Soak cucumbers in cold water for 30 minutes. Cut the tips. Put cucumbers in a plastic bag. Cut dill, peel and finely chop the garlic, and add to cucumbers. Crush the peppercorns and add to the package together with salt and sugar. Tie the bag and shake it well for about 3 minutes. Leave at room temperature for 1 hour. Shake the package from time to time: cucumbers are evenly salted in this way. Then refrigerate the package for 3 hours.