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
f5f2
f5f3
f5f4
f5h5
f5g5
b6b5
c6c5
d6a3
d6b4
d6c5
d6e7
e6d4
e6d8
e6f4
e6c5
e6g5
f6d8
f6e7
f6h4
f6g5
f6h6
f6g6
f6f7
a7a5
a7a6
g7g5
g7g6
h7h5
h7h6
f8a8
f8b8
f8c8
f8d8
f8e8
f8f7
g8h8
g8f7

## Board State Fen
5rk1/p1p3pp/1ppbnq2/4pr2/2P1N1Q1/3PB1P1/P1P2P1P/1R3RK1 b - - 9 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
f5f2
f5f3
f5f4
f5h5
f5g5
b6b5
c6c5
d6a3
d6b4
d6c5
d6e7
e6d4
e6d8
e6f4
e6c5
e6g5
f6d8
f6e7
f6h4
f6g5
f6h6
f6g6
f6f7
a7a5
a7a6
g7g5
g7g6
h7h5
h7h6
f8a8
f8b8
f8c8
f8d8
f8e8
f8f7
g8h8
g8f7

## Board State Fen
5rk1/p1p3pp/1ppbnq2/4pr2/2P1N1Q1/3PB1P1/P1P2P1P/1R3RK1 b - - 9 18
assistant
f6f7