r3k2r/pb3p2/1p1qN1p1/2pp4/3Pp1np/1PP5/nQ2P1KP/RNB2B1R b - - 3 21
FEN state: r3k2r/pb3p2/1p1qN1p1/2pp4/3Pp1np/1PP5/nQ2P1KP/RNB2B1R b - - 3 21 ; Best move: a2c1
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at h8. Black pawn at a7, black bishop at b7 and black pawn at f7. Black pawn at b6, black queen at d6, white knight at e6 and black pawn at g6. Black pawn at c5 and black pawn at d5. White pawn at d4, black pawn at e4, black knight at g4 and black pawn at h4. White pawn at b3 and white pawn at c3. Black knight at a2, white queen at b2, white pawn at e2, white king at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.