Harmony Hash

Harmony Hash

A calm merge puzzle built on the 64 hexagrams of the I Ching.

Slide the board to move broken (yin) and unbroken (yang) lines. Merge two lines into a digram, add a line to make a trigram, and fuse two trigrams into one of the 64 hexagrams. Lock 28 unique hexagrams into the highlighted cells to restore Harmony.

No rush, no ads — just lines, balance, and a quiet puzzle to think with.

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## How to play

1. Move — swipe (or use the arrow keys / WASD) to shift every piece in that direction.

2. Merge — when two pieces collide they fuse into the next element:

   `Line → Digram → Trigram → Hexagram`

3. Lock — park a hexagram on a highlighted *special* cell and tap/click it to lock it. Every hexagram can be locked only once — you must discover all 28.

4. Watch out for duplicates — a hexagram that is already locked elsewhere cannot be locked again. Tap a duplicate to purify (remove) it, but it costs one heart.

5. Win — fill the highlighted cells with 28 unique locked hexagrams before you run out of hearts. Your final score is reduced by the seconds you took.

> Tip: the *special* cells are the four rows/columns that form a big # across the board — think of the board as a hash grid of hexagrams.

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## The 64 hexagrams

Each element is a stack of lines, and each line is either yang (unbroken ▬▬▬) or yin (broken ▬ ▬).

- Two lines make a digram (2 lines)

- A digram + a line makes a trigram (3 lines)

- Two trigrams combine into a hexagram (6 lines)

6 lines = 2⁶ = 64 possible hexagrams — the same 64 figures of the I Ching. You only need the 28 unique ones.

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## Features

- 🧩 A fresh merge mechanic — not "double the number", but "build the figure".

- 🎯 4 difficulty modes with hearts and randomly blocked cells.

- 🤖 Auto-play — watch the puzzle play itself.

- 🌗 Light & dark themes.

- 🌎 English & Português.

- 🧮 Speed-based scoring — merges and locks earn points; elapsed time is subtracted at the end.

- 🖥️ Responsive board — always centered, from a phone-shaped window to widescreen.

- 💤 No timers pushing you, no lives to buy, no interruptions.

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## Difficulty modes

| Mode | Hearts | Blocked cells |

|---------|:--------:|:---------------:|

| Easy---| --7---- | -------0------ |

| Normal --| 5 |------ 3 random |

| Hard----- | 3 | ------7 random |

| Impossible | 0 | --12 random |

Hearts let you delete duplicate hexagrams. Impossible gives you none.

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## Scoring

| Action | Points |

|--------|:------:|

| Line spawned | +1 |

| Digram formed | +2 |

| Trigram formed | +3 |

| Hexagram formed | +6 |

| Hexagram locked | +10 |

| Hexagram unlocked | −20 |

| Heart used | −50 |

| Time | −1 point per second |

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## Controls

| Action | Input |

|--------|-------|

| Move board | Arrow keys / W A S D, or swipe with mouse/touch |

| Lock / unlock / purify | Click or tap the cell |

| Auto-play | Auto-play button |

| Reset / Mode / Theme / Language | On-screen buttons (or R to reset) |

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## Status

This is an early prototype built natively with raylib + C. It runs on Windows (desktop). Feedback, bug reports, and "this is impossible on Hard" complaints are very welcome — tell me what would make it better.

If you enjoy it, a donation helps me keep polishing it. You can always download it for free.

Made by Alexandre Michel Gavronski. All Rights Reserved.