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
h2h4
h2h3
a2a3
a4a5
h1g2
h1g1
c4b3
c4a6
c4b5
c4f1
c4e2
c4d3
c4g8
c4f7
c4e6
c4d5
d7a7
d7b7
d7c7
d7d1
d7d2
d7d3
d7d4
d7d5
d7d6
d7h7
d7g7
d7f7
d7e7
d7d8

## Board State Fen
7k/3R4/7p/8/P1B2r2/2b1p3/P6P/7K w - - 0 39
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
h2h4
h2h3
a2a3
a4a5
h1g2
h1g1
c4b3
c4a6
c4b5
c4f1
c4e2
c4d3
c4g8
c4f7
c4e6
c4d5
d7a7
d7b7
d7c7
d7d1
d7d2
d7d3
d7d4
d7d5
d7d6
d7h7
d7g7
d7f7
d7e7
d7d8

## Board State Fen
7k/3R4/7p/8/P1B2r2/2b1p3/P6P/7K w - - 0 39
assistant
c4d3