✦
Guaranteed solvable
Every level has a real, verified solution before rotations are scrambled.
Pipe-rotation connection puzzle
Circuit Vault: rotate every pipe until the source reaches each target.
Rotate pipe tiles to connect a source to every target across a 150-level campaign of guaranteed-solvable connection puzzles.
- Play style
- Campaign puzzle levels
- Best for
- Short logic sessions
- Where to play
- Mobile or desktop
Live Preview ReadyCircuit Vault · Free Play
Play Instant ➔Instructions & Rules
How to Play Circuit Vault
Follow these simple steps to master the game mechanics and clear every tier.
- 01Step
Tap any non-fixed tile to rotate it 90 degrees so its open sides line up with its neighbors.
- 02Step
Watch tiles connected back to the source light up in real time as you rotate the board.
- 03Step
Connect every target to the source to clear the level — the finished board glows for a few seconds so you can see what you built before the next-level popup appears.
Comprehensive Educational Guide
Graph Theory & Pipe Rotation Puzzle Solving Guide
Pathfinding algorithms, rotation optimization, and topological puzzle mechanics.
✍️ Author: VibWebs Algorithm & Engineering Team•🔍 Review: Editorial Board (Fact-Checked)•📅 Updated: September 2026•⏱️ 7 min read
1. Graph Theory & Discrete Mechanics
Breadth-First Search (BFS) & Minimum Spanning Paths
Connect the Diamonds is built on discrete 2D grid graph theory. Each tile represents a graph node with 1 to 4 connection ports. The objective is to rotate tiles until an unbroken subgraph connects the source node to all designated diamond target nodes.
Our reverse-generation algorithm uses BFS to guarantee that every generated level possesses at least one valid path with zero deadlocks.
2. Solving Tactics & Par Rotation Efficiency
Endpoint Deduction & Inward Solving
Begin by analyzing fixed perimeter boundary tiles and dead-end diamond targets. Because connection ports cannot point into exterior walls, the orientation of perimeter tiles can often be uniquely deduced with 100% certainty before touching inner junction nodes.
Key Features
Every puzzle is generated with a guaranteed solution.
A real path is built from the source to each target first, routed around any obstacles, then only the rotations are scrambled — so every level is solvable, never by luck.
✦
150-level campaign
15 chapters raise the difficulty with more targets, fixed obstacle tiles, key-locked targets, and rotation limits, without needing an ever-bigger board.
✦
Rotation-efficiency scoring
Score rewards solving each level in fewer rotations, with a saved local best.
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Frequently asked questions
What is Circuit Vault?
Circuit Vault (formerly Connect the Diamonds) is a pipe-rotation connection puzzle. You rotate tiles until a source is connected to every target on the board.
How do I win a level?
Rotate tiles so their open sides line up with their neighbors until every target on the board is connected back to the source.
Is every puzzle actually solvable?
Yes. Each level is generated by first building a real solution path to every target, then scrambling only the rotations — so a solution always exists.
