The biscuits are ground or crushed very finely. Mixed with softened butter - to become oily crumbs. Place in a greased cake form with removable bottom and a diameter of about 20 cm. Pressed very well, and makes high edge. The form was placed in the refrigerator. Pumpkin, well washed, unskinned, boiled steam (quickly in the pressure cooker for 7-10 minutes) or burned. Cool and remove the thin membrane of sheet and passaged or creases. Add 2 tbsp sugar and cinnamon. Everything is well mixed. Chocolate is crushed into pieces and together with the butter and chocolate are melted in a water bath. Eggs are broken down with sugar, add to the cottage cheese, add the drained yogurt, remaining sugar, flour and vanilla and stir lightly to taking all ingredients. Divide into 3 parts. One remains white, the second mixed with pumpkin, and the third is added the chocolate mixture. On the biscuit base is placed one after another of the three new mixtures. Here we have different versions of the arrangement - to each other (as pictured); first one mixture, then top the other and finally the third mixture; of piles to put the three mixtures on each other, etc. shape with cheesecake is placed in a preheated oven at 160 C and bake for about 60 minutes. It is desirable that at least the first 30-40 minutes, the oven can not be opened. After baking, the oven door is left ajar and cheesecake remains to be poizstudi in the oven. The mold is then placed on the grid with a sharp knife passes on the edge of the wall, but it is not removed until the cheesecake has cooled completely. When serving portions can be field with chocolate or sprinkle powdered sugar.