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
b4a2
b4a6
b4c2
b4d3
b4d5
a5a4
c6a4
c6b5
c6e4
c6d5
c6e8
c6d7
d6c4
d6c8
d6e4
d6e8
d6b5
d6f5
d6f7
g6g5
b7b5
b7b6
g7f6
g7h6
h7h5
h7h6
a8a6
a8a7
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
f8f5
f8f6
f8f7
f8g8
h8g8

## Board State Fen
r4r1k/1p4bp/2bn2p1/p3p3/1n2Pp2/1PN2N2/1B3PPP/3RRBK1 b - - 0 23
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
b4a2
b4a6
b4c2
b4d3
b4d5
a5a4
c6a4
c6b5
c6e4
c6d5
c6e8
c6d7
d6c4
d6c8
d6e4
d6e8
d6b5
d6f5
d6f7
g6g5
b7b5
b7b6
g7f6
g7h6
h7h5
h7h6
a8a6
a8a7
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
f8f5
f8f6
f8f7
f8g8
h8g8

## Board State Fen
r4r1k/1p4bp/2bn2p1/p3p3/1n2Pp2/1PN2N2/1B3PPP/3RRBK1 b - - 0 23
assistant
a8d8