Puzzles by type

Author: Vladimir Portugalov

Antidiagonal Sudoku

9x9

Diagonal Sudoku

6x6 6x6 6x6 8x8 9x9 8x8 8x8 9x9

Even/Odd Sudoku

6x6 8x8 9x9 9x9

Irregular Sudoku

7x7 8x8 7x7 9x9 8x8

No Touch Sudoku

9x9

Odd-Even-Big-Small

8x8 8x8 8x8 8x8 8x8

Skyscrapers Sudoku

6x6 9x9

Sudoku

6x6 8x8 8x8 9x9

X Sums Sudoku

6x6 6x6 8x8

LITS

8x8 8x8

Pentomino

12x12

Alternate Loop

8x8 8x8

Double Back

8x8

Every Second Turn

8x8 10x10 18x18

Fences

6x6 7x7 7x7 8x8

Masyu

8x8

Maxi Loop

6x6

Railroad

9x9 10x10

Simple Loop

8x8 9x9 10x10 11x11

Belarusian Snake

8x8 7x12 8x8 10x10 10x10 9x9 13x13

Dutch Snake

10x10

ABC Division

8x8 6x8 9x10 15x12

Black and white

10x10

L-shapes

7x7 8x10 9x11 9x9

Shikaku

9x9 8x8 10x10

Spiral Galaxies

7x9 8x8 9x9 12x12
Stars show the aproximate puzzle difficulty:
  • - 30 seconds solving time for an expert
  • - 75 seconds solving time for an expert
  • - 4 minutes solving time for an expert
  • - 10 minutes solving time for an expert
  • - 25 minutes solving time for an expert