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
b5a4
b5b4
c5c4
a6a5
c6b4
c6d4
c6a5
c6a7
d6c7
e7d5
e7f5
e7g6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
b8a8
b8b6
b8b7
c8b7
d8a5
d8b6
d8c7
d8e8
f8e8
g8h8

## Board State Fen
1rbq1rk1/3pnppp/p1nb4/1pp1p3/P3P3/2PP1N2/1PB2PPP/RNBQR1K1 b - - 0 10
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
b5a4
b5b4
c5c4
a6a5
c6b4
c6d4
c6a5
c6a7
d6c7
e7d5
e7f5
e7g6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
b8a8
b8b6
b8b7
c8b7
d8a5
d8b6
d8c7
d8e8
f8e8
g8h8

## Board State Fen
1rbq1rk1/3pnppp/p1nb4/1pp1p3/P3P3/2PP1N2/1PB2PPP/RNBQR1K1 b - - 0 10
assistant
d6c7