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
b4b3
d5d4
d6c4
d6c8
d6e4
d6e8
d6b5
d6f5
e6e5
h6h5
b7b5
b7b6
f7f5
f7f6
g7g5
g7g6
a8a4
a8a5
a8a6
a8a7
a8f8
a8e8
a8d8
a8c8
a8b8
g8h8
g8h7
g8f8

## Board State Fen
r5k1/1p3pp1/3np2p/2Pp4/Pp6/4P2P/1P1N1PP1/2R3K1 b - - 0 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
b4b3
d5d4
d6c4
d6c8
d6e4
d6e8
d6b5
d6f5
e6e5
h6h5
b7b5
b7b6
f7f5
f7f6
g7g5
g7g6
a8a4
a8a5
a8a6
a8a7
a8f8
a8e8
a8d8
a8c8
a8b8
g8h8
g8h7
g8f8

## Board State Fen
r5k1/1p3pp1/3np2p/2Pp4/Pp6/4P2P/1P1N1PP1/2R3K1 b - - 0 29
assistant
a8c8