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
b3b4
h3h4
c4c5
f3e2
c1a1
c1b1
c1e1
c1d1
c1c2
e3d2
e3b6
e3c5
e3d4
e3g1
e3f2
h1g1
h1h2
c3b1
c3b5
c3d1
c3d5
c3a4
c3e2
c3e4
g2g4
g2g3
a2a4
a2a3
f1d3
f1e2

## Board State Fen
r3r1k1/p4ppp/1npp4/5b2/2P1nP2/1PN1BK1P/P5P1/2R2B1R w - - 2 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
b3b4
h3h4
c4c5
f3e2
c1a1
c1b1
c1e1
c1d1
c1c2
e3d2
e3b6
e3c5
e3d4
e3g1
e3f2
h1g1
h1h2
c3b1
c3b5
c3d1
c3d5
c3a4
c3e2
c3e4
g2g4
g2g3
a2a4
a2a3
f1d3
f1e2

## Board State Fen
r3r1k1/p4ppp/1npp4/5b2/2P1nP2/1PN1BK1P/P5P1/2R2B1R w - - 2 23
assistant
f1d3