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
a2a4
a2a3
c2d3
c2d2
c2d1
c2c1
c2b3
c2b2
c2b1
g2g3
c4c5
g4f4
g4g3
g4h4
g4g6
g4g5

## Board State Fen
6k1/pp3p2/2p3p1/4r3/2P1P1R1/2P1P3/P1K3P1/8 w - - 3 23
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
a2a4
a2a3
c2d3
c2d2
c2d1
c2c1
c2b3
c2b2
c2b1
g2g3
c4c5
g4f4
g4g3
g4h4
g4g6
g4g5

## Board State Fen
6k1/pp3p2/2p3p1/4r3/2P1P1R1/2P1P3/P1K3P1/8 w - - 3 23
assistant
g4f4