The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
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Achievements Cheevos Holes Languages Medals Miscellaneous All 🍃 Turn over a New Leaf 📺 Prime Time 🥰 Hugs and Kisses 🥧 Pi Day 🌌 May the 4ᵗʰ Be with You 🍕 How about Second Pi? 🇺🇸 Independence Day 🎂 Happy Birthday, Code Golf 🧛 Vampire Byte 🎅 Twelvetide 🗳️ Like, Comment, Subscribe ⭐ My God, It’s Full of Stars 💾 Patches Welcome 💼 Interview Ready 🧙 Alchemist 🥣 Alphabet Soup 📚 Archivist 🪛 Assembly Required 🐦 Bird Is the Word ☕ Caffeinated 🎳 COBOWL 🔟 Count to Ten 👄 Dammit, Janet! 🔩 Down to the Metal 🐘 ElePHPant in the Room 🏥 Emergency Room 😈 Evil Scheme 🐟 Fish ’n’ Chips 🚩 Flag Those Mines 🦄 Full Stack Dev 🏞️ Go Forth! 📫 Going Postal 🍀 Happy-Go-Lucky 🍯 Hextreme Agony 🐎 Horse of a Different Color 🧠 Inception 💍 Jeweler 😛 Just Kidding 🐑 Mary Had a Little Lambda 🧭 Never Eat Shredded Wheat 📴 Off-the-grid 🐍 Ouroboros 🔠 Pangramglot 🍹 Piña Colada 🛟 Ring Toss 🎮 S-box 360 💬 Simon Sed 🥢 Sinosphere 🪞 Solve Quine 🎺 Sounds Quite Nice 🧑💻 TeXnical Know-how 🐪 Tim Toady ⌨️ Typesetter 🗜 Under Pressure 💡 Watt Are You Doing? 🏛️ When in Rome ❌ X-Factor 🌠 Zoodiac Signs 🎣 Catch of the Week 🏰 Hold the Fort(night) 🌝 Once in a Blue Moon 🪲 Eight Days a Week 🪱 Early Bird Catches the Worm 📜 Out of Spec 🍷 Aged like Fine Wine ☣️ Biohazard 🧪 Black-box Testing 🌈 Different Strokes 🔦 Double-slit Experiment 🏝️ No Man Is an Island 🔣 Polyglot 🍖 Polyglutton 🕉️ Omniglot 🍱 Omniglutton 🦋 Real Programmers 🗑️ rm -rf 📕 RTFM 🦥 Slowcoach 🥪 Smörgåsbord 🥡 Takeout 🧶 tl;dr 👋 Hello, World! 🏌️ Fore! 🎸 Up to Eleven 🍞 Baker’s Dozen 🍺 The Watering Hole 🃏 Blackjack 🔞 Rule 34 😴 Forty Winks 👍 DON’T PANIC! 🎯 Bullseye 🚗 Gone in 60 Holes 👅 Cunning Linguist 🚢 Phileas Fogg 🖥️ x86 📐 Right On! 🎈 Neunundneunzig Luftballons 💯 Centenarian 🦫 Busy Beaver 🪄 Disappearing Act ❗ Five! 👾 8-Bit Wonder 👁️ Big Brother 🐉 It’s Over 9000! 🐋 Twenty Kiloleagues 🏃 Marathon Runner 🪦 0xDEAD ⛲ Overflowing 🚀 Into Space! All Date Specific Turn over a New Leaf 🍃 Prime Time 📺 Hugs and Kisses 🥰 Pi Day 🥧 May the 4ᵗʰ Be with You 🌌 How about Second Pi? 🍕 Independence Day 🇺🇸 Happy Birthday, Code Golf 🎂 Vampire Byte 🧛 Twelvetide 🎅 GitHub Like, Comment, Subscribe 🗳️ My God, It’s Full of Stars ⭐ Patches Welcome 💾 Hole/Lang Specific Interview Ready 💼 Alchemist 🧙 Alphabet Soup 🥣 Archivist 📚 Assembly Required 🪛 Bird Is the Word 🐦 Caffeinated ☕ COBOWL 🎳 Count to Ten 🔟 Dammit, Janet! 👄 Down to the Metal 🔩 ElePHPant in the Room 🐘 Emergency Room 🏥 Evil Scheme 😈 Fish ’n’ Chips 🐟 Flag Those Mines 🚩 Full Stack Dev 🦄 Go Forth! 🏞️ Going Postal 📫 Happy-Go-Lucky 🍀 Hextreme Agony 🍯 Horse of a Different Color 🐎 Inception 🧠 Jeweler 💍 Just Kidding 😛 Mary Had a Little Lambda 🐑 Never Eat Shredded Wheat 🧭 Off-the-grid 📴 Ouroboros 🐍 Pangramglot 🔠 Piña Colada 🍹 Ring Toss 🛟 S-box 360 🎮 Simon Sed 💬 Sinosphere 🥢 Solve Quine 🪞 Sounds Quite Nice 🎺 TeXnical Know-how 🧑💻 Tim Toady 🐪 Typesetter ⌨️ Under Pressure 🗜 Watt Are You Doing? 💡 When in Rome 🏛️ X-Factor ❌ Zoodiac Signs 🌠 Holes of the Week Catch of the Week 🎣 Hold the Fort(night) 🏰 Once in a Blue Moon 🌝 Eight Days a Week 🪲 Early Bird Catches the Worm 🪱 Out of Spec 📜 Miscellaneous Aged like Fine Wine 🍷 Biohazard ☣️ Black-box Testing 🧪 Different Strokes 🌈 Double-slit Experiment 🔦 No Man Is an Island 🏝️ Polyglot 🔣 Polyglutton 🍖 Omniglot 🕉️ Omniglutton 🍱 Real Programmers 🦋 rm -rf 🗑️ RTFM 📕 Slowcoach 🦥 Smörgåsbord 🥪 Takeout 🥡 tl;dr 🧶 Total Holes Hello, World! 👋 Fore! 🏌️ Up to Eleven 🎸 Baker’s Dozen 🍞 The Watering Hole 🍺 Blackjack 🃏 Rule 34 🔞 Forty Winks 😴 DON’T PANIC! 👍 Bullseye 🎯 Gone in 60 Holes 🚗 Cunning Linguist 👅 Phileas Fogg 🚢 x86 🖥️ Right On! 📐 Neunundneunzig Luftballons 🎈 Centenarian 💯 Busy Beaver 🦫 Disappearing Act 🪄 Five! ❗ 8-Bit Wonder 👾 Total Points Big Brother 👁️ It’s Over 9000! 🐉 Twenty Kiloleagues 🐋 Marathon Runner 🏃 0xDEAD 🪦 Overflowing ⛲ Into Space! 🚀 # Golfer Count Earned 309th LukeBridges 🇬🇧 31 / 109 17 Feb 2026 309th Protothor 31 / 109 2 days ago 323rd rowboat1 30 / 109 17 Apr 2023 323rd clockworknazo 30 / 109 4 Jul 2024 323rd pandapawskat 30 / 109 4 Jul 2024 323rd pschmid0 🇺🇸 30 / 109 4 Jul 2024 323rd SirFireball3521 30 / 109 4 Jul 2024 323rd Starwort 🇬🇧 30 / 109 4 Jul 2024 323rd xkacer 🇨🇿 30 / 109 4 Jul 2024 323rd jupj 🇫🇮 30 / 109 14 Mar 2025 323rd SpareManiKatti 30 / 109 7 Apr 2025 323rd b10011 🇫🇮 30 / 109 4 May 2025 323rd vlpx 🇫🇮 30 / 109 27 Jun 2025 323rd moustave 30 / 109 19 Aug 2025 323rd jacekwladzinski 30 / 109 31 Oct 2025 323rd CutSandstone 30 / 109 4 Dec 2025 323rd Artemis21 🇬🇧 30 / 109 3 Feb 2026 323rd YAJUE114514 30 / 109 19 days ago 323rd jkelly467 30 / 109 11 days ago 323rd rhdqor213 30 / 109 8 days ago 323rd PotatoSaladOverlord 30 / 109 2 days ago 342nd j-Ewan 29 / 109 17 Apr 2023 342nd MichaelMBradley 🇨🇦 29 / 109 17 Apr 2023 342nd p-vf 🇨🇭 29 / 109 2 Nov 2023 342nd 386asm 🇺🇸 29 / 109 4 Jul 2024 342nd bbakersmith 29 / 109 4 Jul 2024 342nd BBoehm 🇩🇪 29 / 109 4 Jul 2024 342nd cbrt-x 29 / 109 4 Jul 2024 342nd Eilonlif 🇮🇱 29 / 109 4 Jul 2024 342nd Indivicivet 29 / 109 4 Jul 2024 342nd jhpaques 🇫🇷 29 / 109 4 Jul 2024 342nd QuincyNash 🇺🇸 29 / 109 4 Jul 2024 342nd JGDoerrer 29 / 109 17 Jul 2024 342nd 5quiwyrm 29 / 109 1 Feb 2025 342nd yoshykai 29 / 109 10 Apr 2025 342nd stertooy 🇧🇪 29 / 109 9 Jun 2025 342nd codingisgreatbutiamnot 29 / 109 14 Jul 2025 342nd 051 🇸🇬 29 / 109 8 Jan 2026 342nd Carlos-EAC 29 / 109 1 Feb 2026 360th RustemB 🇷🇺 28 / 109 17 Apr 2023 360th amollberg 🇸🇪 28 / 109 4 Jul 2024 360th billings7 🇬🇧 28 / 109 4 Jul 2024 360th ericlangedijk 🇸🇮 28 / 109 4 Jul 2024 360th Frowny 28 / 109 4 Jul 2024 360th hellwue 28 / 109 10 Sep 2024 360th jaxmattfair 🇺🇸 28 / 109 4 Jun 2025 360th za3k 28 / 109 22 Jul 2025 360th fkantelberg 28 / 109 22 Jul 2025 360th Zhenyu-Bo 28 / 109 1 Aug 2025 360th vgamula 🇺🇦 28 / 109 5 Aug 2025 360th postie77 28 / 109 28 Oct 2025 360th TeodorDyakov 🇧🇬 28 / 109 19 Jan 2026 360th OSYCh314 🇦🇺 28 / 109 16 Feb 2026 360th starfihs 28 / 109 19 Feb 2026 360th tailorspy 28 / 109 19 days ago 360th MostParsingVex 28 / 109 6 days ago 360th SectorCorruptor 28 / 109 40 hours ago 378th shibacho 🇯🇵 27 / 109 17 Apr 2023 378th LogicalJoe 27 / 109 6 Sep 2023 378th Codsilla 🇨🇦 27 / 109 3 Nov 2023 378th boxjelly 27 / 109 4 Jul 2024 378th hamhub7 27 / 109 4 Jul 2024 378th jaredcrystal 🇺🇸 27 / 109 4 Jul 2024 378th jfallon1997 27 / 109 4 Jul 2024 378th RDShah 27 / 109 4 Jul 2024 378th Sp3000 🇦🇺 27 / 109 4 Jul 2024 378th uttumuttu 🇫🇮 27 / 109 30 Sep 2024 378th MateuszPietrzak 🇵🇱 27 / 109 16 Nov 2024 378th Mandrzejy 🇵🇱 27 / 109 22 Nov 2024 378th azure-blondon 27 / 109 9 Dec 2024 378th eranws 27 / 109 23 Dec 2024 378th qwjhvbxi 27 / 109 4 Feb 2025 378th chartung17 27 / 109 7 Apr 2025 378th janlelis 27 / 109 24 Apr 2025 378th fgrosshans 🇫🇷 27 / 109 4 May 2025 378th brimstonetrader 27 / 109 6 Jul 2025 378th b-illy 🇬🇧 27 / 109 16 Jul 2025 378th csharpython 27 / 109 31 Aug 2025 378th ravnskjaer 🇩🇰 27 / 109 6 Sep 2025 378th Pyro569 27 / 109 29 Sep 2025 First Prev 321–400 of 11,855 Next Last