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
f5e4
f5f4
c7c6
e7d7
e7e4
e7e5
e7e6
e7g7
e7f7
e8a8
e8b8
e8c8
e8d8
e8f8
g8f8
g8f7
h8a1
h8b2
h8c3
h8d4
h8e5
h8f6
h8g7

## Board State Fen
4r1kb/2p1r2p/1p1p2pP/pPnP1pB1/2R1P3/5PP1/P1B2K2/3R4 b - - 5 46
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
f5e4
f5f4
c7c6
e7d7
e7e4
e7e5
e7e6
e7g7
e7f7
e8a8
e8b8
e8c8
e8d8
e8f8
g8f8
g8f7
h8a1
h8b2
h8c3
h8d4
h8e5
h8f6
h8g7

## Board State Fen
4r1kb/2p1r2p/1p1p2pP/pPnP1pB1/2R1P3/5PP1/P1B2K2/3R4 b - - 5 46
assistant
e7f7