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
d1g1
d1f1
d1e1
d1d2
h1g2
h2h4
h2h3
d3a3
d3b3
d3c3
d3d2
d3d8
d3d7
d3d6
d3d5
d3d4
e3c1
e3d2
e3a7
e3b6
e3c5
e3d4
e3g5
e3f4
b4b5
a5a6

## Board State Fen
r7/1p2r1k1/2p1p2p/P3p1p1/1P2P3/3RBn2/5P1P/3R3K w - - 0 33
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
d1g1
d1f1
d1e1
d1d2
h1g2
h2h4
h2h3
d3a3
d3b3
d3c3
d3d2
d3d8
d3d7
d3d6
d3d5
d3d4
e3c1
e3d2
e3a7
e3b6
e3c5
e3d4
e3g5
e3f4
b4b5
a5a6

## Board State Fen
r7/1p2r1k1/2p1p2p/P3p1p1/1P2P3/3RBn2/5P1P/3R3K w - - 0 33
assistant
d3d7