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
e4d3
e4c6
e4d5
e4f3
e4g6
e4f5
e4e1
e4e2
e4e3
e4h4
e4g4
e4f4
e4e5
c5a3
c5b4
c5b6
c5f8
c5e7
c5d6
a7a5
a7a6
b7b5
b7b6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
c8a8
c8b8
c8c6
c8c7
d8d5
d8d6
d8d7
d8f8
d8e8
g8h8
g8f8

## Board State Fen
2rr2k1/pp3ppp/8/2b1P3/3pq3/1P1R1N2/P4PPP/3QR1K1 b - - 1 21
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
e4d3
e4c6
e4d5
e4f3
e4g6
e4f5
e4e1
e4e2
e4e3
e4h4
e4g4
e4f4
e4e5
c5a3
c5b4
c5b6
c5f8
c5e7
c5d6
a7a5
a7a6
b7b5
b7b6
f7f5
f7f6
g7g5
g7g6
h7h5
h7h6
c8a8
c8b8
c8c6
c8c7
d8d5
d8d6
d8d7
d8f8
d8e8
g8h8
g8f8

## Board State Fen
2rr2k1/pp3ppp/8/2b1P3/3pq3/1P1R1N2/P4PPP/3QR1K1 b - - 1 21
assistant
e4f5