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
b6a4
b6a8
b6c4
b6c8
b6d7
f6e4
f6g4
f6d7
f6h5
f6h7
g7g5
g7g6
h6h5
e5d4
e5e4
e8a8
e8b8
e8c8
e8d8
e8e6
e8e7
e8f8
g8h8
g8h7
g8f8
f7c7
f7d7
f7e7
f7f8
a6a5

## Board State Fen
4r1k1/1p3rp1/pn3n1p/2Npp3/3P4/1PN1P2P/P5P1/2R2RK1 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
b6a4
b6a8
b6c4
b6c8
b6d7
f6e4
f6g4
f6d7
f6h5
f6h7
g7g5
g7g6
h6h5
e5d4
e5e4
e8a8
e8b8
e8c8
e8d8
e8e6
e8e7
e8f8
g8h8
g8h7
g8f8
f7c7
f7d7
f7e7
f7f8
a6a5

## Board State Fen
4r1k1/1p3rp1/pn3n1p/2Npp3/3P4/1PN1P2P/P5P1/2R2RK1 b - - 0 23
assistant
e5d4