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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 Calendar 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 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 Numbrix 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 ArkScript 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 ArkScript 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 Calendar 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 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 Numbrix 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 810ms 24 Sep 2025 1st edsrzf 🇳🇿 0 85 784ms 24 Sep 2025 1st Shanethegamer 🇺🇸 0 85 876ms 24 Sep 2025 1st sean-niemann 🇺🇸 0 85 590ms 25 Sep 2025 1st snoozingnewt 🇨🇦 0 85 893ms 26 Sep 2025 1st namelessiw 0 85 863ms 29 Sep 2025 1st DialFrost 🇸🇬 0 85 767ms 29 Sep 2025 1st CaedenHarper 🇨🇦 0 85 925ms 4 Oct 2025 1st HumanoidCPU 0 85 851ms 8 Nov 2025 1st m-tkach 🇺🇦 0 85 654ms 9 Nov 2025 1st KasperKivimaeki 🇫🇮 0 85 878ms 1 Dec 2025 1st Nyfii 0 85 818ms 1 Dec 2025 13th fuzzylojik-golf 🇺🇸 0 86 904ms 25 Sep 2025 14th voytxt 🇨🇿 0 94 958ms 25 Sep 2025 15th pixelated-pup 0 106 910ms 6 Oct 2025 15th WildTooth 0 106 814ms 9 Oct 2025 17th h3ra993huskp 🇯🇵 0 110 880ms 30 Nov 2025 18th stefangimmillaro 0 113 693ms 26 Nov 2024 18th MeWhenI 🇻🇦 0 113 689ms 29 Jan 2025 18th Natanaelel 🇸🇪 0 113 698ms 3 Feb 2025 18th emgordon154 0 113 683ms 17 Apr 2025 18th Apataras 0 113 671ms 17 Jun 2025 18th RYSF13 🇨🇳 0 113 705ms 5 Jul 2025 18th Macweese 0 113 709ms 3 Aug 2025 18th TeodorDyakov 🇧🇬 0 113 783ms 7 Sep 2025 18th marcuswilcour 0 113 701ms 8 Sep 2025 18th JOrE20 🇺🇸 0 113 486ms 25 Nov 2025 28th Jacob385 0 122 696ms 20 Nov 2024 29th duckyluuk 🇳🇱 0 125 689ms 12 Jan 2025 30th yoshykai 0 126 682ms 27 Mar 2025 31st qpwoeirut 0 137 749ms 7 Feb 2025 32nd ravnskjaer 🇩🇰 0 138 730ms 2 Jan 2025 32nd mohic 🇧🇪 0 138 740ms 8 Jul 2025 34th joshuaxie8 0 141 773ms 8 Jul 2025 35th squid233 0 144 734ms 16 Feb 2025 36th Yewzir 🇧🇪 0 145 728ms 11 Mar 2025 37th PanNessMain 0 160 632ms 10 Mar 2025 38th xyangst 0 165 663ms 14 Feb 2025 39th matejmatik123 🇸🇰 0 171 700ms 16 Aug 2025 40th Benzas01 0 172 774ms 5 Sep 2025 41st DABANANAMAN120 0 175 709ms 26 Jun 2025 42nd kennyhorlander 0 184 676ms 18 Apr 2025 43rd hollowcrystal 0 187 796ms 6 days ago 44th israeltobias 0 227 914ms 7 Oct 2025 44th Babafaba 0 227 813ms 15 Oct 2025 44th luuumine 🇫🇷 0 227 779ms 16 Oct 2025 44th Openstreetmapler 0 227 866ms 30 Oct 2025 44th Mukundan314 0 227 707ms 24 Nov 2025 44th ivan-saratovskii 0 227 717ms 16 days ago 44th Mefred 0 227 789ms 13 days ago 51st targrik 0 323 697ms 14 Feb 2025 51st gigaprofisi 🇺🇸 0 323 694ms 3 Mar 2025 51st retrohun 0 323 705ms 1 Apr 2025 51st Bpc-CPU 0 323 639ms 12 Jul 2025 51st Vexxter9 🇳🇱 0 323 672ms 21 Aug 2025 51st Matter1024 🇮🇳 0 323 718ms 9 Sep 2025 1–56 of 56