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
c4a4
c4b4
c4c1
c4c2
c4c3
c4h4
c4g4
c4f4
c4e4
c4d4
c4c8
c4c7
c4c6
c4c5
a6a5
g7h8
g7h7
g7h6
g7g8
g7g6
g7f8
g7f6
d8c6
d8e6
d8b7
d8f7

## Board State Fen
3n4/3P2k1/p3P3/8/2r5/8/P5K1/4R3 b - - 0 48
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
c4a4
c4b4
c4c1
c4c2
c4c3
c4h4
c4g4
c4f4
c4e4
c4d4
c4c8
c4c7
c4c6
c4c5
a6a5
g7h8
g7h7
g7h6
g7g8
g7g6
g7f8
g7f6
d8c6
d8e6
d8b7
d8f7

## Board State Fen
3n4/3P2k1/p3P3/8/2r5/8/P5K1/4R3 b - - 0 48
assistant
d8e6