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
b2c1
b2b3
b2b1
b2a2
b2a1
c2c4
c2c3
d2d1
d2f2
d2e2
d2d3
g2g4
g2g3
h2h4
h2h3
f3f4
d4b4
d4c4
d4d3
d4h4
d4g4
d4f4
d4e4
d4d5
d6c4
d6c8
d6e4
d6e8
d6b5
d6b7
d6f5
d6f7

## Board State Fen
6k1/2r2p2/1r1N1np1/7p/1p1R4/5P2/1KPR2PP/8 w - h6 0 29
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
b2c1
b2b3
b2b1
b2a2
b2a1
c2c4
c2c3
d2d1
d2f2
d2e2
d2d3
g2g4
g2g3
h2h4
h2h3
f3f4
d4b4
d4c4
d4d3
d4h4
d4g4
d4f4
d4e4
d4d5
d6c4
d6c8
d6e4
d6e8
d6b5
d6b7
d6f5
d6f7

## Board State Fen
6k1/2r2p2/1r1N1np1/7p/1p1R4/5P2/1KPR2PP/8 w - h6 0 29
assistant
d6c4