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
d5d4
c6c5
e6d4
e6f4
e6f8
e6c5
e6c7
e6g5
e6g7
g6g5
a7a5
a7a6
d7c8
d7e8
f7f5
f7f6
h7h5
h7h6
b8a8
b8b4
b8b5
b8b6
b8b7
b8c8
d8a5
d8b6
d8c7
d8h4
d8g5
d8f6
d8e7
d8c8
d8f8
d8e8
g8h8
g8g7
g8f8

## Board State Fen
1r1q2k1/p2b1p1p/2p1n1p1/3p4/1P5P/2PB1QP1/P2NRP2/6K1 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
d5d4
c6c5
e6d4
e6f4
e6f8
e6c5
e6c7
e6g5
e6g7
g6g5
a7a5
a7a6
d7c8
d7e8
f7f5
f7f6
h7h5
h7h6
b8a8
b8b4
b8b5
b8b6
b8b7
b8c8
d8a5
d8b6
d8c7
d8h4
d8g5
d8f6
d8e7
d8c8
d8f8
d8e8
g8h8
g8g7
g8f8

## Board State Fen
1r1q2k1/p2b1p1p/2p1n1p1/3p4/1P5P/2PB1QP1/P2NRP2/6K1 b - - 0 23
assistant
a7a5