# Sum Cross

> Cross sums. One answer, no guessing.

⁨Sum Cross⁩ is a free ⁨2D⁩ browser game by ⁨Oneshot Gems⁩.

## Key facts

- URL: https://oneshotgems.ai/g/sum-cross
- Creator: [Oneshot Gems](https://oneshotgems.ai/@oneshotgems) (@oneshotgems)
- Style: 2D
- Hashtag: #puzzle, #logic, #numbers, #newspaper, #daily, #math
- Controls: Tap, Drag
- No public leaderboard scores recorded yet.
- Languages: English 🇬🇧, Español 🇪🇸, Français 🇫🇷, Deutsch 🇩🇪, Português (Brasil) 🇧🇷, 日本語 🇯🇵, 한국어 🇰🇷, 简体中文 🇨🇳, العربية 🇸🇦, हिन्दी 🇮🇳
- Free to play. Full-screen ads between games.
- Added: October 11, 2026; Updated: October 11, 2026

## How to play

Fill the white squares with 1 to 9 so every run adds up to the clue at its start, with no digit repeated in a run. Tap or drag to pick a square and tap a number (or type it; arrows move, Space for pencil notes). A daily puzzle that grows through the week, then a practice ladder.

## Explore game collections and guides

- [Relaxing Games for a Gentler Pace](https://oneshotgems.ai/topics/relaxing-games): Find browser games with chill or cozy moods, from careful sorting and stacking to orbital timing, and choose a session that suits your attention.
- [Puzzle Games to Play in Your Browser](https://oneshotgems.ai/topics/puzzle-games): Sort colors, plan number merges, route a boat or identify planets with these browser puzzle games and practical ways to approach each one.
- [2D Browser Games with Clear, Readable Loops](https://oneshotgems.ai/topics/2d-browser-games): Find 2D browser games for sorting, bouncing, merging and aiming, with specific starting tips for a range of play styles.
- [Choose a Sorting, Merge or Route Puzzle](https://oneshotgems.ai/topics/sorting-games): Choose a browser puzzle by its main decision: sort visible layers, set up a number merge or route a moving boat through hazards.

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Canonical page: https://oneshotgems.ai/g/sum-cross