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
b4b3
b5a4
b5a6
b5d3
b5c4
b5d7
b5c6
f5e3
f5e7
f5g3
f5d4
f5d6
f5h4
f5h6
h5h4
b6a5
b6a7
b6d4
b6c5
b6d8
b6c7
b6a6
b6d6
b6c6
f7f6
g7g5
g7g6
a8a3
a8a4
a8a5
a8a6
a8a7
a8d8
a8c8
a8b8
e8c8
e8e7
e8d8
e8d7
f8c5
f8d6
f8e7
h8g8
h8h6
h8h7

## Board State Fen
r3kb1r/1p3pp1/1q2p3/1b1pPn1p/1p1P4/P2BBN2/1P3PPP/1R1Q1R1K b kq - 1 15
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
b4b3
b5a4
b5a6
b5d3
b5c4
b5d7
b5c6
f5e3
f5e7
f5g3
f5d4
f5d6
f5h4
f5h6
h5h4
b6a5
b6a7
b6d4
b6c5
b6d8
b6c7
b6a6
b6d6
b6c6
f7f6
g7g5
g7g6
a8a3
a8a4
a8a5
a8a6
a8a7
a8d8
a8c8
a8b8
e8c8
e8e7
e8d8
e8d7
f8c5
f8d6
f8e7
h8g8
h8h6
h8h7

## Board State Fen
r3kb1r/1p3pp1/1q2p3/1b1pPn1p/1p1P4/P2BBN2/1P3PPP/1R1Q1R1K b kq - 1 15
assistant
f8e7