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
d4c2
d4c6
d4e2
d4e6
d4b3
d4b5
d4f3
a6a5
g6g5
b7b5
b7b6
d7a4
d7b5
d7c6
d7c8
d7e6
d7e8
g7e5
g7f6
g7h6
g7h8
h7h5
h7h6
b8a8
b8c8
d8a5
d8b6
d8c7
d8h4
d8g5
d8f6
d8e7
d8c8
d8e8
f8e8
f8f6
f8f7
g8h8
g8f7

## Board State Fen
1r1q1rk1/1p1b2bp/p2p2p1/2pP1p2/P1Pn1P2/2NB3P/1P1Q2P1/1R3RBK b - - 2 21
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
d4c2
d4c6
d4e2
d4e6
d4b3
d4b5
d4f3
a6a5
g6g5
b7b5
b7b6
d7a4
d7b5
d7c6
d7c8
d7e6
d7e8
g7e5
g7f6
g7h6
g7h8
h7h5
h7h6
b8a8
b8c8
d8a5
d8b6
d8c7
d8h4
d8g5
d8f6
d8e7
d8c8
d8e8
f8e8
f8f6
f8f7
g8h8
g8f7

## Board State Fen
1r1q1rk1/1p1b2bp/p2p2p1/2pP1p2/P1Pn1P2/2NB3P/1P1Q2P1/1R3RBK b - - 2 21
assistant
d8a5