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
c3a1
c3b2
c3a5
c3b4
c3e1
c3d2
c3g7
c3f6
c3e5
c3d4
e3e2
f5a5
f5b5
f5c5
f5d5
f5e5
f5f4
f5h5
f5g5
f5f8
f5f7
f5f6
h6h5

## Board State Fen
7k/3R4/7p/5r2/P1B2P2/2b1p3/P6P/7K b - - 3 38
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
c3a1
c3b2
c3a5
c3b4
c3e1
c3d2
c3g7
c3f6
c3e5
c3d4
e3e2
f5a5
f5b5
f5c5
f5d5
f5e5
f5f4
f5h5
f5g5
f5f8
f5f7
f5f6
h6h5

## Board State Fen
7k/3R4/7p/5r2/P1B2P2/2b1p3/P6P/7K b - - 3 38
assistant
f5f4