Quick to hide. Easy to resume.

No sign-up is required. Place pieces on a 9×9 board and clear complete rows or columns.

Your board auto-saves in this browser, and Esc quickly switches to a neutral work-style screen.

Choose a job category such as engineer, sales, or student to join your team's leaderboard. No name, email, or account is needed.

No sound, no ads, and no popups. AltTab Blocks is designed to be a quiet, unobtrusive break during a workday or study session.