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
d1c2
d1h5
d1g4
d1f3
d1e2
d1b1
d1c1
d1e1
d1d4
d1d3
d1d2
f1e1
g1h1
a2a4
a2a3
f2f4
f2f3
g2f3
g2h1
g2h3
h2h4
h2h3
b3b4
g3g4

## Board State Fen
r1bq2k1/pp3p1p/6p1/4r3/3pP3/1P4P1/P4PBP/R2Q1RK1 w - - 0 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
d1c2
d1h5
d1g4
d1f3
d1e2
d1b1
d1c1
d1e1
d1d4
d1d3
d1d2
f1e1
g1h1
a2a4
a2a3
f2f4
f2f3
g2f3
g2h1
g2h3
h2h4
h2h3
b3b4
g3g4

## Board State Fen
r1bq2k1/pp3p1p/6p1/4r3/3pP3/1P4P1/P4PBP/R2Q1RK1 w - - 0 17
assistant
h2h4