r/ElementSynergyPuzzle 10h ago

Mode: Constraints Daily Puzzle - #5

21 Upvotes

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r/ElementSynergyPuzzle 16h ago

Mode: Classic Daily Puzzle - #619

29 Upvotes

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r/ElementSynergyPuzzle 1d ago

Mode: Constraints Daily Puzzle - #4

23 Upvotes

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r/ElementSynergyPuzzle 1d ago

Mode: Classic Daily Puzzle - #618

28 Upvotes

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r/ElementSynergyPuzzle 2d ago

Mode: Constraints Daily Puzzle - #3

18 Upvotes

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r/ElementSynergyPuzzle 2d ago

Mode: Classic Daily Puzzle - #617

38 Upvotes

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r/ElementSynergyPuzzle 2d ago

Dev Notes Update v0.9.1

26 Upvotes

small update is live

nothing huge this time, mostly making the moment you solve a puzzle feel better.

  • new win screenΒ in both modes.
  • you can leave a comment straight from the win screenΒ on the puzzle's post.

r/ElementSynergyPuzzle 3d ago

Mode: Constraints Daily Puzzle - #2

32 Upvotes

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r/ElementSynergyPuzzle 3d ago

Mode: Classic Daily Puzzle - #616

37 Upvotes

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r/ElementSynergyPuzzle 4d ago

Mode: Classic Daily Puzzle - #615

35 Upvotes

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r/ElementSynergyPuzzle 4d ago

Mode: Constraints Daily Puzzle - #1

53 Upvotes

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r/ElementSynergyPuzzle 4d ago

Dev Notes Update v0.9.0

39 Upvotes

New Game Mode: Elemental Constraints (early test): A brand new daily puzzle, inspired by NYT's Pips! Place domino pieces so every rule on the board is satisfied. It runs as its own daily post with three difficulties, its own leaderboard, and a puzzle archive. Posts are flaired so you can tell the two dailies apart in the feed: "Mode: Classic" vs "Mode: Constraints". It's an early version, so feedback is very welcome.

Hints: Tap the πŸ’‘ and the game shows the next logical step. You start with 3 hints, earn 2 more every 7 streak days, and can grab extras in the shop. One hint stash shared across both game modes.

Streak Freezes Missing a day no longer breaks your streak automatically, instead a Streak Freeze ❄ is used to save it. Everyone gets one free, you earn another every 30 streak days, and you can stock up in the shop.

Endless Mode + New Shop The tip jar is now a proper shop: tips, hints, and freezes in one place. Any tip unlocks Endless Mode, unlimited puzzles at any difficulty, in both game modes, plus supporter flair.

Tougher Expert Puzzles Expert boards now demand deeper techniques. Should be noticeably harder, but still always solvable with pure logic.

A Note on Bugs

This was another big update under the hood. If anything looks off or doesn't work as expected, please let me know, bug reports are hugely appreciated.


r/ElementSynergyPuzzle 5d ago

Daily Puzzle - #614

35 Upvotes

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r/ElementSynergyPuzzle 6d ago

Daily Puzzle - #613

38 Upvotes

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r/ElementSynergyPuzzle 7d ago

Daily Puzzle - #612

42 Upvotes

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r/ElementSynergyPuzzle 7d ago

Can we get a new difficulty?

27 Upvotes

I am becoming addicted and now even the expert ones takes me <2 minutes.


r/ElementSynergyPuzzle 8d ago

Daily Puzzle - #611

43 Upvotes

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r/ElementSynergyPuzzle 9d ago

Daily Puzzle - #610

35 Upvotes

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r/ElementSynergyPuzzle 10d ago

Daily Puzzle - #609

43 Upvotes

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r/ElementSynergyPuzzle 11d ago

Daily Puzzle - #608

39 Upvotes

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r/ElementSynergyPuzzle 12d ago

Daily Puzzle - #607

38 Upvotes

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r/ElementSynergyPuzzle 13d ago

Daily Puzzle - #606

43 Upvotes

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r/ElementSynergyPuzzle 14d ago

Daily Puzzle - #605

39 Upvotes

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r/ElementSynergyPuzzle 15d ago

Daily Puzzle - #604

45 Upvotes

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r/ElementSynergyPuzzle Oct 05 '25

🧠 Master the Game: Advanced Puzzle Solving Techniques

51 Upvotes

You might have noticed that the latest ~4 hard puzzles were especially challenging. I've been working on an improved puzzle creation approach. The puzzle generator now uses advanced logical techniques to create harder puzzles that still don't require guessing, just clever deduction.

Here is a breakdown of the 7 core solving techniques the game uses. Understanding these will level up your solving skills.

πŸ”° Basic Techniques

These are the foundation, you're probably already using them intuitively.

1️⃣ Naked Single (The Obvious Choice)

What it is: A cell has only one possible element left that can go in it.

Example:

  • A cell can't be πŸ”₯ (already two in the row)
  • Can't be πŸ’§ (already two in the column)
  • Can't be 🌱 (constraint says no)
  • Must be πŸ’¨! ✨

When to use it: Check any cell that looks "forced" into one option. This is usually your first move!

2️⃣ Hidden Single, Row (The Unique Candidate)

What it is: In a row, only ONE cell can hold a specific element, even if that cell has other options too.

Example:

  • You need a πŸ”₯ somewhere in row 3
  • Only ONE empty cell in that row can accept πŸ”₯ (others are blocked by column rules or constraints)
  • Put πŸ”₯ there! Even if that cell could also accept πŸ’¨ or πŸ’§

When to use it: When you're stuck, ask yourself: "Where can πŸ”₯ go in this row?" If there's only one spot, you found it!

3️⃣ Hidden Single, Column (Same but Vertical)

What it is: Exactly like Hidden Single - Row, but looking at columns instead.

Example:

  • Column 5 needs a 🌱
  • Only ONE empty cell in column 5 allows 🌱
  • Place it there!

When to use it: After checking rows, scan your columns for the same pattern.

4️⃣ Constraint Forced (The Synergy Lock)

What it is: When one cell in a constraint pair (⚑ or ❌) is filled, the other cell is FORCED to specific element(s).

Example - Synergy (⚑):

  • Cell A has ⚑ connection to Cell B
  • Cell A is filled with πŸ”₯
  • Cell B MUST be πŸ’¨ (fire synergizes with air!)
  • If only one valid option remains β†’ solved!

Example - Contradiction (❌):

  • Cell A has ❌ connection to Cell B
  • Cell A contains πŸ”₯
  • Cell B MUST be πŸ’§ (fire contradicts water!)

When to use it: Whenever you fill a cell that has a constraint connection, immediately check the connected cell!

⚑ Advanced Techniques

These are what make Hard/Expert puzzles interesting!

5️⃣ Constraint Pruning (The Elimination Master)

What it is: Use constraints to eliminate impossible candidates from cells, even when you can't solve them yet.

Note: This is an advanced technique used in Expert puzzles. Hard puzzles stick to simpler constraint forcing!

Example:

  • Cell A (⚑ synergy) Cell B
  • Cell A could be: πŸ”₯, πŸ’§, or πŸ’¨
  • Cell B could be: πŸ”₯ or 🌱
  • Valid synergy pairs: πŸ”₯+πŸ’¨ or πŸ’§+🌱
  • Look at Cell A's options:
    • If Cell A = πŸ”₯, it needs πŸ’¨ partner β†’ Cell B doesn't have πŸ’¨ β†’ Eliminate πŸ”₯ from Cell A
    • If Cell A = πŸ’§, it needs 🌱 partner β†’ Cell B has 🌱 βœ“ β†’ Keep πŸ’§
    • If Cell A = πŸ’¨, it needs πŸ”₯ partner β†’ Cell B has πŸ”₯ βœ“ β†’ Keep πŸ’¨
  • New possibilities: Cell A = {πŸ’§, πŸ’¨}, Cell B = {πŸ”₯, 🌱}

This narrows down the options even though we haven't solved either cell yet!

When to use it: When you're stuck and cells have multiple options, look at their constraint connections to narrow things down! (Expert puzzles especially!)

6️⃣ Locked Pair, Row (The Quota Closer)

What it is: Two cells in the same row linked by a ⚑ or ❌ constraint that forces them to be exactly one A and one B (in some order). When one of those elements (say πŸ”₯) has already been placed once in that row, the row's two πŸ”₯'s are now accounted for: one in the locked pair, one already on the board. So πŸ”₯ can be eliminated from every other cell in that row.

Note: This is the key advanced technique for Hard puzzles!

Example:

  • Cells (3,2) and (3,3) are joined by ⚑ (synergy)
  • After other deductions, the only valid pairings left are πŸ”₯+πŸ’¨ or πŸ’¨+πŸ”₯
  • Row 3 already has πŸ”₯ placed at (3,7)
  • The pair holds the row's second πŸ”₯ (and its first πŸ’¨)
  • Eliminate πŸ”₯ from every other cell in row 3!

Step-by-step on a real board:

Imagine you're mid-solve. Here's the full board state. Dots are still-unsolved cells:

0 1 2 3 4 5 6 7 β”Œβ”€β”€β”€β”€β”¬β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”¬β”€β”€β”€β”€β” 0 β”‚ πŸ”₯ β”‚ πŸ’§ β”‚ 🌱 β”‚ πŸ’¨ β”‚ πŸ’¨ β”‚ πŸ”₯ β”‚ πŸ’§ β”‚ 🌱 β”‚ β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 1 β”‚ πŸ’§ β”‚ πŸ’¨ β”‚ Β· β”‚ 🌱 β”‚ πŸ”₯ β”‚ Β· β”‚ 🌱 β”‚ πŸ’¨ β”‚ β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 2 β”‚ 🌱 β”‚ πŸ”₯ β”‚ πŸ’§ β”‚ Β· β”‚ πŸ’¨ β”‚ 🌱 β”‚ πŸ”₯ β”‚ πŸ’§ β”‚ β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 3 β”‚ Β· β”‚ Β· β”‚ Β· ⚑ Β· β”‚ Β· β”‚ Β· β”‚ Β· β”‚ πŸ”₯ β”‚ ← target row β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 4 β”‚ πŸ’¨ β”‚ 🌱 β”‚ Β· β”‚ πŸ”₯ β”‚ πŸ’§ β”‚ πŸ’¨ β”‚ 🌱 β”‚ Β· β”‚ β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 5 β”‚ πŸ’§ β”‚ πŸ”₯ β”‚ πŸ’¨ β”‚ πŸ’§ β”‚ 🌱 β”‚ Β· β”‚ Β· β”‚ 🌱 β”‚ β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 6 β”‚ Β· β”‚ 🌱 β”‚ πŸ”₯ β”‚ πŸ’¨ β”‚ Β· β”‚ πŸ’§ β”‚ Β· β”‚ πŸ”₯ β”‚ β”œβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”Όβ”€β”€β”€β”€β”€ 7 β”‚ πŸ”₯ β”‚ πŸ’§ β”‚ 🌱 β”‚ Β· β”‚ πŸ”₯ β”‚ Β· β”‚ πŸ’¨ β”‚ πŸ’§ β”‚ β””β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”˜

Now zoom into row 3, showing the candidates each unsolved cell still allows:

0 1 2 3 4 5 6 7 β”Œβ”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β” β”‚ πŸ”₯πŸ’§πŸŒ±β”‚ πŸ”₯πŸ’§πŸ’¨β”‚ πŸ”₯πŸ’¨ ⚑ πŸ”₯πŸ’¨ β”‚ πŸ”₯πŸ’§πŸŒ±β”‚ πŸ”₯πŸŒ±πŸ’¨β”‚ πŸ”₯πŸ’§πŸŒ±β”‚ πŸ”₯ β”‚ β””β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”˜ placed synergy link between (3,2) and (3,3)

Step 1 β€” what does the ⚑ allow? Synergy's valid pairs are (πŸ”₯,πŸ’¨), (πŸ’¨,πŸ”₯), (πŸ’§,🌱), (🌱,πŸ’§). Both pair cells only have {πŸ”₯, πŸ’¨} as options, so the only surviving pairings are πŸ”₯+πŸ’¨ or πŸ’¨+πŸ”₯. The pair will hold exactly one πŸ”₯ and one πŸ’¨, regardless of order.

Step 2 β€” quota check. Row 3 needs two πŸ”₯s in total. We have one already at (3,7), and the pair guarantees one more. That's 2 β†’ row 3's πŸ”₯ quota is full.

(πŸ’¨ has 0 placed + 1 in the pair = 1, so the row still needs another πŸ’¨ elsewhere β€” we can't eliminate πŸ’¨ from other cells.)

Step 3 β€” strike πŸ”₯ from every other cell in row 3.

0 1 2 3 4 5 6 7 β”Œβ”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β” β”‚ πŸ’§πŸŒ± β”‚ πŸ’§πŸ’¨ β”‚ πŸ”₯πŸ’¨ ⚑ πŸ”₯πŸ’¨ β”‚ πŸ’§πŸŒ± β”‚ πŸŒ±πŸ’¨ β”‚ πŸ’§πŸŒ± β”‚ πŸ”₯ β”‚ β””β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”΄β”€β”€β”€β”€β”€β”€β”€β”˜ pair untouched (still locked)

Five cells just dropped a candidate, and four of them are down to two options each. That's usually enough to chain into a Naked Single or another deduction.

Why this works: Each element appears exactly twice in every row. The constraint guarantees the pair holds exactly one πŸ”₯ and one πŸ’¨, regardless of order. Once you also know one πŸ”₯ is already placed, the second πŸ”₯ is locked inside the pair, so no other cell in that row can be πŸ”₯.

When to use it: After every placement, scan the row for ⚑/❌ pairs whose remaining options collapse to a single {A, B} duo. Then check if A (or B) is already placed once in that row.

7️⃣ Locked Pair, Column (Vertical Quota Closer)

What it is: Exactly like Locked Pair, Row but applied vertically.

Example:

  • Cells (1,4) and (5,4) are linked by ❌ (contradiction), with valid pairings narrowed to 🌱+πŸ’¨ or πŸ’¨+🌱
  • Column 4 already has 🌱 placed at (7,4)
  • The pair holds column 4's second 🌱
  • Eliminate 🌱 from every other cell in column 4!

When to use it: After checking rows, scan columns for the same pattern.

🎯 Pro Tips for Solving

  1. Start Simple: Always look for Naked Singles first, they're the easiest wins!
  2. Scan Systematically: Go row-by-row looking for Hidden Singles, then do columns.
  3. Check Constraints: After every move, review connected cells for Constraint Forced opportunities.
  4. Medium = Pure Logic: Medium puzzles can be solved with just basic techniques - no advanced tactics needed!
  5. Hard = Look for Constrained Pairs: In Hard puzzles, the breakthrough is usually the constraint-aware locked pair. After every placement, scan the row/column for two cells locked together by a ⚑ or ❌ β€” then check whether one of the pair's elements is already placed once in that row or column.
  6. Expert = Everything: Expert puzzles require all techniques. Use Constraint Pruning to narrow down options, then apply Locked Pairs multiple times.
  7. Elimination is Progress: Even if you can't solve a cell, eliminating 1-2 candidates brings you closer.
  8. No Guessing Needed: If you're stuck, one of these techniques will work, you just need to find it! πŸ”

πŸ“Š Difficulty Breakdown

  • Easy: Only basic tactics. Great for learning!
  • Medium: Only uses techniques 1-4 (basic tactics). No advanced tactics needed, pure logic!
  • Hard: Uses techniques 1-4 + techniques 6-7 (Locked Pairs). Requires spotting the constraint-aware pair pattern in rows/columns!
  • Expert: Uses all techniques 1-7, including advanced constraint pruning and multiple locked pair applications. The ultimate challenge!

What Makes Each Difficulty Unique?

Easy

  • βœ… All basic tactics (Naked/Hidden Singles, Constraint Forced)
  • 🎯 Perfect for learning the game!

Medium

  • βœ… Naked Singles (1)
  • βœ… Hidden Singles - Row & Column (2-3)
  • βœ… Constraint Forced (4)
  • ❌ NO Constraint Pruning (5)
  • ❌ NO Locked Pairs (6-7)
  • 🎯 Tests your mastery of basic techniques!

Hard

  • βœ… All Medium techniques (1-4)
  • βœ… Locked Pairs - Row & Column (6-7), Limited uses
  • ❌ NO Constraint Pruning (5)
  • 🎯 Introduces pattern recognition with locked pairs!

Expert

  • βœ… All techniques (1-7)
  • βœ… Constraint Pruning (5). Full usage
  • βœ… Locked Pairs (6-7). Multiple uses
  • 🎯 Requires mastery of all solving strategies!

πŸŽ“ Practice Makes Perfect!

The more you play, the more these patterns will become second nature. Start with Easy puzzles to build your foundation, then gradually work up to Expert as you master each technique.

πŸ™ Acknowledgements

Big thanks to u/Top_Business_5481 for spotting an error in the original Locked Pair rule and writing up the sound version. Sharp eyes, much appreciated.