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
b2b4
b2b3
c1a1
c1b1
c1h1
c1g1
c1f1
c1e1
c1d1
c2d2
c2c4
c2c3
e2f1
e2e1
g2g4
g2g3
h2h4
h2h3
a3a4
e3e4
f3e1
f3e5
f3g1
f3g5
f3d2
f3d4
f3h4
b5a4
b5a6
b5d3
b5c4
b5e8
b5d7
b5c6
c5b3
c5b7
c5d3
c5d7
c5a4
c5a6
c5e4
c5e6

## Board State Fen
r1br4/1p2k1p1/p3pb1p/nBN2p2/8/P3PN2/1PR1KPPP/2R5 w - - 0 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
b2b4
b2b3
c1a1
c1b1
c1h1
c1g1
c1f1
c1e1
c1d1
c2d2
c2c4
c2c3
e2f1
e2e1
g2g4
g2g3
h2h4
h2h3
a3a4
e3e4
f3e1
f3e5
f3g1
f3g5
f3d2
f3d4
f3h4
b5a4
b5a6
b5d3
b5c4
b5e8
b5d7
b5c6
c5b3
c5b7
c5d3
c5d7
c5a4
c5a6
c5e4
c5e6

## Board State Fen
r1br4/1p2k1p1/p3pb1p/nBN2p2/8/P3PN2/1PR1KPPP/2R5 w - - 0 23
assistant
b5d3