They share the same core rule — one piece per row, column and region, with none touching, not even diagonally. Queens (popularized by LinkedIn) uses color regions with exactly one piece per line; Star Battle is the classic black-and-white version that can ask for two or more stars per line. Dinodoku follows the one-per-line, color-region style with a world of dinosaurs.

If you enjoy Sudoku, you will feel right at home — Dinodoku is the same kind of pure-logic, no-luck deduction puzzle, and a relaxing daily brain teaser. The twist: instead of filling 1–9 into a grid, you place one dino per row, column and color region, with none touching. Think of it as a Sudoku-style logic puzzle with colors and dinosaurs instead of numbers.

No. Dinodoku runs in any modern web browser. There is also a mobile app, but the web version needs no install.

Yes — there is a Daily Challenge, plus a full ladder of hand-tuned levels that get gradually harder as you climb.

By logic alone. Use the rules to rule cells out with ✕ until each row, column and region has exactly one forced spot for its dino. If you get stuck, the in-game hint will teach you the next step.