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
d3e4
d3e3
d3e2
d3d4
d3d2
c4b4
c4c1
c4c2
c4c3
c4h4
c4g4
c4f4
c4e4
c4d4
c4c5
c6c5

## Board State Fen
8/8/1Rp5/1p6/1Pr5/1K1k4/8/8 b - - 15 113
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
d3e4
d3e3
d3e2
d3d4
d3d2
c4b4
c4c1
c4c2
c4c3
c4h4
c4g4
c4f4
c4e4
c4d4
c4c5
c6c5

## Board State Fen
8/8/1Rp5/1p6/1Pr5/1K1k4/8/8 b - - 15 113
assistant
d3d4