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
c1a1
c1b1
c1h1
c1g1
c1f1
c1e1
c1d1
c1c8
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
b6a5
b6f2
b6e3
b6d4
b6c5
b6d8
b6c7
e6e5
f6f5
g6e4
g6f5
g6h5
a7a5
a7a6
h7h5
h7h6
g8h8
g8g7
g8f8

## Board State Fen
6k1/pR3p1p/1b2ppb1/8/4P3/NP3BP1/P4PKP/2r5 b - - 0 26
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
c1a1
c1b1
c1h1
c1g1
c1f1
c1e1
c1d1
c1c8
c1c7
c1c6
c1c5
c1c4
c1c3
c1c2
b6a5
b6f2
b6e3
b6d4
b6c5
b6d8
b6c7
e6e5
f6f5
g6e4
g6f5
g6h5
a7a5
a7a6
h7h5
h7h6
g8h8
g8g7
g8f8

## Board State Fen
6k1/pR3p1p/1b2ppb1/8/4P3/NP3BP1/P4PKP/2r5 b - - 0 26
assistant
b6c5