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
b6a4
b6c4
b6d5
b6d7
c6c5
d6a3
d6b4
d6c5
d6h2
d6g3
d6f4
d6e5
d6e7
h6h5
c7b8
c7d8
c7e7
c7d7
g7g5
g7f6
g7g6
a8a6
a8a7
a8b8
c8h3
c8g4
c8f5
c8e6
c8d7
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/1pq2pp1/1npb1B1p/p7/P1BP4/1NN4P/1PQ2PP1/4RRK1 b - - 0 18
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
b6a4
b6c4
b6d5
b6d7
c6c5
d6a3
d6b4
d6c5
d6h2
d6g3
d6f4
d6e5
d6e7
h6h5
c7b8
c7d8
c7e7
c7d7
g7g5
g7f6
g7g6
a8a6
a8a7
a8b8
c8h3
c8g4
c8f5
c8e6
c8d7
f8d8
f8e8
g8h8

## Board State Fen
r1b2rk1/1pq2pp1/1npb1B1p/p7/P1BP4/1NN4P/1PQ2PP1/4RRK1 b - - 0 18
assistant
b6c4