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
c5c8
c5c7
c5c6
e6b3
e6c4
e6d5
e6c8
e6d7
e6h3
e6g4
e6f5
g6g5
a7a5
a7a6
b7b5
b7b6
f7f5
f7f6
h7h5
h7h6
a8f8
a8e8
a8d8
a8c8
a8b8
g8h8
g8g7
g8f8

## Board State Fen
r5k1/pp3p1p/4b1p1/2r5/3RP3/1P4P1/P4PBP/R5K1 b - - 0 20
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
c5c8
c5c7
c5c6
e6b3
e6c4
e6d5
e6c8
e6d7
e6h3
e6g4
e6f5
g6g5
a7a5
a7a6
b7b5
b7b6
f7f5
f7f6
h7h5
h7h6
a8f8
a8e8
a8d8
a8c8
a8b8
g8h8
g8g7
g8f8

## Board State Fen
r5k1/pp3p1p/4b1p1/2r5/3RP3/1P4P1/P4PBP/R5K1 b - - 0 20
assistant
a8c8