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
b5c4
b5b4
a6a5
f6b2
f6c3
f6d4
f6e5
f6h4
f6g5
f6h8
f6g7
g6g5
d7c6
d7c8
d7h3
d7g4
d7f5
d7e6
d7e8
d7a7
d7b7
d7c7
d7d8
e7e5
e7e6
h7h5
h7h6
a8a7
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8
g8g7

## Board State Fen
r4rk1/3qpp1p/p2p1bp1/1p1N4/2P1P3/7P/PP3PP1/2RQ1RK1 b - - 1 15
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
b5c4
b5b4
a6a5
f6b2
f6c3
f6d4
f6e5
f6h4
f6g5
f6h8
f6g7
g6g5
d7c6
d7c8
d7h3
d7g4
d7f5
d7e6
d7e8
d7a7
d7b7
d7c7
d7d8
e7e5
e7e6
h7h5
h7h6
a8a7
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8
g8g7

## Board State Fen
r4rk1/3qpp1p/p2p1bp1/1p1N4/2P1P3/7P/PP3PP1/2RQ1RK1 b - - 1 15
assistant
f6g5