r3krn1/pb3p2/npp2b1p/3p1qp1/1P1PP1PP/P1P4N/3N1P2/R3KB1R w KQq - 3 18
FEN state: r3krn1/pb3p2/npp2b1p/3p1qp1/1P1PP1PP/P1P4N/3N1P2/R3KB1R w KQq - 3 18 ; Best move: e4f5
The current state of the chess board is: Black rook at a8, black king at e8, black rook at f8 and black knight at g8. Black pawn at a7, black bishop at b7 and black pawn at f7. Black knight at a6, black pawn at b6, black pawn at c6, black bishop at f6 and black pawn at h6. Black pawn at d5, black queen at f5 and black pawn at g5. White pawn at b4, white pawn at d4, white pawn at e4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at c3 and white knight at h3. White knight at d2 and white pawn at f2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 18. White to move.