Happy Numbers in Rust 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL 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 ><> ALGOL 68 ArkScript 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 APL 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st Lydxn 🇨🇦 1,000 67 122ms 13 Jan 2022 1st JayXon 🇺🇸 1,000 67 121ms 14 Jan 2022 3rd andersk 🇺🇸 985 68 120ms 22 Oct 2022 3rd Steffan153 🇫🇮 985 68 122ms 16 Feb 2026 5th primo-ppcg 🇹🇭 971 69 128ms 14 Jan 2022 6th stefangimmillaro 882 76 124ms 4 Oct 2023 7th elgan65536 🇺🇸 788 85 124ms 22 Sep 2023 8th prplz 🇦🇺 779 86 124ms 30 Apr 2022 8th pardouin 🇫🇷 779 86 120ms 24 Aug 2024 10th lynn 770 87 126ms 7 Jul 2024 10th emgordon154 770 87 120ms 18 Feb 2025 10th edsrzf 🇳🇿 770 87 126ms 4 Mar 2025 10th DialFrost 🇸🇬 770 87 118ms 4 Apr 2025 10th acotis 770 87 124ms 15 Apr 2025 10th ovs-code 🇩🇪 770 87 119ms 20 Apr 2025 10th sean-niemann 🇺🇸 770 87 128ms 6 Jun 2025 10th kumavale 770 87 124ms 17 Aug 2025 18th jared-hughes 761 88 115ms 10 Nov 2022 18th kgodara 761 88 128ms 11 Mar 2023 18th snoozingnewt 🇨🇦 761 88 113ms 29 Nov 2025 21st JunkIce 744 90 128ms 23 Feb 2025 21st dokutan 744 90 125ms 23 Jul 2025 23rd jusaka 728 92 119ms 2 days ago 24th btjones0 609 110 131ms 29 Dec 2020 25th GrayJoKing 🇦🇺 604 111 120ms 24 Mar 2021 26th The3gs 583 115 132ms 29 Nov 2024 26th Natanaelel 🇸🇪 583 115 132ms 23 Jul 2025 28th timvermeulen 578 116 128ms 6 Jan 2020 29th mousetail 🇳🇱 568 118 141ms 15 Jan 2024 30th Shanethegamer 🇺🇸 563 119 126ms 13 Jan 2022 30th MeWhenI 🇻🇦 563 119 133ms 9 May 2023 30th Yewzir 🇧🇪 563 119 127ms 14 Jan 2024 33rd Mabeloid 🇳🇴 554 121 134ms 31 Oct 2025 33rd CaedenHarper 🇨🇦 554 121 127ms 1 Dec 2025 35th gbxdl 549 122 127ms 14 Jun 2022 36th Re-Adventures 🇮🇳 545 123 131ms 27 Aug 2022 37th madex 🇩🇪 536 125 136ms 27 hours ago 38th ian-h-chamberlain 🇺🇸 532 126 122ms 4 Dec 2025 39th jiaminglimjm 🇲🇾 528 127 109ms 3 Jan 2021 39th scpchicken 🇵🇼 528 127 119ms 17 May 2022 39th klixel 🇨🇦 528 127 110ms 5 Dec 2022 39th retrohun 528 127 112ms 27 Dec 2022 39th HumanoidCPU 528 127 111ms 3 May 2024 44th levinwinter 523 128 116ms 22 Nov 2025 45th msbranicky 519 129 105ms 9 Sep 2023 45th webmiche 519 129 108ms 3 Nov 2025 47th minno726 511 131 108ms 4 Jan 2020 48th jaxmattfair 🇺🇸 504 133 134ms 4 Jun 2025 48th Laellekoenig 504 133 129ms 3 Nov 2025 50th pogwolfe 500 134 128ms 4 Jun 2025 51st JGDoerrer 482 139 124ms 5 Feb 2022 52nd Aloso 465 144 125ms 4 Jan 2020 52nd Pale-Vessel 465 144 115ms 23 Sep 2025 54th KatieLG 🇬🇧 447 150 166ms 30 Nov 2025 55th wiebecommajonas 424 158 134ms 30 Nov 2022 56th mokymok 🇺🇸 419 160 107ms 8 Nov 2021 56th zt14427 419 160 115ms 4 Mar 2023 58th KatieLG-Transpiler 🇬🇧 416 161 106ms 24 Jun 2022 59th vang1ong7ang 396 169 125ms 4 days ago 60th snakehand 305 220 164ms 4 Jan 2020 61st Eugen-str 257 261 170ms 31 Oct 2023 62nd fantaize 231 290 127ms 26 days ago 63rd anna099 225 298 177ms 15 Aug 2021 64th antonymerle 211 317 147ms 19 May 2020 65th dijs 159 422 131ms 24 Jun 2021 66th neeldug 119 561 132ms 29 Jul 2020 1–66 of 66