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
b4a3
b4b3
f4c1
f4d2
f4e3
f4b8
f4c7
f4d6
f4e5
f4h2
f4g3
f4g5
a5c7
a5b6
a5a3
a5a4
a5c5
a5b5
a5a6
c6b8
c6d4
c6e5
c6e7
e6e5
h6h5
a7a6
d7c8
d7e8
f7f5
f7f6
g7g5
g7g6
d8a8
d8b8
d8c8
d8e8
f8e8
g8h8
g8h7

## Board State Fen
3r1rk1/p2b1pp1/2n1p2p/q1R5/1p1PNb2/P2B1N2/1P2QPPP/3R2K1 b - - 1 20
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
b4a3
b4b3
f4c1
f4d2
f4e3
f4b8
f4c7
f4d6
f4e5
f4h2
f4g3
f4g5
a5c7
a5b6
a5a3
a5a4
a5c5
a5b5
a5a6
c6b8
c6d4
c6e5
c6e7
e6e5
h6h5
a7a6
d7c8
d7e8
f7f5
f7f6
g7g5
g7g6
d8a8
d8b8
d8c8
d8e8
f8e8
g8h8
g8h7

## Board State Fen
3r1rk1/p2b1pp1/2n1p2p/q1R5/1p1PNb2/P2B1N2/1P2QPPP/3R2K1 b - - 1 20
assistant
a5b6