About Sydneydoku

Sydneydoku is a daily grid puzzle inspired by the Sydney Trains (T-lines) and Sydney Metro (M1) network. Each day there's a fresh 3×3 grid. Every row and every column has a clue — a line, a region, a station attribute, or a bit of wordplay.

How to play

• Tap a cell and name a station that satisfies both its row clue and its column clue.
• A correct answer locks the cell; a wrong guess costs +100 and you can try that cell again.
• Each station can be used only once across the grid.
• A correct answer scores that station's rarity (0.1–100). An empty cell scores 100.
• Lower is better. Picking obscure-but-correct stations beats picking the obvious hub.

Scoring

Your score starts at 900 and drops as you lock in correct answers. Each wrong guess adds 100, and once your score reaches 1300 you're locked out — so guess carefully. A perfect grid of nine obscure stations can score far lower than a perfect grid of nine major interchanges — so think rare, not just right.

Sydneydoku is a fan-made puzzle and is not affiliated with or endorsed by Transport for NSW. Station data is approximate and community-maintained.