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
a7a5
a7a6
h6h5
b7a6
b7a8
b7d5
b7c6
b7b1
b7b2
b7b3
b7b4
b7b5
b7b6
b7f7
b7e7
b7d7
b7c7
g7g5
g7g6
b8a8
c8c4
c8c5
c8c6
c8c7
c8d8
e8d6
e8f6
e8c7
h8g8

## Board State Fen
1rr1n2k/pq4p1/7p/3R4/2P1Q3/P5P1/4PPKP/3R4 b - - 2 28
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
a7a5
a7a6
h6h5
b7a6
b7a8
b7d5
b7c6
b7b1
b7b2
b7b3
b7b4
b7b5
b7b6
b7f7
b7e7
b7d7
b7c7
g7g5
g7g6
b8a8
c8c4
c8c5
c8c6
c8c7
c8d8
e8d6
e8f6
e8c7
h8g8

## Board State Fen
1rr1n2k/pq4p1/7p/3R4/2P1Q3/P5P1/4PPKP/3R4 b - - 2 28
assistant
b7a8