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
c5a5
c5b5
c5c1
c5c2
c5c3
c5c4
c5h5
c5g5
c5f5
c5e5
c5d5
a6f1
a6e2
a6d3
a6c4
a6b5
a6c8
a6b7
e6e5
f6f5
h7h5
h7h6
g8h8
g8g7
g8f8

## Board State Fen
6k1/R4p1p/b1p1pp2/2r5/P6P/6P1/5PB1/6K1 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
c5a5
c5b5
c5c1
c5c2
c5c3
c5c4
c5h5
c5g5
c5f5
c5e5
c5d5
a6f1
a6e2
a6d3
a6c4
a6b5
a6c8
a6b7
e6e5
f6f5
h7h5
h7h6
g8h8
g8g7
g8f8

## Board State Fen
6k1/R4p1p/b1p1pp2/2r5/P6P/6P1/5PB1/6K1 b - - 0 30
assistant
c5c1