r2q1rk1/1pp2ppp/n2pb3/p4n2/1b2PQ2/2P4P/PP1PNN2/R1B1KB1R b KQ - 0 20
FEN state: r2q1rk1/1pp2ppp/n2pb3/p4n2/1b2PQ2/2P4P/PP1PNN2/R1B1KB1R b KQ - 0 20 ; Best move: f5h4
The current state of the chess board is: Black rook at a8, black queen at d8, black rook at f8 and black king at g8. Black pawn at b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at d6 and black bishop at e6. Black pawn at a5 and black knight at f5. Black bishop at b4, white pawn at e4 and white queen at f4. White pawn at c3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at d2, white knight at e2 and white knight at f2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 20. Black to move.