Easy Orbit / Classic 9×9

Play Easy Sudoku online.
Build the rhythm before the pressure.

Easy Orbit opens the 9×9 ladder with a generous clue field and gradually tightens it across 200 boards. It exists to make the first useful habits visible: scan the crowded units, check the crossing constraints, and place a value only when the logic holds.

E200ANDROID BOARDS
Play Easy Sudoku online

Choose the world.
Read the grid.

This free browser practice board opens on the Easy Orbit clue profile: a classic 9×9 grid with a generous clue field. It is one fixed learning puzzle with local browser state, not a large web-puzzle inventory.

Free browser boardClassic 9×9 · no accountEasy-first fixed browser sample
Astra
online
WorldNariman Number NebulaCONSTELLATION SIGNAL
Time00:00session
02 / Clue profile
WORLD KEY
1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9
Number lanes / keyboard still accepts 1–9
Nebula board / easy orbitclassic rules

Rule focus Row · Column · 3×3 boxNumber lanes world signs / values 1–9Easy Orbit browser clue profile
What the tier means

Easy Orbit

Easy Orbit opens the 9×9 ladder with a generous clue field and gradually tightens it across 200 boards. It exists to make the first useful habits visible: scan the crowded units, check the crossing constraints, and place a value only when the logic holds.

Format checkA 9×9 classic Sudoku tier. The same row, column, and 3×3-box rules apply on every board.

200boards in the Android ladder
9×9classic board format
2opening free hints per board
How to meet it

Start with a trustworthy process.

Use the same reliable loop at every 9×9 level: scan the crowded unit, check the crossing unit, record candidates only when needed, then place the value that survives all three constraints.

Read the first-solve walkthrough →
  1. 01Read the givens

    Find the row, column, or box where only a short list remains.

  2. 02Eliminate visibly

    Let crossing constraints remove candidates; never promote a guess into a rule.

  3. 03Protect the board state

    Use notes and undo as deliberate tools, not as a reason to rush the placement.

Next in the ladder

Medium Drift waits beyond this signal.

Every transition in the Android ladder is designed to feel continuous rather than like a restart with a new label.

Open Medium Drift →