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
b7a6
b7d5
b7c6
b7c8
d4c3
d4g1
d4f2
d4e3
d4f6
d4e5
a7a5
a7a6
b6b5
d7e5
d7b8
d7f6
d7f8
g7g5
g7g6
h7h5
h7h6
a8c8
a8b8
d8c7
d8h4
d8g5
d8f6
d8e7
d8b8
d8c8
d8f8
d8e8
g8h8

## Board State Fen
r2q2k1/pb1n2pp/1p1p4/2pP4/2PbQ3/1PNB4/PB4PP/5R1K 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
b7a6
b7d5
b7c6
b7c8
d4c3
d4g1
d4f2
d4e3
d4f6
d4e5
a7a5
a7a6
b6b5
d7e5
d7b8
d7f6
d7f8
g7g5
g7g6
h7h5
h7h6
a8c8
a8b8
d8c7
d8h4
d8g5
d8f6
d8e7
d8b8
d8c8
d8f8
d8e8
g8h8

## Board State Fen
r2q2k1/pb1n2pp/1p1p4/2pP4/2PbQ3/1PNB4/PB4PP/5R1K b - - 0 19
assistant
d7f6