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
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
c6e7
h7h5
h7h6
f7f5
f7f6
b7a6
b7c8
b7a7
b7b3
b7b4
b7b5
b7b6
b7c7
b7b8
e6e5
d7e5
d7b6
d7b8
d7f6
g6g5
d6d5
c5c4
a4b3
a8a5
a8a6
a8a7
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8
g8g7

## Board State Fen
r4rk1/1q1n1p1p/2npp1p1/2p5/p3P3/RP1PNN2/2P2PPP/2Q2RK1 b - - 1 19
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
c6b4
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
c6e7
h7h5
h7h6
f7f5
f7f6
b7a6
b7c8
b7a7
b7b3
b7b4
b7b5
b7b6
b7c7
b7b8
e6e5
d7e5
d7b6
d7b8
d7f6
g6g5
d6d5
c5c4
a4b3
a8a5
a8a6
a8a7
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8
g8g7

## Board State Fen
r4rk1/1q1n1p1p/2npp1p1/2p5/p3P3/RP1PNN2/2P2PPP/2Q2RK1 b - - 1 19
assistant
a4b3