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
a5a4
c5b3
c5b7
c5d3
c5d7
c5a4
c5a6
c5e4
c5e6
e5a1
e5b2
e5c3
e5d4
e5h2
e5g3
e5f4
e5h8
e5g7
e5f6
d6d5
g6g5
e7e6
h7h5
h7h6
b8a8
b8b3
b8b4
b8b5
b8b6
b8b7
b8e8
b8d8
b8c8
f8c8
f8d8
f8e8
f8f3
f8f4
f8f5
f8f6
f8f7
g8h8
g8g7
g8f7

## Board State Fen
1r3rk1/4p2p/3p2p1/p1n1b3/2P1P3/1P3B2/P1RB2PP/1R5K b - - 3 29
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
a5a4
c5b3
c5b7
c5d3
c5d7
c5a4
c5a6
c5e4
c5e6
e5a1
e5b2
e5c3
e5d4
e5h2
e5g3
e5f4
e5h8
e5g7
e5f6
d6d5
g6g5
e7e6
h7h5
h7h6
b8a8
b8b3
b8b4
b8b5
b8b6
b8b7
b8e8
b8d8
b8c8
f8c8
f8d8
f8e8
f8f3
f8f4
f8f5
f8f6
f8f7
g8h8
g8g7
g8f7

## Board State Fen
1r3rk1/4p2p/3p2p1/p1n1b3/2P1P3/1P3B2/P1RB2PP/1R5K b - - 3 29
assistant
b8a8