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
a5a4
d6e7
d6d7
e6d4
e6d8
e6f4
e6f8
e6c5
e6c7
e6g5
b7b5
b7b6
f7f5
f7f6
a8a6
a8a7
a8b8
c8b8
c8c1
c8c2
c8c3
c8c4
c8c5
c8c6
c8c7
c8h8
c8g8
c8f8
c8e8
c8d8

## Board State Fen
r1r5/1p3pp1/3kn1p1/p2p2P1/3P3P/3BPK2/PP6/2R4R b - - 0 28
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
a5a4
d6e7
d6d7
e6d4
e6d8
e6f4
e6f8
e6c5
e6c7
e6g5
b7b5
b7b6
f7f5
f7f6
a8a6
a8a7
a8b8
c8b8
c8c1
c8c2
c8c3
c8c4
c8c5
c8c6
c8c7
c8h8
c8g8
c8f8
c8e8
c8d8

## Board State Fen
r1r5/1p3pp1/3kn1p1/p2p2P1/3P3P/3BPK2/PP6/2R4R b - - 0 28
assistant
c8c1