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
b4c6
b4d3
b4d5
b6b5
e6d5
a7a5
a7a6
f7f5
f7f6
g7g5
g7g6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
r4rk1/p4pp1/1p2p3/3QP3/1n6/5N2/PP3PPP/R4RK1 b - - 0 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
b4a2
b4a6
b4c2
b4c6
b4d3
b4d5
b6b5
e6d5
a7a5
a7a6
f7f5
f7f6
g7g5
g7g6
a8e8
a8d8
a8c8
a8b8
f8b8
f8c8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
r4rk1/p4pp1/1p2p3/3QP3/1n6/5N2/PP3PPP/R4RK1 b - - 0 19
assistant
b4d5