A process for production of paper, card and board comprising draining a filler-containing paper stock comprising at least one water-soluble amphoteric copolymer with sheet formation in the wire section and then pressing the paper in the press section, wherein a paper stock having a fibrous concentration in the range from 20 to 40 g/l has the at least one water-soluble amphoteric copolymer added to it, then the paper stock is diluted to a fibrous concentration in the range from 5 to 15 g/l, the diluted paper stock is drained to form a sheet and the sheet is pressed in the press section to a solids content G(x) wt% or greater and G(x) computes according to G x = 48 + x − 15 ⋅ 0.4 where x is the numerical value of the filler content of the dry paper, card or board (in wt%) and G(x) is the numerical value of the minimal solids content (in wt%) to which the sheet is pressed, wherein the water-soluble amphoteric copolymer is obtainable by polymerizing a mixture of a) 20 to 60 mol% of acrylamide, based on the total number of moles of monomers used for polymerization, b) 20 to 60 mol%, based on the total number of moles of monomers used for polymerization, of at least one cationic monomer, c) 20 to 60 mol%, based on the total number of moles of monomers used for polymerization, of at least one anionic monomer selected from monoethylenically unsaturated C 3 to C 5 carboxylic acids, monoethylenically unsaturated C 3 to C 5 dicarboxylic acids, sulfonic acids, phosphonic acids and/or salts thereof, d) 0 to 30 mol%, based on the total number of moles of monomers used for polymerization, of one or more monoethylenically unsaturated monomers other than said monomers (a), (b) and (c), and e) 0 to 5 mol%, based on the total number of moles of monomers used for polymerization, of one or more compounds having two or more ethylenically unsaturated double bonds in the molecule, wherein the difference between the fractions of cationic and of anionic monomer in mol%, each being based on the total number of moles of monomers used for polymerization, is not more than 10 mol%, wherein the water-soluble amphoteric copolymer is added to the paper stock having a fibrous concentration in the range from 20 to 40 g/l and before adding a filler, wherein, for a filler content of 15 or less, the process comprises pressing to a solids content of at least 45 wt%. where x is the numerical value of the filler content of the dry paper, card or board (in wt%) and G(x) is the numerical value of the minimal solids content (in wt%) to which the sheet is pressed, a) 20 to 60 mol% of acrylamide, based on the total number of moles of monomers used for polymerization, b) 20 to 60 mol%, based on the total number of moles of monomers used for polymerization, of at least one cationic monomer, c) 20 to 60 mol%, based on the total number of moles of monomers used for polymerization, of at least one anionic monomer selected from monoethylenically unsaturated C 3 to C 5 carboxylic acids, monoethylenically unsaturated C 3 to C 5 dicarboxylic acids, sulfonic acids, phosphonic acids and/or salts thereof, d) 0 to 30 mol%, based on the total number of moles of monomers used for polymerization, of one or more monoethylenically unsaturated monomers other than said monomers (a), (b) and (c), and e) 0 to 5 mol%, based on the total number of moles of monomers used for polymerization, of one or more compounds having two or more ethylenically unsaturated double bonds in the molecule,