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
d1a1
d1b1
d1c1
d1f1
d1e1
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
g1h2
g1h1
g1f1
f2f4
f2f3
g2g4
g2g3
b3b4
h4h5
c5a5
c5b5
c5h5
c5g5
c5f5
c5e5
c5d5
c5c8
c5c7
c5c6

## Board State Fen
1r2k3/1r3pp1/4p2p/2R5/2P4P/1P6/5PP1/3R2K1 w - - 1 31
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
d1a1
d1b1
d1c1
d1f1
d1e1
d1d8
d1d7
d1d6
d1d5
d1d4
d1d3
d1d2
g1h2
g1h1
g1f1
f2f4
f2f3
g2g4
g2g3
b3b4
h4h5
c5a5
c5b5
c5h5
c5g5
c5f5
c5e5
c5d5
c5c8
c5c7
c5c6

## Board State Fen
1r2k3/1r3pp1/4p2p/2R5/2P4P/1P6/5PP1/3R2K1 w - - 1 31
assistant
g2g4