bool pass(cell gamefield[9][9], int startx,int starty, int endx, int endy)
{
	bool up,down,left,right;
	gamefield[startx][starty].busy = true;
	if ((startx == endx) && (starty == endy)) return true;
	else
	{
		if ((starty>0) && (gamefield[startx][starty-1].busy == false)) up = pass(gamefield,startx,starty-1,endx,endy);
		else up = false;

		if ((startx>0) && (gamefield[startx-1][starty].busy == false)) left = pass(gamefield,startx-1,starty,endx,endy);
		else left = false;

		if ((starty<8) && (gamefield[startx][starty+1].busy == false)) down = pass(gamefield,startx,starty+1,endx,endy);
		else down = false;

		if ((startx<0) && (gamefield[startx+1][starty].busy == false)) right = pass(gamefield,startx+1,starty,endx,endy);
		else up = false;

		return(up || down || left || right);
	}
};