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dOubLESHOW
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dOubLESHOW 2
dOubLESHOW 3
dOubLESHOW 2x2
dOubLESHOW
2
dOubLESHOW 6
dOubLESHOW 7
dOubLESHOW 2x2x2
dOubLESHOW 3
2
dOubLESHOW 10
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Puzzle XL
Puzzle XL 2020
Puzzle XL 2021
Puzzle XL 2022
Puzzle XL 2023
Puzzle XL 2024
dOubLESHOW
dOubLESHOW
dOubLESHOW 2
dOubLESHOW 3
dOubLESHOW 2x2
dOubLESHOW
2
dOubLESHOW 6
dOubLESHOW 7
dOubLESHOW 2x2x2
dOubLESHOW 3
2
dOubLESHOW 10
Month-long marathons
Tap into Tapa
Skyline Magic
Slitherlink Expedition
Tetromino Canvas Clash
Double Choco Delight
Other contests
Anniversary duel
6x6 duel
Twentyx 1/2-No numbers
Nikoli month 1/2
Nikoli month 2/2
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Puzzles by type
Author: Vladimir Portugalov
Sudokus
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
8x8
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
Other Latin Squares
Double Block
5x5
5x5
5x5
6x6
6x6
6x6
6x6
7x7
7x7
11x11
Easy as ABC
5x5
6x6
5x5
6x6
6x6
6x6
6x6
6x6
7x7
7x7
Fuzuli
5x5
5x5
5x5
6x6
6x6
6x6
6x6
7x7
6x6
6x6
6x6
6x6
7x7
7x7
7x7
7x7
7x7
Magic Snail
7x7
7x7
Skyscrapers
5x5
6x6
5x5
5x5
5x5
6x6
6x6
6x6
6x6
6x6
Top Heavy Number Place
12x12
Number Placement Puzzles
Chaos
5x5
5x5
6x6
6x6
6x6
6x6
7x7
7x7
Ripple Effect
6x6
7x7
7x7
7x7
6x6
7x7
6x6
6x7
8x8
8x8
8x8
6x8
7x7
7x7
8x8
7x7
7x7
Suguru
6x6
7x7
7x7
6x8
7x7
7x9
8x8
6x6
6x6
7x7
7x7
7x7
8x8
9x9
8x8
13x13
15x15
Object Placement Puzzles
Akari
8x8
7x9
9x9
Clouds
8x8
9x9
9x9
10x10
10x10
Lighthouses
10x9
10x10
8x8
8x8
9x9
16x16
Minesweeper
6x8
7x7
8x8
8x8
7x7
9x9
10x10
7x7
10x10
9x9
17x17
No Four in a Row
7x9
8x8
7x9
8x10
Star Battle
10x10
10x10
10x10
Star Battle (Small Regions)
14x14
Pentomino/Tetromino puzzles
Hungarian Pentomino
17x17
LITS
8x8
8x8
Pentomino
12x12
Line Drawing Puzzles
Alternate Loop
8x8
10x10
8x8
10x10
14x14
Double Back
8x8
Even/Odd Fence
3x4
3x4
4x5
5x5
Every Second Turn
8x8
8x10
10x10
10x10
18x18
Fences/Slitherlink
5x5
5x5
5x5
6x6
6x6
7x7
6x6
6x6
6x6
7x7
7x7
7x7
8x8
Four Winds
7x8
8x8
7x9
15x15
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
Snake Drawing Puzzles
Belarusian Snake
8x8
7x9
7x7
7x12
8x8
10x10
10x10
9x9
13x13
Dutch Snake
10x10
Passage
9x10
9x9
16x16
Snake
7x10
9x9
7x9
8x10
13x13
Painting Puzzles
Cave
7x7
7x7
8x8
Easy as Coral
8x8
9x9
Heyawake
6x6
8x8
7x7
6x6
9x9
7x7
6x8
15x15
Hitori
6x6
7x7
7x7
9x9
8x8
8x8
9x9
8x8
12x12
Kuromasu
7x7
6x6
7x8
5x6
6x8
6x6
14x14
7x7
Norinori
8x8
7x8
15x15
Nurikabe
6x7
6x6
Paint by Max
6x6
6x6
7x7
7x7
8x8
7x7
9x7
7x9
7x8
8x8
8x8
7x7
8x8
7x9
12x12
14x14
13x13
Tapa
7x7
10x10
10x10
9x9
9x9
9x9
8x8
8x8
17x17
9x9
Yin Yang
7x7
7x7
7x7
7x7
8x8
9x9
7x9
10x10
8x8
7x7
12x12
Region Division Puzzles
ABC Division
8x8
6x8
6x8
8x8
7x10
6x9
7x10
9x10
15x12
12x14
Black and white
8x8
7x7
10x10
9x9
8x10
Domino Hunt
10x11
Fillomino
7x7
L-shapes
7x7
8x8
7x7
8x10
7x8
7x9
9x11
9x9
12x15
Shikaku
9x9
9x10
8x8
10x10
Spiral Galaxies
7x9
8x8
9x9
13x12
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