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
b4c3
b4b3
c5d4
c5c4
f6e4
f6e8
f6g4
f6d5
f6d7
f6h5
g6g5
a7a5
a7a6
b7a6
b7a8
b7g2
b7f3
b7e4
b7d5
b7c6
b7c8
b7b5
b7b6
b7d7
b7c7
b7b8
e7e5
e7e6
h7h5
h7h6
d8a8
d8b8
d8c8
d8d4
d8d5
d8d6
d8d7
d8e8
f8e8
g8h8
g8g7

## Board State Fen
3r1rk1/pq2pp1p/5np1/2p5/1p1P4/2P4P/PP3PP1/R1BQR1K1 b - - 0 19
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
b4c3
b4b3
c5d4
c5c4
f6e4
f6e8
f6g4
f6d5
f6d7
f6h5
g6g5
a7a5
a7a6
b7a6
b7a8
b7g2
b7f3
b7e4
b7d5
b7c6
b7c8
b7b5
b7b6
b7d7
b7c7
b7b8
e7e5
e7e6
h7h5
h7h6
d8a8
d8b8
d8c8
d8d4
d8d5
d8d6
d8d7
d8e8
f8e8
g8h8
g8g7

## Board State Fen
3r1rk1/pq2pp1p/5np1/2p5/1p1P4/2P4P/PP3PP1/R1BQR1K1 b - - 0 19
assistant
d8d7