rnb1kb1r/pp1pp1p1/B4n2/q1p2P1p/2PP4/N5P1/PP3P1P/R1BQK1NR w KQkq - 5 10
FEN state: rnb1kb1r/pp1pp1p1/B4n2/q1p2P1p/2PP4/N5P1/PP3P1P/R1BQK1NR w KQkq - 5 10 ; Best move: c1d2
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at e7 and black pawn at g7. White bishop at a6 and black knight at f6. Black queen at a5, black pawn at c5, white pawn at f5 and black pawn at h5. White pawn at c4 and white pawn at d4. White knight at a3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at f2 and white pawn at h2. 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, black kingside and black queenside castles are available. Half move number is 5. Full move number is 10. White to move.