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
b6b5
c6c5
e6a2
e6b3
e6c4
e6d5
e6d7
e6g4
e6f5
e6g8
e6f7
a7a5
a7a6
g7g5
g7h6
g7g6
a8b8
c8b8
c8b7
e8d8
e8e7
e8h8
e8g8
e8f8

## Board State Fen
r1k1r3/p1p3p1/1pp1b2N/4P3/5PP1/7P/PPP5/R2R2K1 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
b6b5
c6c5
e6a2
e6b3
e6c4
e6d5
e6d7
e6g4
e6f5
e6g8
e6f7
a7a5
a7a6
g7g5
g7h6
g7g6
a8b8
c8b8
c8b7
e8d8
e8e7
e8h8
e8g8
e8f8

## Board State Fen
r1k1r3/p1p3p1/1pp1b2N/4P3/5PP1/7P/PPP5/R2R2K1 b - - 0 19
assistant
g7h6