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
b4a3
b4e1
b4d2
b4c3
b4c5
g4g3
a5a4
c6c5
d6d1
d6d2
d6d3
d6d4
d6d5
d6e6
d6d8
d6d7
f6f5
h6h5
c7d7
c7b7
c7b6

## Board State Fen
7R/2k5/2pr1p1p/p7/1b4pP/1P6/P4PKN/8 b - - 1 37
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
b4a3
b4e1
b4d2
b4c3
b4c5
g4g3
a5a4
c6c5
d6d1
d6d2
d6d3
d6d4
d6d5
d6e6
d6d8
d6d7
f6f5
h6h5
c7d7
c7b7
c7b6

## Board State Fen
7R/2k5/2pr1p1p/p7/1b4pP/1P6/P4PKN/8 b - - 1 37
assistant
f6f5