r3kbnr/p1p1pp2/B1npq2p/1p6/3PP1pP/NP3N1P/P1P2P2/R1BQK2R b Qkq - 1 10
FEN state: r3kbnr/p1p1pp2/B1npq2p/1p6/3PP1pP/NP3N1P/P1P2P2/R1BQK2R b Qkq - 1 10 ; Best move: e6e4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7 and black pawn at f7. White bishop at a6, black knight at c6, black pawn at d6, black queen at e6 and black pawn at h6. Black pawn at b5. White pawn at d4, white pawn at e4, black pawn at g4 and white pawn at h4. White knight at a3, white pawn at b3, white knight at f3 and white pawn at h3. White pawn at a2, white pawn at c2 and white pawn at f2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. White queenside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. Black to move.