Kaprekar Numbers in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Billiards 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 Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper 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 Partition Numbers 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 ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal 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 Billiards 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 Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper 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 Partition Numbers 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 ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 749th fischfood 150 445 5ms 8 Nov 2024 749th CaedenHarper 🇨🇦 150 445 4ms 16 Aug 2025 753rd Unknownuserfrommars 150 557 2,850ms 10 Dec 2024 754th Maznek 149 364 9ms 8 Nov 2024 754th elisherer 🇮🇱 149 364 9ms 21 days ago 756th HumanoidCPU 149 448 5ms 1 Nov 2024 756th Shanethegamer 🇺🇸 149 448 2ms 1 Nov 2024 756th koipondx86 149 448 2ms 1 Nov 2024 756th MeWhenI 🇻🇦 149 448 2ms 2 Nov 2024 756th CaedenHarper 🇨🇦 149 448 2ms 16 Aug 2025 761st KatieLG 🇬🇧 149 538 469ms 1 Nov 2024 762nd KatieLG 🇬🇧 149 563 902ms 1 Nov 2024 763rd HumanoidCPU 148 456 2ms 1 Nov 2024 763rd Shanethegamer 🇺🇸 148 456 1ms 1 Nov 2024 763rd CaedenHarper 🇨🇦 148 456 2ms 23 Jan 2025 766th HumanoidCPU 146 461 104ms 1 Nov 2024 766th KatieLG 🇬🇧 146 461 103ms 1 Nov 2024 766th Shanethegamer 🇺🇸 146 461 106ms 1 Nov 2024 766th dokutan 146 461 103ms 1 Nov 2024 766th MeWhenI 🇻🇦 146 461 106ms 2 Nov 2024 766th CaedenHarper 🇨🇦 146 461 103ms 24 Jan 2025 772nd HumanoidCPU 141 446 68ms 1 Nov 2024 772nd Shanethegamer 🇺🇸 141 446 70ms 1 Nov 2024 772nd MeWhenI 🇻🇦 141 446 72ms 2 Nov 2024 772nd CaedenHarper 🇨🇦 141 446 71ms 16 Aug 2025 776th emgordon154 139 602 1,781ms 12 Dec 2024 777th HumanoidCPU 137 452 9ms 1 Nov 2024 777th GolfingSuccess 🇬🇷 137 452 9ms 1 Nov 2024 777th zbreit 🇺🇸 137 452 9ms 1 Nov 2024 777th Shanethegamer 🇺🇸 137 452 9ms 1 Nov 2024 777th madex 🇩🇪 137 452 9ms 1 Nov 2024 777th jtaxen 137 452 9ms 1 Nov 2024 777th Stockoh 🇫🇷 137 452 10ms 4 Nov 2024 777th evan18c 137 452 9ms 7 Nov 2024 777th roguh 🇬🇹 137 452 9ms 27 Nov 2024 777th mathisfun271 137 452 10ms 25 Jan 2025 777th moustave 137 452 9ms 9 Apr 2025 777th SectorCorruptor 137 452 9ms 24 Jul 2025 777th vgamula 🇺🇦 137 452 14ms 25 Jul 2025 777th Unknownuserfrommars 137 452 9ms 5 Aug 2025 777th JOrE20 🇺🇸 137 452 11ms 18 days ago 792nd dokutan 136 273 2ms 13 Nov 2024 793rd KasperKivimaeki 🇫🇮 136 457 10ms 15 Jul 2025 793rd 051 🇸🇬 136 457 9ms 8 Oct 2025 795th HumanoidCPU 136 575 46ms 9 Mar 2025 796th Upload-and-View 🇺🇦 135 458 10ms 9 Aug 2025 797th KatieLG 🇬🇧 135 516 61ms 1 Nov 2024 798th HumanoidCPU 134 452 373ms 1 Nov 2024 798th Shanethegamer 🇺🇸 134 452 387ms 1 Nov 2024 800th dokutan 133 473 1ms 1 Nov 2024 801st KatieLG 🇬🇧 133 475 2ms 1 Nov 2024 802nd KatieLG 🇬🇧 132 515 100ms 1 Nov 2024 803rd HumanoidCPU 131 444 3ms 1 Nov 2024 803rd KatieLG 🇬🇧 131 444 3ms 1 Nov 2024 803rd Shanethegamer 🇺🇸 131 444 3ms 1 Nov 2024 803rd dokutan 131 444 3ms 1 Nov 2024 803rd MeWhenI 🇻🇦 131 444 3ms 2 Nov 2024 803rd CaedenHarper 🇨🇦 131 444 3ms 16 Aug 2025 809th KatieLG 🇬🇧 130 512 4ms 1 Nov 2024 810th KatieLG 🇬🇧 130 515 2ms 8 Jan 2025 811th KatieLG 🇬🇧 127 530 2ms 1 Nov 2024 812th sciencejiho 126 532 2ms 12 Feb 2025 813th KatieLG 🇬🇧 124 515 1ms 1 Nov 2024 813th MeWhenI 🇻🇦 124 515 1ms 2 Nov 2024 813th CaedenHarper 🇨🇦 124 515 1ms 12 days ago 813th Shanethegamer 🇺🇸 124 515 1ms 12 days ago 813th HumanoidCPU 124 515 1ms 12 days ago 818th Shanethegamer 🇺🇸 122 445 36ms 1 Nov 2024 818th CaedenHarper 🇨🇦 122 445 34ms 16 Aug 2025 820th KatieLG 🇬🇧 122 517 66ms 1 Nov 2024 821st HumanoidCPU 122 518 2ms 1 Nov 2024 821st Shanethegamer 🇺🇸 122 518 2ms 1 Nov 2024 821st MeWhenI 🇻🇦 122 518 2ms 2 Nov 2024 821st CaedenHarper 🇨🇦 122 518 2ms 22 Jan 2025 825th HumanoidCPU 121 446 9ms 1 Nov 2024 First Prev 751–825 of 963 Next Last