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
a5b3
a5b7
a5c4
a5c6
e5f6
e5e6
e5d6
a6c4
a6b5
a6c8
a6b7
b6b5
h6h5
d7b7
d7c7
d7d2
d7d3
d7d4
d7d5
d7d6
d7e7
d7d8
f7f5
f7f6

## Board State Fen
8/p2r1p2/bp5p/n1p1k1p1/2P3P1/P1P1P3/1R1NBP1P/4K3 b - - 3 28
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
a5b3
a5b7
a5c4
a5c6
e5f6
e5e6
e5d6
a6c4
a6b5
a6c8
a6b7
b6b5
h6h5
d7b7
d7c7
d7d2
d7d3
d7d4
d7d5
d7d6
d7e7
d7d8
f7f5
f7f6

## Board State Fen
8/p2r1p2/bp5p/n1p1k1p1/2P3P1/P1P1P3/1R1NBP1P/4K3 b - - 3 28
assistant
d7d8