Milligrid

20 logic puzzles · Android

Twenty logic puzzles on one sheet of graph paper

Sudoku, nonograms, Kakuro, Slitherlink and sixteen more — generated on the phone, checked by a solver, each with exactly one answer. Plays offline, no account needed.

Coming to Google PlayOpen the catalog

from 9 November 2026

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01 · Sudoku · 9×9 · easy

01 · Daily set

Three puzzles a day, the same for everyone

A new set starts at 00:00 UTC: three different games, from easy to hard. Solve all three to keep the streak going. Everyone on the planet gets the same puzzles — so the times are comparable.

3
puzzles in a set
00:00
UTC, new set
20
games in rotation
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02 · Catalog

All twenty games

Numbers are the same as in the app.

  1. 01SudokuDigits 1–N, no repeats in a row, a column or a box6×6 · 9×9
  2. 02NonogramNumbers say how many cells in a row are filled5×5 · 10×10 · 15×15
  3. 03BinairoOnly 0 and 1, never three in a row6×6 · 8×8 · 10×10 · 12×12
  4. 04Light UpLight every square with lamps7×7 · 10×10 · 14×14
  5. 05TentsOne tent beside every tree8×8 · 10×10 · 15×15
  6. 06BridgesJoin every island into one7×7 · 10×10 · 13×13
  7. 07RectanglesSplit the grid into rectangles by the numbers7×7 · 10×10 · 15×15
  8. 08SuguruDigits 1–N in each region, equal digits never touch6×6 · 8×8 · 10×10
  9. 09QueensOne queen per row, column and region7×7 · 9×9 · 11×11
  10. 10Star BattleTwo stars per row, column and region9×9 · 10×10
  11. 11SlitherlinkOne loop around the numbers7×7 · 10×10 · 13×13
  12. 12NumberlinkPairs of numbers, lines through every cell7×7 · 9×9 · 12×12
  13. 13GalaxiesSymmetric regions around their centres7×7 · 10×10 · 14×14
  14. 14KakuroSums across and down from digits 1–9, no repeats8×8 · 10×10 · 12×12
  15. 15Killer SudokuSudoku where cage sums replace the given digits6×6 · 9×9
  16. 16SkyscrapersHeights 1–N in every line; the numbers outside say how many towers you can see5×5 · 6×6 · 7×7
  17. 17FutoshikiDigits 1–N in every line; the signs between cells say which is bigger5×5 · 7×7 · 9×9
  18. 18HitoriShade the repeats until every row and column is clean6×6 · 8×8 · 10×10
  19. 19NurikabeFlood the sea around islands whose numbers give their size7×7 · 10×10 · 12×12
  20. 20MasyuOne loop through white and black pearls7×7 · 10×10 · 13×13

03 · Hints

A hint names the move, not just the cell

Every puzzle is solved by a step-by-step logical solver. When you are stuck, the hint shows the next deduction and its name — the same one a strong player would make.

  1. 01
    Only candidate in the cell

    Every other digit already appears in this row, column or box.

  2. 02
    Only place for the digit

    In this line the digit fits nowhere else.

  3. 03
    X-wing

    The digit sits in the same two columns of two rows — it cannot appear elsewhere in those columns.

Sudoku techniques, as they appear in the app

04 · Price

Free to play

All twenty games are free. Ads appear after a win and in the catalog — never in the middle of a puzzle. One purchase removes them for good.