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
c1f1
c1e1
c1d1
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
g1h2
g1h1
g1f2
g1f1
d2c4
d2b1
d2f1
g2g4
g2g3
b3a2
b3a4
b3d1
b3c2
b3g8
b3f7
b3e6
b3d5
b3c4
b3a3
b3b1
b3b2
b3d3
b3c3
b3b4
e3d4
f3e1
f3e5
f3g5
f3d4
f3h2
f3h4
h3h4
e4e5
b5b6

## Board State Fen
r6k/1pp1q1pp/3p1nn1/1P6/3pP3/1Q2PN1P/3N2P1/2R3K1 w - - 0 21
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
c1f1
c1e1
c1d1
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
g1h2
g1h1
g1f2
g1f1
d2c4
d2b1
d2f1
g2g4
g2g3
b3a2
b3a4
b3d1
b3c2
b3g8
b3f7
b3e6
b3d5
b3c4
b3a3
b3b1
b3b2
b3d3
b3c3
b3b4
e3d4
f3e1
f3e5
f3g5
f3d4
f3h2
f3h4
h3h4
e4e5
b5b6

## Board State Fen
r6k/1pp1q1pp/3p1nn1/1P6/3pP3/1Q2PN1P/3N2P1/2R3K1 w - - 0 21
assistant
e3d4