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
c3a1
c3b2
c3a5
c3b4
c3e1
c3d2
c3e5
c3d4
d3e2
d3d2
d3c2
f3f4
e4a8
e4b7
e4c6
e4d5
e4h7
e4g6
e4f5

## Board State Fen
8/5n2/1p2pk1p/2b1p1pP/2P1B1P1/2BK1P2/8/8 w - - 5 51
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
c3a1
c3b2
c3a5
c3b4
c3e1
c3d2
c3e5
c3d4
d3e2
d3d2
d3c2
f3f4
e4a8
e4b7
e4c6
e4d5
e4h7
e4g6
e4f5

## Board State Fen
8/5n2/1p2pk1p/2b1p1pP/2P1B1P1/2BK1P2/8/8 w - - 5 51
assistant
e4c6