Tutorial in Java 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 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 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 Calendar 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 Multitap Input NFA Simulator 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 Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Calendar 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 Multitap Input NFA Simulator 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 Chars Time Submitted 1st GolfingSuccess 🇬🇷 0 85 692ms 24 Sep 2025 1st edsrzf 🇳🇿 0 85 926ms 24 Sep 2025 1st Shanethegamer 🇺🇸 0 85 769ms 24 Sep 2025 1st sean-niemann 🇺🇸 0 85 749ms 25 Sep 2025 1st snoozingnewt 🇨🇦 0 85 825ms 26 Sep 2025 1st namelessiw 0 85 790ms 29 Sep 2025 1st DialFrost 🇸🇬 0 85 872ms 29 Sep 2025 1st CaedenHarper 🇨🇦 0 85 861ms 4 Oct 2025 1st HumanoidCPU 0 85 734ms 8 Nov 2025 1st m-tkach 🇺🇦 0 85 771ms 9 Nov 2025 1st KasperKivimaeki 🇫🇮 0 85 788ms 7 days ago 1st Nyfii 0 85 706ms 7 days ago 13th fuzzylojik-golf 🇺🇸 0 86 1,005ms 25 Sep 2025 14th voytxt 🇨🇿 0 94 950ms 25 Sep 2025 15th ThePixelatedCat 0 106 964ms 6 Oct 2025 15th WildTooth 0 106 788ms 9 Oct 2025 17th h3ra993huskp 🇯🇵 0 110 799ms 9 days ago 18th stefangimmillaro 0 113 695ms 26 Nov 2024 18th MeWhenI 🇻🇦 0 113 732ms 29 Jan 2025 18th Natanaelel 🇸🇪 0 113 699ms 3 Feb 2025 18th emgordon154 0 113 678ms 17 Apr 2025 18th Apataras 0 113 704ms 17 Jun 2025 18th RYSF13 🇨🇳 0 113 750ms 5 Jul 2025 18th Macweese 0 113 686ms 3 Aug 2025 18th TeodorDyakov 🇧🇬 0 113 707ms 7 Sep 2025 18th marcuswilcour 0 113 669ms 8 Sep 2025 18th JOrE20 🇺🇸 0 113 561ms 13 days ago 28th Jacob385 0 122 712ms 20 Nov 2024 29th duckyluuk 🇳🇱 0 125 698ms 12 Jan 2025 30th yoshykai 0 126 715ms 27 Mar 2025 31st qpwoeirut 0 137 714ms 7 Feb 2025 32nd ravnskjaer 🇩🇰 0 138 706ms 2 Jan 2025 32nd mohic 🇧🇪 0 138 705ms 8 Jul 2025 34th joshuaxie8 0 141 717ms 8 Jul 2025 35th squid233 0 144 685ms 16 Feb 2025 36th Yewzir 🇧🇪 0 145 687ms 11 Mar 2025 37th PanNessMain 0 160 691ms 10 Mar 2025 38th xyangst 0 165 671ms 14 Feb 2025 39th matejmatik123 🇸🇰 0 171 743ms 16 Aug 2025 40th Benzas01 0 172 749ms 5 Sep 2025 41st DABANANAMAN120 0 175 678ms 26 Jun 2025 42nd kennyhorlander 0 184 731ms 18 Apr 2025 43rd israeltobias 0 227 817ms 7 Oct 2025 43rd Babafaba 0 227 825ms 15 Oct 2025 43rd luuumine 🇫🇷 0 227 893ms 16 Oct 2025 43rd Openstreetmapler 0 227 804ms 30 Oct 2025 43rd Mukundan314 0 227 724ms 14 days ago 48th targrik 0 323 681ms 14 Feb 2025 48th gigaprofisi 🇺🇸 0 323 669ms 3 Mar 2025 48th retrohun 0 323 677ms 1 Apr 2025 48th Bpc-CPU 0 323 718ms 12 Jul 2025 48th Vexxter9 🇳🇱 0 323 665ms 21 Aug 2025 48th Matter1024 🇮🇳 0 323 659ms 9 Sep 2025 1–53 of 53