Puzzles by type

Author: Vladimir Portugalov

Antidiagonal Sudoku

9x9 9x9

Consecutive Sudoku

6x6 8x8

Diagonal Sudoku

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

Even/Odd Sudoku

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

Fortress Sudoku

6x6 9x9 9x9

Irregular Sudoku

6x6 7x7 8x8 7x7 9x9 8x8 7x7 9x9

No Touch Sudoku

9x9

Odd Sudoku

9x9

Odd-Even-Big-Small

8x8 8x8 8x8 8x8 8x8 8x8 8x8

Pair Sum Sudoku

9x9 9x9

Perfect Square Sudoku

9x9 9x9 9x9

Skyscrapers Sudoku

6x6 9x9 9x9 9x9

Sudoku

6x6 8x8 8x8 9x9 9x9

Sudoku Extra Regions

6x6 9x9

X Sums Sudoku

6x6 6x6 6x6 6x6 8x8 8x8 8x8

Hungarian Pentomino

17x17

LITS

8x8 8x8

Pentomino

12x12

Alternate Loop

8x8 10x10 8x8 10x10 14x14

Double Back

8x8

Even/Odd Fence

3x4 5x5

Every Second Turn

8x8 8x10 10x10 10x10 18x18

Fences/Slitherlink

5x5 5x5 6x6 6x6 7x7 6x6 6x6 6x6 7x7 7x7 7x7 8x8

Four Winds

7x8 8x8 7x9 14x14

Knapp Daneben Slitherlink

4x5 4x6 5x6 5x5

Masyu

8x8

Maxi Loop

6x6 7x8 7x10

Railroad

9x9 9x9 10x10

Simple Loop

8x8 9x9 8x10 10x10 11x11
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