
d1a1
d1b1
d1c1
d1d5
d1d4
d1d3
d1d2
e1d2
h1g1
b2b4
b2b3
e2e4
e2e3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
a3a4
c4a2
c4b3
c4a6
c4b5
c4d3
c4d5
c4a4
c4b4
c4c1
c4c2
c4c3
c4h4
c4g4
c4f4
c4e4
c4d4
c4c7
c4c6
c4c5

## Board State Fen
r4rk1/pbpq1p2/1p3p1p/3p4/2Q5/P7/1P2PPPP/3RKB1R w K - 0 15
assistant
c4f4