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
a1b2
a1e1
a1d1
a1c1
a1b1
a1a3
a1a2
f1b1
f1c1
f1d1
f1e1
g1h1
c2b4
c2d4
c2a3
c2e1
c2e3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
a4a2
a4a3
a4b4
a4a5
c4a2
c4b3
c4e2
c4d3
b5b6
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6

## Board State Fen
1rq2r1k/n2b1p1p/3p2p1/pP1Np1b1/R1B1P3/2P5/2N2PPP/Q4RK1 w - - 3 22
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
a1b2
a1e1
a1d1
a1c1
a1b1
a1a3
a1a2
f1b1
f1c1
f1d1
f1e1
g1h1
c2b4
c2d4
c2a3
c2e1
c2e3
f2f4
f2f3
g2g4
g2g3
h2h4
h2h3
a4a2
a4a3
a4b4
a4a5
c4a2
c4b3
c4e2
c4d3
b5b6
d5c7
d5e3
d5e7
d5b4
d5b6
d5f4
d5f6

## Board State Fen
1rq2r1k/n2b1p1p/3p2p1/pP1Np1b1/R1B1P3/2P5/2N2PPP/Q4RK1 w - - 3 22
assistant
c2a3