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
b4b3
c5d4
c5c4
d7a4
d7b5
d7c6
d7c8
d7h3
d7g4
d7f5
d7e6
d7e8
e7e5
e7e6
f7f5
f7f6
g7d4
g7e5
g7f6
g7h6
g7h8
h7h5
h7h6
b8a8
b8b5
b8b6
b8b7
b8c8
d8a5
d8b6
d8c7
d8c8
d8e8
f8e8
g8h8

## Board State Fen
1r1q1rk1/3bppbp/3p2p1/2pP2B1/1p1N4/3P2PP/1PPQ1PBK/R4R2 b - - 0 16
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
b4b3
c5d4
c5c4
d7a4
d7b5
d7c6
d7c8
d7h3
d7g4
d7f5
d7e6
d7e8
e7e5
e7e6
f7f5
f7f6
g7d4
g7e5
g7f6
g7h6
g7h8
h7h5
h7h6
b8a8
b8b5
b8b6
b8b7
b8c8
d8a5
d8b6
d8c7
d8c8
d8e8
f8e8
g8h8

## Board State Fen
1r1q1rk1/3bppbp/3p2p1/2pP2B1/1p1N4/3P2PP/1PPQ1PBK/R4R2 b - - 0 16
assistant
g7d4