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
e6e5
f6d4
f6e5
f6e7
f6h4
f6g5
f6h8
f6g7
g6g5
h7h5
h7h6
c8a8
c8b8
c8c1
c8c2
c8c3
c8c4
c8c5
c8c6
c8c7
d8c7
d8e7
d8d6
d8d7
d8e8
f8e8
g8h8
g8g7

## Board State Fen
2rq1rk1/5p1p/1p2pbp1/p2p4/P2P1P2/1P1Q1NP1/5P1P/2R1R1K1 b - - 0 21
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
e6e5
f6d4
f6e5
f6e7
f6h4
f6g5
f6h8
f6g7
g6g5
h7h5
h7h6
c8a8
c8b8
c8c1
c8c2
c8c3
c8c4
c8c5
c8c6
c8c7
d8c7
d8e7
d8d6
d8d7
d8e8
f8e8
g8h8
g8g7

## Board State Fen
2rq1rk1/5p1p/1p2pbp1/p2p4/P2P1P2/1P1Q1NP1/5P1P/2R1R1K1 b - - 0 21
assistant
d8d7