The Kaprekar Numbers hole will go live in 2 days. Why not try and solve it ahead of time?
τ in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc gs All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 # Golfer Points Bytes Time 1st saito-ta 🇯🇵 1,000 27 17 Jun 2022 1st sisyphus-ppcg 🇦🇺 1,000 27 20 Jun 2022 1st nwellnhof 🇩🇪 1,000 27 20 Jun 2022 4th primo-ppcg 🇹🇭 992 29 13 Aug 2018 4th HPWiz 🇬🇧 992 29 23 Sep 2018 4th jslip 992 29 24 Sep 2018 4th diddily 992 29 29 Oct 2019 4th SirBogman 🇺🇸 992 29 29 Oct 2019 4th nwellnhof 🇩🇪 992 29 6 May 2020 4th yzhs 🇩🇪 992 29 9 Sep 2020 4th GrayJoKing 🇦🇺 992 29 5 Dec 2020 4th lynn 992 29 13 Apr 2021 4th Shanethegamer 🇺🇸 992 29 17 Apr 2021 4th JayXon 🇺🇸 992 29 29 Jul 2021 4th rak1507 🇬🇧 992 29 24 Oct 2021 4th Bubbler-4 992 29 30 Nov 2021 4th Lydxn 🇨🇦 992 29 16 Dec 2021 4th Frowny 992 29 20 Apr 2022 4th ovs-code 🇩🇪 992 29 14 May 2022 4th 4hg 🇺🇸 992 29 6 Jul 2022 4th Natanaelel 🇸🇪 992 29 17 Jul 2023 4th stackofbears 992 29 17 Dec 2023 23rd saito-ta 🇯🇵 977 33 4 Aug 2023 23rd primo-ppcg 🇹🇭 977 33 4 Aug 2023 25th ETHproductions 🇺🇸 972 40 20 Dec 2018 25th antimon2 🇯🇵 972 40 1 Jul 2020 25th ReidZ3 🇺🇸 972 40 4 Dec 2020 25th sisyphus-ppcg 🇦🇺 972 40 21 Dec 2020 25th HPWiz 🇬🇧 972 40 5 Jun 2021 25th primo-ppcg 🇹🇭 972 40 5 Jun 2021 25th KatieLG 🇬🇧 972 40 5 Jun 2021 25th JayXon 🇺🇸 972 40 6 Jun 2021 25th Lydxn 🇨🇦 972 40 6 Jun 2021 25th janbehrens 🇩🇪 972 40 1 Nov 2021 25th JRaspass 🇬🇧 972 40 3 Dec 2021 25th Codsilla 🇨🇦 972 40 3 Jul 2022 25th rustyflamingo 972 40 22 Sep 2022 25th GrayJoKing 🇦🇺 972 40 31 Oct 2022 25th Shanethegamer 🇺🇸 972 40 31 Oct 2022 25th SirBogman 🇺🇸 972 40 31 Oct 2022 25th inventshah 972 40 6 Nov 2022 25th DialFrost 🇸🇬 972 40 15 Jan 2023 25th prplz 🇦🇺 972 40 15 Jan 2023 25th sean-niemann 🇺🇸 972 40 19 Jan 2023 25th Steffan153 🇫🇮 972 40 21 Jan 2023 25th scpchicken 🇵🇼 972 40 28 Feb 2023 25th alemelis 972 40 1 Mar 2023 25th m-tkach 🇺🇦 972 40 4 Mar 2023 25th stefangimmillaro 972 40 1 Aug 2023 25th MeWhenI 🇻🇦 972 40 3 Aug 2023 25th pabloferz 972 40 20 Sep 2023 25th MarcMush 🇫🇷 972 40 3 Jan 2024 25th pardouin 🇫🇷 972 40 11 Jul 2024 25th ovs-code 🇩🇪 972 40 18 Jul 2024 25th emgordon154 972 40 14 Sep 2024 25th twolfive 972 40 24 days ago 57th Lydxn 🇨🇦 970 65 28 Dec 2021 57th HPWiz 🇬🇧 970 65 19 Jan 2024 59th Lydxn 🇨🇦 968 42 31 Jan 2022 59th radarek 🇵🇱 968 42 23 Jun 2024 61st HPWiz 🇬🇧 961 38 21 Nov 2020 62nd NewDefectus 🇮🇱 959 30 10 Oct 2021 62nd jared-hughes 959 30 20 Oct 2021 64th primo-ppcg 🇹🇭 959 62 18 Jun 2019 64th JayXon 🇺🇸 959 62 25 Nov 2020 64th lukegustafson 🇺🇸 959 62 6 Dec 2023 67th primo-ppcg 🇹🇭 955 66 5 Oct 2020 67th xnor-gate 955 66 16 Apr 2021 67th nwellnhof 🇩🇪 955 66 31 Oct 2021 70th Lydxn 🇨🇦 954 47 2 Aug 2023 71st ListeriaM 949 41 22 Aug 2023 71st anter69 🇭🇺 949 41 1 Nov 2023 71st Yewzir 🇧🇪 949 41 26 May 2024 71st cdesodt 949 41 27 Sep 2024 75th primo-ppcg 🇹🇭 949 53 1 Aug 2023 1–75 of 1,863 Next