Solve is a clever solo card game where every move counts. Quick to learn, endlessly replayable, and made in Australia.

How it Win

Master Solve in four simple steps. Easy to learn, challenging to master.

Shuffle the Cards

Start by shuffling your 38 unique cards to create endless possibilities

Draw & Place

Draw cards and strategically place them into your 4×4 grid formation

Match Edges

Score points by matching symbols on adjacent card edges

Escape Gridlock!

Get stuck? You're in Solve! Can you find a way out?

Simple rules, endless strategies. The goal? Build the grid before you run out of cards. Every game is different. Every decision is a new challenge.

SEE FULL RULES AND DOWNLOAD PDF

Why You'll Love Solve

Why Solve?

Learn in 2 minutes

Endlessly replayable

Surprisingly addictive

Portable and perfect for travel

Designed for solo play (no friends required)

Play for 10 minutes, or for an hour straight

Designed in Australia

Solve

The single player card game that is the perfect blend of Solitaire, Sudoku and Dominoes.

High-quality card stock with unique symbol combinations on each card

Clear, illustrated instructions with strategy tips and variations

Track your progress and compete with yourself across multiple games

Durable, travel-friendly packaging that doubles as storage

$24.95

Shop Now

WHAT OTHERS SAY

Sarah M.

⭐⭐⭐⭐⭐

"Addictive and clever — my new go-to solo game! Perfect for when I need a mental break but want something engaging."

Board Game Enthusiast

Mike R.

⭐⭐⭐⭐⭐

"So portable, I take it everywhere. Great for flights, coffee shops, or just relaxing at home. Quality is excellent too."

Frequent Traveler

Emma L.

⭐⭐⭐⭐⭐

"Feels like Sudoku but way more interactive. Each game is different and I love the strategic thinking required."

Puzzle Lover

Sarah M.

⭐⭐⭐⭐⭐

"Addictive and clever — my new go-to solo game! Perfect for when I need a mental break but want something engaging."

Board Game Enthusiast

Meet the Creator

Hi, I'm James Mackay,Solve is a clever, pocket-sized card game designed in Australia. Easy to learn yet tricky to master, it challenges you to build a 4x4 grid by matching symbols—every move counts. Perfect for solo play, it’s quick, strategic, and endlessly replayable—ideal for puzzle lovers looking for a fresh twist.

Solve was born from my love of solo card games and strategic puzzles...

Two years of prototyping, testing, and refining later...

Independent Creator James Mackay Game Designer

The Perfect Blend of Strategy & Fun

Grid Lock challenges you to match sides, fill the grid, and chase high scores. With 38 unique cards and limitless combinations, every game feels fresh and strategic.