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
b5b4
c5c4
f5f4
a6a5
c6b6
c6d6
c6c8
c6c7
e6d4
e6f4
e6c7
e6g5
e6g7
g6g5
h7h5
h7h6
d8a8
d8b8
d8c8
d8d3
d8d4
d8d5
d8d6
d8d7
d8e8
f8g8
f8g7
f8f7
f8e8
f8e7

## Board State Fen
3r1k2/7p/p1r1n1p1/1pp2p2/8/1PPPRP1P/1P3PN1/R4K2 b - - 3 33
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
b5b4
c5c4
f5f4
a6a5
c6b6
c6d6
c6c8
c6c7
e6d4
e6f4
e6c7
e6g5
e6g7
g6g5
h7h5
h7h6
d8a8
d8b8
d8c8
d8d3
d8d4
d8d5
d8d6
d8d7
d8e8
f8g8
f8g7
f8f7
f8e8
f8e7

## Board State Fen
3r1k2/7p/p1r1n1p1/1pp2p2/8/1PPPRP1P/1P3PN1/R4K2 b - - 3 33
assistant
b5b4