ISBN 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 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 401st emgordon154 829 74 139ms 6 Sep 2024 402nd ZakkkkAttackkkk 🇵🇭 829 111 1ms 9 Nov 2023 402nd Szum123321 🇵🇱 829 111 2ms 9 Dec 2023 402nd DialFrost 🇸🇬 829 111 1ms 20 Dec 2024 405th prplz 🇦🇺 828 93 425ms 18 Jan 2022 405th hemphen 828 93 369ms 28 Aug 2022 405th feberhard 828 93 469ms 6 Apr 2023 405th sean-niemann 🇺🇸 828 93 424ms 19 Apr 2025 409th MeWhenI 🇻🇦 828 106 140ms 18 days ago 410th clockworknazo 828 129 2ms 18 Sep 2022 411th Sakisan 🇧🇪 827 64 1,061ms 30 Jun 2022 412th kg583 🇺🇸 827 139 42ms 17 Nov 2025 413th emplv 🇱🇻 826 101 5ms 3 Jul 2023 413th stefangimmillaro 826 101 5ms 12 Oct 2023 413th edsrzf 🇳🇿 826 101 5ms 7 Oct 2025 416th jared-hughes 826 200 8ms 18 Dec 2024 417th Mandrzejy 🇵🇱 825 134 55ms 13 Sep 2024 418th MeWhenI 🇻🇦 824 69 5ms 13 Aug 2024 419th SirBogman 🇺🇸 823 37 2ms 27 May 2024 419th Yewzir 🇧🇪 823 37 2ms 19 Dec 2024 421st CLOStrophobic 🇮🇹 823 123 8ms 21 Jan 2025 421st kg583 🇺🇸 823 123 8ms 20 Feb 2026 423rd dcgjb 822 67 247ms 14 Feb 2024 424th duckyluuk 🇳🇱 822 75 401ms 29 Aug 2024 425th GrayJoKing 🇦🇺 822 130 2ms 12 Sep 2022 426th Bubbler-4 821 48 33ms 15 Nov 2022 426th stackofbears 821 48 32ms 27 Dec 2023 426th 2bular 821 48 33ms 8 Mar 2026 429th denkyuu1 821 71 519ms 3 days ago 430th jeff-at-tamer-dot-codes 🇺🇸 821 84 11ms 19 May 2023 430th Artemis21 🇬🇧 821 84 11ms 10 Jan 2025 430th Flekay 🇩🇪 821 84 11ms 15 Feb 2026 430th jusaka 821 84 12ms 12 days ago 434th Shanethegamer 🇺🇸 821 112 1ms 20 Apr 2022 435th primo-ppcg 🇹🇭 821 164 25ms 25 Jun 2022 436th pardouin 🇫🇷 820 71 1,321ms 2 Sep 2025 437th Shanethegamer 🇺🇸 820 107 152ms 24 May 2025 438th m-tkach 🇺🇦 820 130 515ms 25 Sep 2025 439th annaproxy 819 94 429ms 19 Mar 2022 440th Irratix 🇳🇱 819 135 412ms 14 May 2022 441st DialFrost 🇸🇬 819 286 140ms 22 Apr 2025 441st frankgraziano 819 286 651ms 31 Jan 2026 443rd Shanethegamer 🇺🇸 818 63 1ms 13 May 2023 444th MeWhenI 🇻🇦 818 102 5ms 26 Nov 2023 445th o0lit3 🇺🇸 817 51 4ms 11 Jan 2022 446th JayXon 🇺🇸 816 55 36ms 25 Feb 2022 447th Shanethegamer 🇺🇸 816 124 7ms 27 Aug 2024 448th GrayJoKing 🇦🇺 815 99 4ms 20 Sep 2023 449th Steffan153 🇫🇮 815 134 36ms 35 mins ago 450th Yewzir 🇧🇪 814 113 1ms 29 Nov 2023 450th drabart 🇵🇱 814 113 2ms 18 Dec 2023 452nd sean-niemann 🇺🇸 814 163 335ms 30 Aug 2023 452nd Yewzir 🇧🇪 814 163 325ms 7 Feb 2024 452nd CaedenHarper 🇨🇦 814 163 326ms 2 Nov 2025 455th itsh01 813 87 12ms 13 Mar 2022 455th AlephSquirrel 813 87 13ms 15 Feb 2023 455th danielphilpottwork 813 87 12ms 20 Dec 2023 458th Shanethegamer 🇺🇸 813 136 86ms 20 Apr 2022 459th saito-ta 🇯🇵 812 32 42ms 19 Aug 2022 459th canissimia 🇦🇶 812 32 41ms 19 Aug 2022 461st m42km 812 85 11ms 24 Oct 2023 461st emgordon154 812 85 11ms 1 Aug 2024 461st JunkIce 812 85 11ms 25 Nov 2024 461st robin-scragg 812 85 11ms 25 Jul 2025 465th DialFrost 🇸🇬 812 118 461ms 27 Nov 2024 466th Yewzir 🇧🇪 811 76 452ms 22 Jun 2024 466th Shanethegamer 🇺🇸 811 76 493ms 10 Dec 2024 468th stefangimmillaro 811 87 2,551ms 24 Nov 2024 468th emgordon154 811 87 2,621ms 6 Mar 2025 470th btnlq 811 125 15ms 12 Jan 2022 471st janbehrens 🇩🇪 810 103 4ms 2 Jul 2023 472nd plcc0 809 125 7ms 23 Mar 2025 473rd GrayJoKing 🇦🇺 809 152 29ms 18 Jul 2023 473rd m-tkach 🇺🇦 809 152 29ms 10 Feb 2026 475th error256 808 132 385ms 21 Nov 2025 476th DialFrost 🇸🇬 807 72 984ms 4 Sep 2025 477th ovs-code 🇩🇪 807 90 65ms 12 Sep 2024 477th primo-ppcg 🇹🇭 807 90 62ms 5 Apr 2025 479th jotslo 🇬🇧 807 107 2ms 17 Jul 2022 480th GrayJoKing 🇦🇺 807 113 401ms 24 Jul 2025 First Prev 401–480 of 1,636 Next Last