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
d5a2
d5b3
d5c4
d5a8
d5b7
d5c6
d5g2
d5f3
d5e4
d5g8
d5f7
d5e6
d5d1
d5d2
d5d3
d5d4
d5e5
d5d8
d5d7
d5d6
c5c4
b5b4
a7a5
a7a6
c7c6
h7h6
h7g7

## Board State Fen
4R3/p1p4k/6N1/1ppq1p2/5P2/8/PP4RP/7K b - - 13 43
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
d5a2
d5b3
d5c4
d5a8
d5b7
d5c6
d5g2
d5f3
d5e4
d5g8
d5f7
d5e6
d5d1
d5d2
d5d3
d5d4
d5e5
d5d8
d5d7
d5d6
c5c4
b5b4
a7a5
a7a6
c7c6
h7h6
h7g7

## Board State Fen
4R3/p1p4k/6N1/1ppq1p2/5P2/8/PP4RP/7K b - - 13 43
assistant
d5d1