Emirp Numbers in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 Calendar Connect Four 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 Calendar Connect Four 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 526th jared-hughes 793 71 9ms 3 Aug 2022 527th pardouin 🇫🇷 793 118 297ms 22 Oct 2024 528th MeWhenI 🇻🇦 792 48 4ms 12 Aug 2024 528th DialFrost 🇸🇬 792 48 4ms 16 Aug 2024 528th emgordon154 792 48 4ms 16 Aug 2024 528th Shanethegamer 🇺🇸 792 48 4ms 25 May 2025 532nd MeWhenI 🇻🇦 792 54 922ms 12 May 2023 533rd acotis 792 90 124ms 23 Apr 2025 533rd kumavale 792 90 125ms 9 Sep 2025 535th m-tkach 🇺🇦 790 115 29ms 18 Jan 2024 536th Yewzir 🇧🇪 789 89 6ms 6 Feb 2024 537th ngn 🇧🇬 788 33 16ms 6 Feb 2022 538th Bubbler-4 788 84 147ms 17 Jan 2019 538th xnor-gate 788 84 132ms 3 Jan 2022 540th MeWhenI 🇻🇦 788 113 32ms 4 Jan 2022 541st IAGOAG 787 47 121ms 25 Jun 2018 541st somebody1234 787 47 137ms 9 Dec 2018 541st elisherer 🇮🇱 787 47 121ms 13 Apr 2019 541st o0lit3 🇺🇸 787 47 149ms 10 Jul 2020 541st rucin93 🇵🇱 787 47 120ms 7 Sep 2020 541st prplz 🇦🇺 787 47 116ms 19 Dec 2020 541st BBoehm 🇩🇪 787 47 93ms 30 Dec 2020 541st olivermrose 🇺🇸 787 47 127ms 20 Sep 2021 541st krcs 🇵🇱 787 47 144ms 21 Apr 2022 541st MeWhenI 🇻🇦 787 47 145ms 4 Aug 2022 541st trist224 🇫🇷 787 47 133ms 28 Nov 2022 541st neel11235813 787 47 132ms 3 Feb 2023 553rd GalladeGuy 🇺🇸 787 82 2ms 21 May 2020 554th MeWhenI 🇻🇦 786 74 2ms 9 Sep 2022 554th inventshah 786 74 2ms 9 Sep 2022 554th GrayJoKing 🇦🇺 786 74 2ms 10 Sep 2022 554th Yewzir 🇧🇪 786 74 3ms 22 Dec 2023 554th sean-niemann 🇺🇸 786 74 8ms 8 Oct 2024 554th albanian-laundromat 786 74 5ms 24 Jun 2025 560th DialFrost 🇸🇬 786 119 268ms 26 Dec 2024 561st Yewzir 🇧🇪 785 72 137ms 28 Mar 2024 562nd msbranicky 784 64 436ms 17 Jan 2024 562nd KatieLG 🇬🇧 784 64 410ms 28 Oct 2024 564th Bonjour27891 🇻🇳 784 69 11ms 14 Jul 2022 565th duckyluuk 🇳🇱 784 72 5ms 16 Dec 2024 566th sisyphus-ppcg 🇦🇺 783 84 1ms 23 Mar 2022 566th namelessiw 783 84 2ms 19 Jul 2024 568th verticallity 783 91 122ms 6 Apr 2022 568th prplz 🇦🇺 783 91 122ms 30 Apr 2022 568th emgordon154 783 91 123ms 24 Feb 2025 571st kozgera 782 72 9ms 26 Mar 2021 572nd ovs-code 🇩🇪 782 83 5ms 7 Feb 2023 573rd inventshah 780 91 60ms 27 Jan 2023 574th MeWhenI 🇻🇦 779 93 39ms 28 Jun 2022 575th Yewzir 🇧🇪 778 58 8ms 14 Dec 2023 575th dokutan 778 58 8ms 8 May 2024 575th Shanethegamer 🇺🇸 778 58 7ms 18 Aug 2024 575th emgordon154 778 58 7ms 5 Dec 2024 575th edsrzf 🇳🇿 778 58 10ms 4 Mar 2025 575th kg583 🇺🇸 778 58 7ms 30 Jul 2025 581st GoateSo 778 83 2ms 14 Aug 2023 582nd DialFrost 🇸🇬 778 85 151ms 6 Aug 2024 583rd dokutan 776 75 3ms 27 Mar 2024 584th dokutan 775 92 130ms 14 Apr 2024 585th lynn 774 85 1ms 2 Oct 2021 585th jared-hughes 774 85 2ms 30 Mar 2022 585th ovs-code 🇩🇪 774 85 2ms 21 Aug 2023 588th nstearns96 🇬🇧 772 70 24ms 6 Jan 2023 589th sisyphus-ppcg 🇦🇺 771 50 5ms 14 Jul 2022 590th MarcMush 🇫🇷 771 58 287ms 5 Jul 2021 591st xohmz 770 48 125ms 4 Nov 2018 591st JRaspass 🇬🇧 770 48 102ms 29 Oct 2022 593rd DialFrost 🇸🇬 770 74 7ms 17 Aug 2025 594th MeWhenI 🇻🇦 769 72 112ms 17 Nov 2022 594th dokutan 769 72 119ms 11 Apr 2024 596th bforte 769 86 131ms 26 Dec 2018 597th SirBogman 🇺🇸 768 52 38ms 3 Dec 2019 597th prplz 🇦🇺 768 52 34ms 3 Dec 2019 597th MeWhenI 🇻🇦 768 52 34ms 26 Oct 2021 600th jacobly0 🇺🇸 766 124 1,858ms 22 Apr 2024 First Prev 526–600 of 3,047 Next Last