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
b4a2
b4a6
b4c2
b4c6
b4d3
b4d5
b6b5
e6e5
f6f5
e7f8
e7f7
e7e8
e7d8
e7d7
e7d6

## Board State Fen
8/4k3/1p2pp2/p6p/Pn1P3P/1P2NP2/4K3/8 b - - 0 50
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
b4a2
b4a6
b4c2
b4c6
b4d3
b4d5
b6b5
e6e5
f6f5
e7f8
e7f7
e7e8
e7d8
e7d7
e7d6

## Board State Fen
8/4k3/1p2pp2/p6p/Pn1P3P/1P2NP2/4K3/8 b - - 0 50
assistant
e7f7