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
f5b1
f5c2
f5d3
f5e4
f5c8
f5d7
f5e6
f5h3
f5g4
f5g6
d5c4
a6a5
a4b3
c6b5
c6b7
c6e8
c6d7
c6b6
c6c4
c6c5
c6h6
c6g6
c6f6
c6e6
c6d6
f7f6
g7g5
g7g6
h7h5
h7h6
a8a7
a8f8
a8e8
a8d8
a8c8
a8b8
g8h8
g8f8

## Board State Fen
r5k1/2p2ppp/p1q5/3p1b2/p1PP4/NP6/P2Q1PPP/4R1K1 b - c3 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
f5b1
f5c2
f5d3
f5e4
f5c8
f5d7
f5e6
f5h3
f5g4
f5g6
d5c4
a6a5
a4b3
c6b5
c6b7
c6e8
c6d7
c6b6
c6c4
c6c5
c6h6
c6g6
c6f6
c6e6
c6d6
f7f6
g7g5
g7g6
h7h5
h7h6
a8a7
a8f8
a8e8
a8d8
a8c8
a8b8
g8h8
g8f8

## Board State Fen
r5k1/2p2ppp/p1q5/3p1b2/p1PP4/NP6/P2Q1PPP/4R1K1 b - c3 0 17
assistant
a4b3