Collatz in Python 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling 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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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st khvdm 1,000 57 42ms 15 Sep 2024 2nd Lydxn 🇨🇦 983 58 51ms 4 May 2022 2nd JayXon 🇺🇸 983 58 48ms 7 Mar 2023 4th GrayJoKing 🇦🇺 966 59 19ms 15 Nov 2022 5th ovs-code 🇩🇪 950 60 19ms 4 May 2022 5th m-tkach 🇺🇦 950 60 18ms 4 May 2022 5th btnlq 950 60 24ms 5 May 2022 5th orthoplex 🇨🇽 950 60 24ms 9 Oct 2022 5th FlorianCassayre 🇫🇷 950 60 24ms 7 Nov 2022 5th SirBogman 🇺🇸 950 60 20ms 20 Nov 2022 5th QuincyNash 🇺🇸 950 60 21ms 1 Dec 2022 5th Steffan153 🇫🇮 950 60 19ms 19 Dec 2022 5th SirFireball3521 950 60 17ms 26 Jan 2023 5th Shanethegamer 🇺🇸 950 60 24ms 25 May 2023 5th CornerMercury 🇬🇧 950 60 19ms 19 Jun 2023 5th ndren 950 60 24ms 2 Aug 2023 5th kg583 🇺🇸 950 60 64ms 14 Aug 2023 5th Just4FunCoder 950 60 23ms 17 Feb 2024 5th HumanoidCPU 950 60 21ms 6 May 2024 5th sean-niemann 🇺🇸 950 60 22ms 10 Jul 2024 5th pardouin 🇫🇷 950 60 21ms 11 Jul 2024 5th dokutan 950 60 20ms 15 Aug 2024 5th jatloe 950 60 29ms 26 Aug 2024 5th emgordon154 950 60 20ms 6 Sep 2024 5th starfihs 950 60 18ms 12 Oct 2024 5th CaedenHarper 🇨🇦 950 60 20ms 3 Nov 2024 5th 5quiwyrm 950 60 19ms 12 Nov 2024 5th plcc0 950 60 18ms 26 Mar 2025 5th yujh-yujh 🇬🇸 950 60 19ms 28 Mar 2025 5th albanian-laundromat 950 60 19ms 12 Apr 2025 5th Mukundan314 950 60 23ms 17 Apr 2025 5th fuzzylojik-golf 🇺🇸 950 60 22ms 1 Sep 2025 33rd Irratix 🇳🇱 934 61 49ms 7 May 2022 33rd TFeld00 🇩🇰 934 61 31ms 17 May 2022 33rd hallvabo 🇳🇴 934 61 20ms 4 Sep 2022 33rd DialFrost 🇸🇬 934 61 26ms 19 Dec 2022 33rd anter69 🇭🇺 934 61 21ms 19 Dec 2022 33rd Alex-x90 🇺🇸 934 61 22ms 27 Dec 2022 33rd commandblockguy 🇺🇸 934 61 19ms 22 Aug 2023 33rd fgrosshans 🇫🇷 934 61 20ms 22 Jul 2024 33rd duckyluuk 🇳🇱 934 61 24ms 15 Aug 2024 33rd rucin93 🇵🇱 934 61 19ms 31 May 2025 33rd katss2 934 61 31ms 17 Aug 2025 44th shellbertt 🇨🇦 919 62 20ms 4 May 2022 44th ZakkkkAttackkkk 🇵🇭 919 62 20ms 5 May 2022 44th annaproxy 919 62 21ms 8 Jun 2022 44th bob-th 919 62 27ms 9 Jul 2022 44th btjones0 919 62 25ms 15 Jul 2022 44th tri1212 🇻🇳 919 62 20ms 18 Jul 2022 44th fredrik-bakke 🇳🇴 919 62 24ms 5 Oct 2022 44th jakobkordez 🇸🇮 919 62 27ms 19 Oct 2022 44th Fishron 919 62 27ms 29 Nov 2022 44th KatieLG 🇬🇧 919 62 25ms 11 Dec 2022 44th ItsMeNoobieboy 919 62 20ms 20 Dec 2022 44th firegene 🇮🇪 919 62 21ms 3 Jan 2023 44th ljweel 919 62 18ms 13 Feb 2023 44th 2011-Chan-Ethan 919 62 20ms 9 Jul 2023 44th elgan65536 919 62 21ms 18 Nov 2023 44th Dataen 919 62 20ms 16 Jan 2024 44th Yewzir 🇧🇪 919 62 51ms 5 Apr 2024 44th cuboids 919 62 24ms 11 Jul 2024 44th wuzekai518 919 62 33ms 26 Jul 2024 44th abhishekg999 919 62 57ms 17 Sep 2024 44th lifthrasiir 🇰🇷 919 62 19ms 16 Nov 2024 44th Artemis21 🇬🇧 919 62 20ms 17 Jan 2025 44th lolgeny 919 62 25ms 22 Feb 2025 44th keelimeguy 🇺🇸 919 62 20ms 15 May 2025 44th Flekay 🇩🇪 919 62 25ms 19 Jun 2025 44th DoubleUynn 919 62 19ms 25 Jun 2025 70th P-Quentin 🇫🇷 905 63 19ms 3 Aug 2022 70th kaptsanovb 905 63 25ms 20 Apr 2023 70th fkantelberg 905 63 21ms 14 Jul 2023 70th snoozingnewt 🇺🇸 905 63 28ms 10 Sep 2023 70th VictorStenvers 🇳🇱 905 63 24ms 13 Nov 2023 70th 1231234md5 🇨🇳 905 63 21ms 14 Dec 2023 1–75 of 791 Next Last