rn2q3/4kpbr/1p2N1p1/4P2p/pP1K1n2/B3P2b/P1P2PPP/RN2QB1R b - - 0 21
FEN state: rn2q3/4kpbr/1p2N1p1/4P2p/pP1K1n2/B3P2b/P1P2PPP/RN2QB1R b - - 0 21 ; Best move: f4e6
The current state of the chess board is: Black rook at a8, black knight at b8 and black queen at e8. Black king at e7, black pawn at f7, black bishop at g7 and black rook at h7. Black pawn at b6, white knight at e6 and black pawn at g6. White pawn at e5 and black pawn at h5. Black pawn at a4, white pawn at b4, white king at d4 and black knight at f4. White bishop at a3, white pawn at e3 and black bishop at h3. White pawn at a2, white pawn at c2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.