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
b5b4
c5c4
d6d5
e6b3
e6c4
e6d5
e6c8
e6d7
e6g4
e6f5
f6e4
f6e8
f6g4
f6d5
f6d7
f6h5
f6h7
e7d8
e7a7
e7b7
e7c7
e7d7
e7e8
g7h8
b8a8
b8b6
b8b7
b8e8
b8d8
b8c8
f8c8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
1r3rk1/4qpb1/3pbn1p/1pp1p1pP/4P1P1/1BPPNP2/1P6/R1BQ1RK1 b - - 1 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
b5b4
c5c4
d6d5
e6b3
e6c4
e6d5
e6c8
e6d7
e6g4
e6f5
f6e4
f6e8
f6g4
f6d5
f6d7
f6h5
f6h7
e7d8
e7a7
e7b7
e7c7
e7d7
e7e8
g7h8
b8a8
b8b6
b8b7
b8e8
b8d8
b8c8
f8c8
f8d8
f8e8
g8h8
g8h7

## Board State Fen
1r3rk1/4qpb1/3pbn1p/1pp1p1pP/4P1P1/1BPPNP2/1P6/R1BQ1RK1 b - - 1 19
assistant
e7b7