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
h6h5
a7a5
a7a6
b7a6
b7a8
b7f3
b7e4
b7d5
b7c6
b7c8
d7c5
d7e5
d7b8
d7f6
f7f5
f7f6
g7g5
g7g6
d8a8
d8b8
d8c8
e8e7
f8g8
f8e7

## Board State Fen
3rrk2/pb1n1pp1/1p2p2p/4N3/2PP4/5PP1/P1B2KP1/3RR3 b - - 4 25
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
h6h5
a7a5
a7a6
b7a6
b7a8
b7f3
b7e4
b7d5
b7c6
b7c8
d7c5
d7e5
d7b8
d7f6
f7f5
f7f6
g7g5
g7g6
d8a8
d8b8
d8c8
e8e7
f8g8
f8e7

## Board State Fen
3rrk2/pb1n1pp1/1p2p2p/4N3/2PP4/5PP1/P1B2KP1/3RR3 b - - 4 25
assistant
d7e5