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
d5a5
d5b5
d5c5
d5d1
d5d2
d5d3
d5d4
d5f5
d5e5
d5d8
d5d7
d5d6
a6b5
a6c8
a6b7
f8g8
f8g7
f8e8
f8e7

## Board State Fen
5k2/p4p2/b4p2/3r1P2/2p2KP1/P1R5/2P1N3/8 b - - 4 38
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
d5a5
d5b5
d5c5
d5d1
d5d2
d5d3
d5d4
d5f5
d5e5
d5d8
d5d7
d5d6
a6b5
a6c8
a6b7
f8g8
f8g7
f8e8
f8e7

## Board State Fen
5k2/p4p2/b4p2/3r1P2/2p2KP1/P1R5/2P1N3/8 b - - 4 38
assistant
a6b5