🧩 Daily Challenge! Level 4 #2456 – Test your parity logic! 🧠
▲ 3 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #2456 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=2456&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 16 hours ago
▲ 2 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #43067 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=43067&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 1 day ago
▲ 4 r/greyisodd+1 crossposts

Daily Challenge! Level 4 #22710 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=22710&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 3 days ago
▲ 3 r/greyisodd+1 crossposts

Daily Challenge! Level 4 #5937 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=5937&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 4 days ago
▲ 3 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #9509 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=9509&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 5 days ago

Feedback: Should we add "Pencil Marks" / Candidate Notes to Grey is Odd? ✏️🧩

Hi everyone! 👋

First of all, thank you all so much for the engagement, strategy sharing, and daily completion times. The community support lately has been amazing!

Recently, a few players (shoutout to u/eleesia33 and u/pattybutty) brought up a feature request: adding pencil marks, candidate notes, or color-coding to mark hypotheticals or possible dot placements on cells.

Before deciding anything, I wanted to share my perspective as the creator — along with a personal story — and open the floor to hear what you all think!

A Personal Story from Paper Sudoku 📝

To be completely transparent, my hesitation comes from my own experience playing Sudoku on paper (and full disclosure: I’m far from an expert at it!).

Whenever I get stuck on paper, I often get tempted to try my luck and jot down candidate numbers to test scenarios. But almost every single time I do that, I pay a heavy price: tedious erasing, messy corrections over corrections, and a completely ruined grid!

That physical friction and the annoyance of erasing actually serves a purpose: it forces me to stop guessing and hunt for the true, elegant logical deduction instead.

The Digital Dilemma & The "Undo" Feature 🧠

On paper, guessing costs effort and leaves a mess. In a digital interface, testing paths is much easier.

In fact, we already have the Undo button, which provides a safety net for light exploration — if you test a move and hit a contradiction, you can easily backtrack with a single click.

My main worry with adding dedicated candidate notes on top of this is:

Trial & Error vs. Pure Deduction: Making scenario-testing too effortless risks shifting the experience from pure parity logic into rapid guessing.

Keeping the Grid Clean: Part of the game's identity is a minimalist, uncluttered board where you rely on mental deduction.

What do you think? 🤔

Do you prefer keeping the grid clean, relying entirely on pure mental logic and parity rules?

Does the current Undo button offer enough of a safety net, or would candidate notes truly enhance your experience?

If we ever considered a note system, is there a way to do it without encouraging trial-and-error?

Drop your thoughts in the comments below — I’m really curious to read everyone’s perspective!

— Giovanni

reddit.com
u/playgreyisodd — 5 days ago
▲ 4 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #41579 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=41579&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

3. Il Commento per il C

u/playgreyisodd — 6 days ago
▲ 4 r/greyisodd+1 crossposts

Daily Challenge! Level 4 #35164 (Tricky one today! ⚠️) – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=35164&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Fair warning: Today’s grid (#35164) is particularly tricky! It has a few subtle parity traps that can easily catch you off guard if you rush, so take your time and watch out for those hidden logical steps.

Work through the region constraints, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below — let me know if this one gave you a hard time!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 7 days ago
▲ 4 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #3196 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=3196&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 8 days ago
▲ 5 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #9459 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=9459&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 9 days ago
▲ 4 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #30555 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=30555&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 10 days ago
▲ 4 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #17851 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=17851&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 11 days ago
▲ 6 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #3373 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=3373&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 12 days ago
▲ 3 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #21876 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=21876&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 grid for your daily logic session.

Work through the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step using pure deduction.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 13 days ago
▲ 7 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #38752 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=38752&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Here is today's 7x7 Level 4 puzzle for your daily logic session.

Focus on the parity constraints across the grey and white regions, systematically match the row and column targets, and clear the grid step by step. Standard pure deduction—no guessing needed.

Feel free to post your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic challenges.

— Giovanni

u/playgreyisodd — 14 days ago
▲ 4 r/greyisodd+1 crossposts

🧩 Daily Challenge! Level 4 #21125 – Test your parity logic! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=21125&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Today's 7x7 grid brings a solid Level 4 logic layout to solve.

Work through the parity constraints between the grey and white regions, deduce the exact placements for each row and column target, and build your solution step by step. No guessing required—just clean, direct deduction.

When you're done, share your completion time, restarts, and undos in the comments below!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button to stay updated with daily logic puzzles.

— Giovanni

u/playgreyisodd — 15 days ago
▲ 4 r/greyisodd+1 crossposts

🔥 Logic Challenge! 🧩 Level 4 #41330 – Only for true logic masterminds! 🧠💀

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=41330&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Fair warning: today's Level 4 grid (#41330) is exceptionally tough.

This 7x7 setup leaves zero room for error. The parity constraints between grey and white regions are tightly interwoven, requiring deep deduction and strict logical foresight right from step one. One misstep or early guess will lead straight to a dead end!

Take your time, analyze how the odd/even rules force the row and column totals, and see if you have what it takes to crack it without hitting restart.

Once you beat it (or if it beats you!), drop your Total Battle Time, Restarts, and Undos in the comments. Let’s see who manages to survive today’s grid!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button if you love a pure logic grind. No guessing, just pure deduction.

— Giovanni

u/playgreyisodd — 16 days ago
▲ 3 r/greyisodd+1 crossposts

🔥 Hardcore Logic Challenge! 🧩 Level 4 #31295 – Only for true logic masterminds! 🧠💀

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=31295&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Fair warning: today's Level 4 grid (#31295) is exceptionally tough.

This 7x7 setup leaves zero room for error. The parity constraints between grey and white regions are tightly interwoven, requiring deep deduction and strict logical foresight right from step one. One misstep or early guess will lead straight to a dead end!

Take your time, analyze how the odd/even rules force the row and column totals, and see if you have what it takes to crack it without hitting restart.

Once you beat it (or if it beats you!), drop your Total Battle Time, Restarts, and Undos in the comments. Let’s see who manages to survive today’s grid!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button if you love a pure logic grind. No guessing, just pure deduction.

— Giovanni

u/playgreyisodd — 17 days ago
▲ 4 r/greyisodd+1 crossposts

🔥 Hardcore Logic Challenge! 🧩 Level 4 #27807 – Only for true logic masterminds! 🧠

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=27807&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Fair warning: today's Level 4 grid (#27807) is exceptionally tough.

This 7x7 setup leaves zero room for error. The parity constraints between grey and white regions are tightly interwoven, requiring deep deduction and strict logical foresight right from step one. One misstep or early guess will lead straight to a dead end!

Take your time, analyze how the odd/even rules force the row and column totals, and see if you have what it takes to crack it without hitting restart.

Once you beat it (or if it beats you!), drop your Total Battle Time, Restarts, and Undos in the comments. Let’s see who manages to survive today’s grid!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button if you love a pure logic grind. No guessing, just pure deduction.

— Giovanni

u/playgreyisodd — 18 days ago
▲ 6 r/greyisodd+1 crossposts

⛰️ Steep Climb Ahead! 🧩 Level 4 #17519 – A brutal start with a rewarding smooth finish! 🧠 downhill

🕹️ CLICK HERE TO PLAY: https://www.greyisodd.com/?size=7x7&level=liv4&id=17519&utm_source=reddit&utm_medium=social&utm_campaign=daily_puzzle

Today’s Level 4 grid (#17519) is a classic steep uphill grind at first, followed by a smooth downhill finish!

The opening moves are tough and unforgiving. You’ll need to put in some serious logical work to crack the initial parity bottlenecks in this 7x7 layout. Don't let the steep start discourage you — once you unlock that crucial first break, everything begins to fall into place smoothly.

Patience is key: analyze the row and column targets, enforce the grey/white region rules, and push through the rough start to enjoy the slide to the solution!

When you reach the finish line, drop your Total Battle Time, Restarts, and Undos in the comments. Let us know how long it took you to conquer the peak!

📖 QUICK RULES:

  • Numbers: Total dots in that row or column.
  • White Areas: Must have an EVEN number of dots (0, 2, 4...).
  • Grey Areas: Must have an ODD number of dots (1, 3, 5...).

Join the Community!

Hit the "Join" button if you love a pure logic grind. No guessing, just deduction.

— Giovanni

u/playgreyisodd — 19 days ago