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
a7a5
a7a6
b6b5
d7b7
d7c7
d7d2
d7d3
d7d4
d7d5
d7d6
d7e7
d7d8
f7e5
f7g5
f7d6
f7d8
f7h6
g7g5
g7g6
h7h5
h7h6
e8a8
e8b8
e8c8
e8d8
e8e3
e8e4
e8e5
e8e6
e8e7
e8g8
e8f8
h8g8

## Board State Fen
4r2k/p2r1npp/1p3p2/5P2/1PQ5/2B1P1P1/3P3P/6K1 b - - 0 37
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
a7a5
a7a6
b6b5
d7b7
d7c7
d7d2
d7d3
d7d4
d7d5
d7d6
d7e7
d7d8
f7e5
f7g5
f7d6
f7d8
f7h6
g7g5
g7g6
h7h5
h7h6
e8a8
e8b8
e8c8
e8d8
e8e3
e8e4
e8e5
e8e6
e8e7
e8g8
e8f8
h8g8

## Board State Fen
4r2k/p2r1npp/1p3p2/5P2/1PQ5/2B1P1P1/3P3P/6K1 b - - 0 37
assistant
f7d6