# 🧠 Memory Match

> ⚠️ **Experimental — generated with no human supervision.** This realm was
> produced automatically by an MCP-driven agent to exercise the gno MCP server
> and tooling, and to generate test content for gno compilers, linters and
> formatters. **Not audited. Not for production.** Full context & folder README:
> [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md)

---


A concentration game on a 4x4 grid of 8 emoji pairs. The board is shuffled
deterministically from the current block height (there is no on-chain RNG), so
every `NewGame` produces a reproducible layout for a given height. Flip tiles two
at a time: matching pairs stay face-up, mismatches flip back on your next move.
The realm tracks your move count and matched pairs and reports the solved state.

**Realm path:** `gno.land/r/REPLACE_ADDR/memory`

## How to play

- `Flip(index int)` — reveal the tile at `index` (0–15, row-major). The first
  reveal starts an attempt; the second completes a *move*. Matching faces stay
  up; a mismatch shows both tiles until your next `Flip` clears them.
- `NewGame()` — reshuffle the board using the current block height as the seed.
- `Render(path)` — renders the grid (❓ hidden, emoji revealed/matched), the move
  count, matched-pair count, and whether the game is solved.

## Example calls

```
# start a fresh, height-seeded board
NewGame()

# reveal cell 0, then cell 5
Flip(0)
Flip(5)

# view the board
gnokey query vm/qrender --data "gno.land/r/REPLACE_ADDR/memory:"
```

Solve all 8 pairs to win; the render then shows your total move count.

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Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

> 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).

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