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
e7a3
e7b4
e7c5
e7d6
e7d8
e7h4
e7g5
e7f6
e7f8
e7d7
e7e5
e7e6
b7a6
b7c8
h6h5
g6g5
b6b5
c6b4
c6b8
c6d4
c6d8
c6a7
c6e5
a5a4
f7f5
f7f6
g7b2
g7c3
g7d4
g7e5
g7f6
g7f8
g7h8
a8a6
a8a7
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8f8
g8h8
g8h7
g8f8

## Board State Fen
r3r1k1/1bp1qpb1/1pn3pp/p2N4/2P1p3/1N2P1P1/PP3PBP/R2QR1K1 b - - 1 18
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
e7a3
e7b4
e7c5
e7d6
e7d8
e7h4
e7g5
e7f6
e7f8
e7d7
e7e5
e7e6
b7a6
b7c8
h6h5
g6g5
b6b5
c6b4
c6b8
c6d4
c6d8
c6a7
c6e5
a5a4
f7f5
f7f6
g7b2
g7c3
g7d4
g7e5
g7f6
g7f8
g7h8
a8a6
a8a7
a8d8
a8c8
a8b8
e8b8
e8c8
e8d8
e8f8
g8h8
g8h7
g8f8

## Board State Fen
r3r1k1/1bp1qpb1/1pn3pp/p2N4/2P1p3/1N2P1P1/PP3PBP/R2QR1K1 b - - 1 18
assistant
e7e5