r2qkb1r/2p1pppp/p1n4n/1p1pP3/1PNP2b1/B2Q4/P1P2PPP/RN2KB1R b KQkq - 8 10
FEN state: r2qkb1r/2p1pppp/p1n4n/1p1pP3/1PNP2b1/B2Q4/P1P2PPP/RN2KB1R b KQkq - 8 10 ; Best move: d5c4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black knight at c6 and black knight at h6. Black pawn at b5, black pawn at d5 and white pawn at e5. White pawn at b4, white knight at c4, white pawn at d4 and black bishop at g4. White bishop at a3 and white queen at d3. 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 king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 8. Full move number is 10. Black to move.