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
a1c1
a1b1
d1a4
d1b3
d1c2
d1e2
d1b1
d1c1
d1e1
d1d4
d1d3
d1d2
f1e1
f1f2
g1h2
g1h1
g1f2
a2a4
a2a3
b2b4
b2b3
g2g4
g2g3
e3c1
e3d2
e3c5
e3d4
e3f2
f3e1
f3e5
f3g5
f3d2
f3d4
f3h2
f3h4
h3h4
f4f5
d5d6

## Board State Fen
rn1r2k1/pp1q1p1p/5bp1/2pP4/5P2/4BN1P/PP4P1/R2Q1RK1 w - - 1 17
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
a1c1
a1b1
d1a4
d1b3
d1c2
d1e2
d1b1
d1c1
d1e1
d1d4
d1d3
d1d2
f1e1
f1f2
g1h2
g1h1
g1f2
a2a4
a2a3
b2b4
b2b3
g2g4
g2g3
e3c1
e3d2
e3c5
e3d4
e3f2
f3e1
f3e5
f3g5
f3d2
f3d4
f3h2
f3h4
h3h4
f4f5
d5d6

## Board State Fen
rn1r2k1/pp1q1p1p/5bp1/2pP4/5P2/4BN1P/PP4P1/R2Q1RK1 w - - 1 17
assistant
e3c5