1r2kbnr/ppq2p1p/n1ppb1p1/2P1pP2/1P5P/P1N3P1/3PP1B1/R1BQK1NR b KQk - 0 10
FEN state: 1r2kbnr/ppq2p1p/n1ppb1p1/2P1pP2/1P5P/P1N3P1/3PP1B1/R1BQK1NR b KQk - 0 10 ; Best move: g6f5
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at c7, black pawn at f7 and black pawn at h7. Black knight at a6, black pawn at c6, black pawn at d6, black bishop at e6 and black pawn at g6. White pawn at c5, black pawn at e5 and white pawn at f5. White pawn at b4 and white pawn at h4. White pawn at a3, white knight at c3 and white pawn at g3. White pawn at d2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 0. Full move number is 10. Black to move.