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
d3d2
g5g4
e6e5
a7a5
a7a6
e7f8
e7f7
e7f6
e7e8
e7d7
e7d6
g7g6
d8a8
d8b8
d8c8
d8d4
d8d5
d8d6
d8d7
d8h8
d8g8
d8f8
d8e8

## Board State Fen
3r4/p3k1p1/4p3/6p1/8/1P1p1P1P/P5P1/2R3K1 b - - 0 30
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
d3d2
g5g4
e6e5
a7a5
a7a6
e7f8
e7f7
e7f6
e7e8
e7d7
e7d6
g7g6
d8a8
d8b8
d8c8
d8d4
d8d5
d8d6
d8d7
d8h8
d8g8
d8f8
d8e8

## Board State Fen
3r4/p3k1p1/4p3/6p1/8/1P1p1P1P/P5P1/2R3K1 b - - 0 30
assistant
a7a5