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 Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number 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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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 526th bonevbs 687 83 19ms 8 May 2022 526th feherd 687 83 18ms 20 May 2022 526th pbleich 687 83 21ms 24 Aug 2022 526th RoscoeSmith 687 83 23ms 20 Nov 2022 526th amadeusdotpng 687 83 21ms 22 Apr 2023 526th ross-i 687 83 16ms 5 Jul 2023 526th anonymaew 687 83 27ms 2 Aug 2023 526th mstang107 687 83 22ms 20 Dec 2023 526th LHLaurini 🇧🇷 687 83 18ms 26 Jun 2024 526th C0derX3 🇺🇸 687 83 19ms 18 Sep 2024 526th ComputerKWasTaken 🇺🇸 687 83 23ms 20 Jan 2025 526th Vexxter9 🇳🇱 687 83 57ms 4 Feb 2025 526th CodyKlingler 687 83 23ms 7 Feb 2025 526th OyuDays 687 83 18ms 17 Mar 2025 526th julianreece 687 83 22ms 29 Apr 2025 526th rustykitty 🇺🇸 687 83 22ms 27 days ago 542nd Feniske 🇫🇷 679 84 18ms 7 Oct 2022 542nd Eilonlif 🇮🇱 679 84 22ms 29 Mar 2023 542nd mhsaul 679 84 16ms 11 Apr 2023 542nd Phyisis 679 84 23ms 30 Apr 2024 542nd MaxCastella 🇫🇷 679 84 21ms 11 Oct 2024 542nd SURAJMITTAL 679 84 16ms 17 Dec 2024 542nd simplylu 679 84 18ms 5 Jan 2025 542nd WillowWispy 679 84 21ms 14 Mar 2025 542nd VedJosh 679 84 24ms 3 May 2025 542nd hetz2625 679 84 23ms 4 May 2025 552nd aazuspan 671 85 20ms 15 Jun 2022 552nd myleopard 671 85 22ms 20 Jul 2022 552nd LukasFolwarczny 🇨🇿 671 85 23ms 16 Sep 2022 552nd aaardwark 671 85 26ms 1 Jun 2025 552nd kmathis22 671 85 19ms 10 Sep 2025 557th MichaelMBradley 🇨🇦 663 86 22ms 5 Jun 2022 557th Lemonz-13223 663 86 19ms 21 Sep 2022 557th Bodo171 663 86 25ms 24 Nov 2022 557th shibacho 🇯🇵 663 86 19ms 25 Nov 2022 557th Vaekor 663 86 18ms 9 Jul 2023 557th LeoVanderSteege 663 86 16ms 18 Nov 2023 557th Pale-Vessel 663 86 17ms 18 Dec 2023 557th tik25 663 86 33ms 28 Mar 2024 557th willschremmer 663 86 16ms 27 Apr 2024 557th jamiloBBKing 663 86 22ms 27 Jan 2025 557th AsishKunta 663 86 19ms 1 Apr 2025 557th Hemanthred2005 663 86 18ms 1 Apr 2025 557th Voltrifrodec 🇸🇰 663 86 23ms 19 Apr 2025 557th lurey99 663 86 16ms 23 Apr 2025 557th Alban-Boissard 663 86 24ms 14 Jun 2025 557th Arkadios200 663 86 25ms 21 Sep 2025 573rd ToE42 655 87 16ms 19 Oct 2022 573rd omri2001 655 87 18ms 19 Oct 2022 573rd Skallos-s 655 87 22ms 5 Dec 2022 573rd damoc1es 655 87 17ms 16 Apr 2023 573rd michelebastione 🇮🇹 655 87 24ms 20 Dec 2023 573rd clampcorder 655 87 17ms 24 Jan 2024 573rd GitQuick 655 87 19ms 23 Feb 2024 573rd EricSchraf 655 87 18ms 21 Mar 2024 573rd PotatoSaladOverlord 655 87 18ms 21 May 2025 573rd Ibozz91 655 87 22ms 8 Jun 2025 573rd Aquateraneal 655 87 17ms 6 days ago 584th Andre3582 648 88 21ms 29 Oct 2022 584th Darknova2468 648 88 18ms 20 Nov 2022 584th Solsticely 648 88 20ms 20 Nov 2022 584th goGuru 648 88 18ms 21 Dec 2022 584th msbranicky 648 88 35ms 9 Aug 2023 584th gussy420 648 88 17ms 28 Oct 2023 584th Shynif 648 88 20ms 21 Feb 2024 584th asterized 648 88 18ms 24 Aug 2024 584th hippopotam00sehead 🇨🇦 648 88 19ms 11 Sep 2024 584th 08jne01 648 88 16ms 21 Nov 2024 584th davidludwik2370 648 88 18ms 14 Sep 2025 595th lovernj 640 89 23ms 23 Aug 2022 595th Roj 640 89 22ms 20 Nov 2022 595th aeonsablaze 640 89 20ms 22 Nov 2022 595th buddyw 640 89 16ms 9 Mar 2023 595th VV1Git 640 89 23ms 28 Mar 2023 595th dranjohn 640 89 20ms 17 Sep 2023 First Prev 526–600 of 804 Next Last