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
d6a3
d6b4
d6c5
f6e4
f6e8
f6g4
f6d5
f6d7
f6h5
f6h7
h6h5
c7c5
c7c6
e7d5
e7f5
e7c6
e7g6
g7g5
g7g6
b8a8
b8b3
b8b4
b8b5
b8b6
b8b7
c8a6
c8b7
c8h3
c8g4
c8f5
c8e6
c8d7
d8d7
d8e8
f8e8
g8h8
g8h7

## Board State Fen
1rbq1rk1/2p1npp1/3b1n1p/4p3/4P3/1BP2NNP/2Q2PP1/R1B1R1K1 b - - 3 18
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
d6a3
d6b4
d6c5
f6e4
f6e8
f6g4
f6d5
f6d7
f6h5
f6h7
h6h5
c7c5
c7c6
e7d5
e7f5
e7c6
e7g6
g7g5
g7g6
b8a8
b8b3
b8b4
b8b5
b8b6
b8b7
c8a6
c8b7
c8h3
c8g4
c8f5
c8e6
c8d7
d8d7
d8e8
f8e8
g8h8
g8h7

## Board State Fen
1rbq1rk1/2p1npp1/3b1n1p/4p3/4P3/1BP2NNP/2Q2PP1/R1B1R1K1 b - - 3 18
assistant
c8d7