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
e1a1
e1b1
e1c1
e1d1
e1h1
e1g1
e1f1
e2d1
e2c4
e2d3
e2f1
e2h5
e2g4
e2f3
f2g3
f2g1
f2f1
g2g4
g2g3
h2h4
h2h3
a3a4
f4f5

## Board State Fen
3r4/pp4pp/4pk2/8/2r1pP2/Pn2P3/1P2BKPP/4R3 w - - 0 26
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
e1a1
e1b1
e1c1
e1d1
e1h1
e1g1
e1f1
e2d1
e2c4
e2d3
e2f1
e2h5
e2g4
e2f3
f2g3
f2g1
f2f1
g2g4
g2g3
h2h4
h2h3
a3a4
f4f5

## Board State Fen
3r4/pp4pp/4pk2/8/2r1pP2/Pn2P3/1P2BKPP/4R3 w - - 0 26
assistant
e2c4