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
a3a4
h1b1
h1c1
h1d1
h1e1
h1f1
h1g1
h1h4
h1h3
h1h2
e2f2
e2f1
e2e1
e2d1
b2b4
b2b3
d2c4
d2e4
d2b1
d2b3
d2f1
a1g1
a1f1
a1e1
a1d1
a1c1
a1b1
a1a2
d3b1
d3c2
d3c4
d3h7
d3g6
d3f5
d3e4
d3b3
d3c3
e3e4
g3f1
g3f5
g3e4
f4b8
f4c7
f4d6
f4e5
g5g6
h5h6

## Board State Fen
2r1k2r/p2nbppp/4p3/qp1p2PP/2nP1B2/P2QPPN1/1P1NK3/R6R w k - 1 21
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
a3a4
h1b1
h1c1
h1d1
h1e1
h1f1
h1g1
h1h4
h1h3
h1h2
e2f2
e2f1
e2e1
e2d1
b2b4
b2b3
d2c4
d2e4
d2b1
d2b3
d2f1
a1g1
a1f1
a1e1
a1d1
a1c1
a1b1
a1a2
d3b1
d3c2
d3c4
d3h7
d3g6
d3f5
d3e4
d3b3
d3c3
e3e4
g3f1
g3f5
g3e4
f4b8
f4c7
f4d6
f4e5
g5g6
h5h6

## Board State Fen
2r1k2r/p2nbppp/4p3/qp1p2PP/2nP1B2/P2QPPN1/1P1NK3/R6R w k - 1 21
assistant
a1c1