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ISBN 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 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 Bytes Time Submitted 400th error256 852 120 6ms 10 Feb 2026 402nd the-zammers 851 132 140ms 1 Oct 2023 403rd JayXon 🇺🇸 850 205 1,624ms 11 days ago 404th sisyphus-ppcg 🇦🇺 849 64 39ms 11 Jan 2022 404th GrayJoKing 🇦🇺 849 64 39ms 10 Feb 2022 406th VictorFordham 849 104 10ms 20 Feb 2023 406th Alex-x90 🇺🇸 849 104 10ms 3 Aug 2023 406th mathisfun271 849 104 11ms 5 Feb 2024 406th EnTerr 849 104 10ms 8 Sep 2024 406th KasperKivimaeki 🇫🇮 849 104 11ms 11 Jul 2025 406th luuumine 🇫🇷 849 104 12ms 31 Oct 2025 406th phSHARP 849 104 11ms 24 days ago 413th edsrzf 🇳🇿 849 147 40ms 26 Mar 2026 414th xsot 🇸🇬 848 55 3ms 6 Jul 2025 415th ovs-code 🇩🇪 848 89 501ms 5 Jul 2024 416th edsrzf 🇳🇿 848 130 39ms 12 days ago 417th edsrzf 🇳🇿 847 84 2,408ms 4 days ago 418th prplz 🇦🇺 847 109 1ms 18 Jan 2022 418th xsot 🇸🇬 847 109 1ms 1 Feb 2024 420th didion0 🇺🇸 846 84 11ms 25 Jan 2022 420th 13x1 🇩🇪 846 84 11ms 15 May 2023 420th biocommando 🇫🇮 846 84 12ms 11 Aug 2023 420th deancureton 846 84 11ms 29 Dec 2024 420th CaedenHarper 🇨🇦 846 84 11ms 22 Aug 2025 425th GrayJoKing 🇦🇺 846 115 9ms 28 Jul 2023 426th ovs-code 🇩🇪 845 114 471ms 26 Nov 2024 427th kaascevich 845 123 123ms 21 Jul 2025 428th lynn 844 124 1,521ms 16 Jan 2022 429th clockworknazo 843 62 1ms 17 Nov 2022 430th DialFrost 🇸🇬 843 66 310ms 10 Oct 2024 431st HumanoidCPU 843 127 507ms 8 Nov 2025 432nd acotis 843 144 171ms 10 Feb 2026 432nd vang1ong7ang 843 144 153ms 19 days ago 434th MeWhenI 🇻🇦 843 158 299ms 7 Jan 2025 435th Sakisan 🇧🇪 842 64 55ms 30 Jun 2022 436th Shanethegamer 🇺🇸 841 92 470ms 26 Mar 2024 437th TFeld00 🇩🇰 841 105 11ms 19 May 2022 437th stefangimmillaro 841 105 11ms 26 Dec 2022 437th betaveros 841 105 10ms 1 Jan 2023 437th 5cw 🇺🇸 841 105 11ms 3 May 2023 437th minhtrancccp 841 105 11ms 26 Sep 2023 437th lifthrasiir 🇰🇷 841 105 11ms 20 Nov 2024 437th qpwoeirut 841 105 12ms 28 Sep 2025 444th drabart 🇵🇱 841 132 64ms 16 Dec 2023 445th sean-niemann 🇺🇸 840 85 145ms 15 days ago 446th MeWhenI 🇻🇦 840 106 140ms 27 Mar 2026 447th Irratix 🇳🇱 840 110 2ms 14 May 2022 447th speles 🇺🇦 840 110 2ms 29 Oct 2023 449th m-tkach 🇺🇦 839 90 530ms 21 Jan 2024 449th sean-niemann 🇺🇸 839 90 443ms 28 Jan 2025 451st SirBogman 🇺🇸 838 37 2ms 27 May 2024 451st emgordon154 838 37 43ms 11 Sep 2024 451st Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 454th 4hg 🇺🇸 838 52 32ms 26 Jul 2023 455th MeWhenI 🇻🇦 838 69 5ms 13 Aug 2024 456th Shanethegamer 🇺🇸 838 159 332ms 20 Apr 2022 457th MeWhenI 🇻🇦 837 90 116ms 20 Oct 2022 458th MeWhenI 🇻🇦 836 65 35ms 7 Dec 2023 459th Natanaelel 🇸🇪 836 85 11ms 7 Feb 2023 459th HumanoidCPU 836 85 10ms 2 Mar 2025 461st edsrzf 🇳🇿 836 97 62ms 7 Oct 2025 462nd lynn 836 148 30ms 18 Jul 2023 463rd jacobly0 🇺🇸 835 104 2ms 11 Sep 2023 464th Alex-x90 🇺🇸 835 133 62ms 8 Aug 2023 464th Yewzir 🇧🇪 835 133 57ms 29 Nov 2023 466th ovs-code 🇩🇪 835 224 1,203ms 18 Apr 2025 467th clockworknazo 834 129 2ms 18 Sep 2022 468th Bulmenisaurus 833 106 11ms 2 Feb 2025 469th prplz 🇦🇺 832 93 465ms 18 Jan 2022 469th hemphen 832 93 427ms 28 Aug 2022 469th feberhard 832 93 493ms 6 Apr 2023 469th sean-niemann 🇺🇸 832 93 432ms 19 Apr 2025 473rd emplv 🇱🇻 832 101 5ms 3 Jul 2023 473rd stefangimmillaro 832 101 5ms 12 Oct 2023 473rd edsrzf 🇳🇿 832 101 5ms 7 Oct 2025 476th Shanethegamer 🇺🇸 832 107 152ms 24 May 2025 477th ZakkkkAttackkkk 🇵🇭 832 111 1ms 9 Nov 2023 477th Szum123321 🇵🇱 832 111 2ms 9 Dec 2023 477th DialFrost 🇸🇬 832 111 1ms 20 Dec 2024 480th emplv 🇱🇻 832 160 328ms 6 Jan 2023 480th KasperKivimaeki 🇫🇮 832 160 345ms 20 Oct 2025 482nd dcgjb 831 67 246ms 14 Feb 2024 483rd pardouin 🇫🇷 831 71 1,412ms 2 Sep 2025 484th jared-hughes 831 200 8ms 18 Dec 2024 485th Shanethegamer 🇺🇸 830 63 1ms 13 May 2023 486th rucin93 🇵🇱 830 86 135ms 14 Mar 2026 487th neel11235813 830 91 502ms 13 Mar 2024 487th kg583 🇺🇸 830 91 441ms 21 Mar 2024 487th bizy-coder 830 91 410ms 1 Apr 2024 487th MeWhenI 🇻🇦 830 91 489ms 24 May 2024 487th duckyluuk 🇳🇱 830 91 498ms 21 Jun 2024 487th AlephSquirrel 830 91 496ms 3 Jul 2024 487th CaedenHarper 🇨🇦 830 91 505ms 30 Nov 2025 494th Mandrzejy 🇵🇱 829 134 63ms 13 Sep 2024 495th GrayJoKing 🇦🇺 828 130 2ms 12 Sep 2022 496th CLOStrophobic 🇮🇹 827 123 8ms 21 Jan 2025 496th kg583 🇺🇸 827 123 8ms 20 Feb 2026 498th quimey 826 107 13ms 7 Mar 2023 498th fourth-bit 826 107 10ms 10 Jul 2024 498th fuzzylojik-golf 🇺🇸 826 107 11ms 19 May 2025 First Prev 401–500 of 1,639 Next Last