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
a1h1
a1g1
a1f1
a1e1
a1d1
a1c1
a1b1
a1a4
a1a3
a1a2
f2g2
f2g1
f2f1
f2e2
f2e1
h2h4
h2h3
c3c4
e3e4
f3f4
g3g4
d4c5
d4f6
d4e5
b6a6
b6b1
b6b2
b6b3
b6b4
b6b5
b6c6
b6b7

## Board State Fen
4r1k1/1pr3pp/pRb2p2/P2p4/3B4/2P1PPP1/5K1P/R7 w - - 1 27
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
a1h1
a1g1
a1f1
a1e1
a1d1
a1c1
a1b1
a1a4
a1a3
a1a2
f2g2
f2g1
f2f1
f2e2
f2e1
h2h4
h2h3
c3c4
e3e4
f3f4
g3g4
d4c5
d4f6
d4e5
b6a6
b6b1
b6b2
b6b3
b6b4
b6b5
b6c6
b6b7

## Board State Fen
4r1k1/1pr3pp/pRb2p2/P2p4/3B4/2P1PPP1/5K1P/R7 w - - 1 27
assistant
g3g4