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
b1a1
b1h1
b1g1
b1f1
b1e1
b1d1
b1c1
b1b6
b1b5
b1b4
b1b3
b1b2
g2g4
g2g3
h2h4
h2h3
c3b5
c3d1
c3d5
c3a2
c3e2
a4a5
d4e3
d4d3
e4e5

## Board State Fen
8/p2bk2p/1p4p1/2r5/P2KP3/2N5/6PP/1R6 w - - 1 31
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
b1a1
b1h1
b1g1
b1f1
b1e1
b1d1
b1c1
b1b6
b1b5
b1b4
b1b3
b1b2
g2g4
g2g3
h2h4
h2h3
c3b5
c3d1
c3d5
c3a2
c3e2
a4a5
d4e3
d4d3
e4e5

## Board State Fen
8/p2bk2p/1p4p1/2r5/P2KP3/2N5/6PP/1R6 w - - 1 31
assistant
c3d5