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
d8a8
d8b8
d8c8
d8d3
d8d4
d8d5
d8d6
d8d7
d8h8
d8g8
d8f8
d8e8
d2e3
d2e2
d2e1
d2d3
d2d1
d2c3
d2c1
c2b2
c2c1
c2c3
f2f4
f2f3
c4c5
h2h4
h2h3
a2a3

## Board State Fen
3R4/2r2k2/5p2/p3p2p/r1P1P1p1/6P1/P1RK1P1P/8 w - - 7 57
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
d8a8
d8b8
d8c8
d8d3
d8d4
d8d5
d8d6
d8d7
d8h8
d8g8
d8f8
d8e8
d2e3
d2e2
d2e1
d2d3
d2d1
d2c3
d2c1
c2b2
c2c1
c2c3
f2f4
f2f3
c4c5
h2h4
h2h3
a2a3

## Board State Fen
3R4/2r2k2/5p2/p3p2p/r1P1P1p1/6P1/P1RK1P1P/8 w - - 7 57
assistant
c4c5