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
a2a1
a2d2
a2c2
a2b2
a2a8
a2a7
a2a6
a2a5
a2a4
a2a3
e6e5
f6e4
f6e8
f6g4
f6d5
f6h5
d7c5
d7e5
d7b6
d7b8
d7f8
g7g5
g7g6
h7h5
h7h6
g8h8
g8f8

## Board State Fen
6k1/1R1n1ppp/4pn2/8/5B2/6P1/r2NPPKP/8 b - - 0 23
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
a2a1
a2d2
a2c2
a2b2
a2a8
a2a7
a2a6
a2a5
a2a4
a2a3
e6e5
f6e4
f6e8
f6g4
f6d5
f6h5
d7c5
d7e5
d7b6
d7b8
d7f8
g7g5
g7g6
h7h5
h7h6
g8h8
g8f8

## Board State Fen
6k1/1R1n1ppp/4pn2/8/5B2/6P1/r2NPPKP/8 b - - 0 23
assistant
h7h6