Kaprekar Numbers in all languages in bytes. 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 Calendar 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 Multitap Input 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 Tower of Hanoi 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 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 Tower of Hanoi 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 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 719th CaedenHarper 🇨🇦 186 447 65ms 25 Jan 2025 719th KatieLG-Transpiler 🇬🇧 186 447 61ms 9 Jan 2026 723rd HumanoidCPU 181 449 116ms 1 Nov 2024 723rd dokutan 181 449 116ms 1 Nov 2024 723rd KatieLG 🇬🇧 181 449 122ms 1 Nov 2024 723rd Shanethegamer 🇺🇸 181 449 124ms 1 Nov 2024 723rd MeWhenI 🇻🇦 181 449 126ms 2 Nov 2024 723rd CaedenHarper 🇨🇦 181 449 120ms 16 Aug 2025 729th HumanoidCPU 179 460 109ms 1 Nov 2024 729th dokutan 179 460 113ms 1 Nov 2024 729th MeWhenI 🇻🇦 179 460 115ms 2 Nov 2024 729th klixel 🇨🇦 179 460 110ms 15 Nov 2024 729th Shanethegamer 🇺🇸 179 460 115ms 20 Feb 2025 729th CaedenHarper 🇨🇦 179 460 115ms 16 Aug 2025 735th dokutan 176 475 52ms 1 Nov 2024 735th Shanethegamer 🇺🇸 176 475 48ms 1 Nov 2024 735th CaedenHarper 🇨🇦 176 475 53ms 23 Jan 2025 735th HumanoidCPU 176 475 53ms 28 Nov 2025 739th HumanoidCPU 176 515 4ms 1 Nov 2024 740th dokutan 174 434 39ms 1 Nov 2024 741st JOrE20 174 436 41ms 14 days ago 742nd Blendi-Goose 173 387 1ms 7 Oct 2025 743rd adamnielson42 🇺🇸 173 395 4,427ms 3 Dec 2024 744th MeWhenI 🇻🇦 173 455 39ms 2 Nov 2024 745th dokutan 172 392 121ms 29 Dec 2025 746th HumanoidCPU 172 441 42ms 1 Nov 2024 746th KatieLG 🇬🇧 172 441 44ms 1 Nov 2024 746th Shanethegamer 🇺🇸 172 441 39ms 1 Nov 2024 746th MeWhenI 🇻🇦 172 441 39ms 2 Nov 2024 746th CaedenHarper 🇨🇦 172 441 36ms 25 Jan 2025 751st dokutan 172 470 328ms 24 Sep 2025 751st Jacob385 172 470 468ms 27 Oct 2025 751st HumanoidCPU 172 470 522ms 8 Nov 2025 754th ocefra 170 393 99ms 25 Dec 2024 755th KatieLG-Transpiler 🇬🇧 170 445 45ms 9 Jan 2026 756th Shanethegamer 🇺🇸 170 471 467ms 1 Nov 2024 757th MeWhenI 🇻🇦 170 472 494ms 2 Nov 2024 757th CaedenHarper 🇨🇦 170 472 448ms 24 Jan 2025 759th HumanoidCPU 170 473 479ms 1 Nov 2024 760th HumanoidCPU 167 455 2ms 1 Nov 2024 760th dokutan 167 455 2ms 1 Nov 2024 760th KatieLG 🇬🇧 167 455 2ms 1 Nov 2024 760th Shanethegamer 🇺🇸 167 455 2ms 1 Nov 2024 760th MeWhenI 🇻🇦 167 455 2ms 2 Nov 2024 760th CaedenHarper 🇨🇦 167 455 2ms 16 Aug 2025 766th HumanoidCPU 167 458 392ms 1 Nov 2024 766th Shanethegamer 🇺🇸 167 458 411ms 1 Nov 2024 766th dokutan 167 458 381ms 1 Nov 2024 766th mwarvik 🇳🇴 167 458 336ms 5 Jan 2026 770th KatieLG 🇬🇧 167 472 42ms 1 Nov 2024 771st KatieLG-Transpiler 🇬🇧 166 459 2ms 9 Jan 2026 772nd HumanoidCPU 165 441 3ms 1 Nov 2024 772nd dokutan 165 441 3ms 1 Nov 2024 772nd KatieLG 🇬🇧 165 441 3ms 1 Nov 2024 772nd Shanethegamer 🇺🇸 165 441 3ms 1 Nov 2024 772nd MeWhenI 🇻🇦 165 441 3ms 2 Nov 2024 772nd CaedenHarper 🇨🇦 165 441 3ms 31 Jan 2025 772nd KatieLG-Transpiler 🇬🇧 165 441 3ms 9 Jan 2026 779th dokutan 165 445 1,922ms 1 Nov 2024 779th MeWhenI 🇻🇦 165 445 2,025ms 2 Nov 2024 779th CaedenHarper 🇨🇦 165 445 2,097ms 1 Feb 2025 782nd HumanoidCPU 162 452 2,027ms 1 Nov 2024 782nd Shanethegamer 🇺🇸 162 452 2,005ms 1 Nov 2024 782nd Chinay-Domitrix 🇺🇸 162 452 2,143ms 9 Apr 2025 785th HumanoidCPU 160 657 30ms 4 Nov 2025 786th dokutan 159 318 53ms 1 Nov 2024 787th CaedenHarper 🇨🇦 159 659 26ms 16 Aug 2025 788th KatieLG-Transpiler 🇬🇧 159 660 26ms 9 Jan 2026 789th dokutan 157 349 127ms 27 Dec 2025 790th KatieLG-Transpiler 🇬🇧 156 522 344ms 9 Jan 2026 791st dokutan 155 509 37ms 1 Nov 2024 791st MeWhenI 🇻🇦 155 509 37ms 2 Nov 2024 791st CaedenHarper 🇨🇦 155 509 37ms 22 Jan 2025 791st JOrE20 155 509 39ms 14 days ago 795th KatieLG 🇬🇧 155 510 36ms 1 Nov 2024 796th KatieLG-Transpiler 🇬🇧 155 531 111ms 9 Jan 2026 797th Kokusui 🇯🇵 154 434 4ms 19 Nov 2024 798th HumanoidCPU 154 454 67ms 1 Nov 2024 798th dokutan 154 454 66ms 1 Nov 2024 798th CaedenHarper 🇨🇦 154 454 64ms 16 Aug 2025 First Prev 721–800 of 1,081 Next Last