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
b4a3
b4a5
b4e1
b4d2
b4c3
b4d6
b4c5
b4a4
b4b3
b4e4
b4d4
b4c4
b4b6
b4b5
d5e4
d5d4
a6a5
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
e6e5
b7b5
b7b6
e7c5
e7d6
e7d8
e7h4
e7g5
e7f6
e7f8
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8a7
a8b8
c8d7
e8g8
e8f8
e8d8
e8d7
h8f8
h8g8

## Board State Fen
r1b1k2r/1p2bppp/p1n1p3/3p4/1q2NB2/1N4P1/PP3PBP/2RQ1RK1 b kq - 0 13
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
b4a3
b4a5
b4e1
b4d2
b4c3
b4d6
b4c5
b4a4
b4b3
b4e4
b4d4
b4c4
b4b6
b4b5
d5e4
d5d4
a6a5
c6b8
c6d4
c6d8
c6a5
c6a7
c6e5
e6e5
b7b5
b7b6
e7c5
e7d6
e7d8
e7h4
e7g5
e7f6
e7f8
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
a8a7
a8b8
c8d7
e8g8
e8f8
e8d8
e8d7
h8f8
h8g8

## Board State Fen
r1b1k2r/1p2bppp/p1n1p3/3p4/1q2NB2/1N4P1/PP3PBP/2RQ1RK1 b kq - 0 13
assistant
d5e4