QSum: Number Sums Puzzle

Match numbers, clear the board.

QSum is a cozy number puzzle with one simple rule: drag across neighboring tiles so their numbers add up to the target sum. Clear every tile for the perfect S grade — but watch out, one greedy move can strand the rest of the board. A relaxing logic game and a genuine brain workout in the same little package.

HOW TO PLAY

• Drag across neighboring tiles so they add up to the target number
• Every cleared tile counts — clear the whole board for the perfect S grade
• Stuck? Ring the hint bell to reveal the next move on the perfect path
• Plan ahead: one greedy move can leave the rest of the board unsolvable

LEVEL MODE — Four handcrafted packs, from gentle 3x3 gardens to the fiendish 6x6 Quantum Matrix. Every level is verified to have a perfect solution — this logic puzzle never deals you an unsolvable board.

ENDLESS MODE — Fresh number puzzles forever. Clear a board perfectly to grow your streak; one miss and it's gone. A quick math workout or a long zen session — your call.

HINTS WHEN YOU NEED THEM — Hints highlight the next move on the perfect path. Earn more by watching an optional ad, or grab a hint pack whenever you need one.

MADE WITH CARE

• Free to play, and playable completely offline — perfect for flights and commutes
• Warm, tactile tile design with light and dark themes
• Satisfying sounds and haptics (toggle anytime)
• No forced ads — ever. Ads are optional and always your choice
• No account, no sign-in; your progress stays on your device
• Train your brain: logic, mental math, and planning in every board

A little brain teaser for your coffee break, from a tiny studio that loves number games.