New puzzle type – Yakazu.
We have also added 135 other new puzzles since the previous update: Arukone (75-90), Mochikoro (76-90). Walls (76-85), Tents and Trees (81-90), Akari (76-90), Kuromasu (76-90), Knossos (76-90), Creek (76-90), Heyawake (76-90).

New puzzle type – Curving Road.
We have also added 105 other new puzzles since the previous update: Fobidoshi (76-90). Patchwork (76-90), Suguru (106-120), Bridges (76-90), Shikaku (76-90), Yin Yang (76-90), Linesweeper (76-90).

New puzzle type – Neighbours.
We have also added 170 other new puzzles since the previous update: Sudoku (481-500), Corral (75-90), Kropki Sudoku (81-90), Frame Sudoku (81-90), Greater-Than Sudoku (81-90), Doors (76-90), Killer Sudoku (141-160), Nurikabe (76-90), Jigsaw Sudoku (81-200), Masyu (76-90), Girandola Sudoku (61-80).

Error checking has been added to the additional rules for Low-High Sudoku, Argyle Sudoku, Bold X Sudoku and SnowFlake Sudoku.
Clear your browser cache to ensure the new features work correctly.

Right-click on or hold – Now, candidates are generated correctly in multi-sudoku. Option description added to short manuals.

New Sudoku variant – Girandola Sudoku.
We have also added 180 other new puzzles since the previous update: Irasuto (76-90), Doubledoku (81-100), Slalom (76-90), Twodoku (81-100), Koburin (76-90), Sensei Sudoku (81-100), Minesweeper (76-90).

Error checking has been added to the additional rules for Anti-King Sudoku, Anti-Knight Sudoku, Nonconsecutive Sudoku, Disjoint Groups Sudoku, Asterisk Sudoku, Center Dot Sudoku, Windoku and, of course, Girandola Sudoku.
Clear your browser cache to ensure the new features work correctly.

New puzzle type – Arrow Web.
We have also added 140 other new puzzles since the previous update: Samurai Sudoku (101-120), ABC End View (76-90), Bricks (76-90), Mathrax (76-90), Straights (76-90), Eulero (76-90), Double Block (76-90), Tenner Grid (76-90), Hakyuu (76-90).

Fixed all known issues. The website design has been updated with a few minor tweaks.

New puzzle type – Trinudo.
We have also added 120 other new puzzles since the previous update: Context (61-75), Sudoku (461-480), Skyscrapers (75-90), Windoku (100-120), Hidoku (106-120), Sukaku (80-100), Trace Numbers (61-75).

New puzzle type – Trace Numbers.
We have also added 145 other new puzzles since the previous update: Sukaku (61-80), Knossos (61-75), Simple Loop (61-75), Killer Sudoku (121-140), Suguru (91-105), Greater-Than Sudoku (71-80), Kropki Sudoku (71-80), Frame Sudoku (71-80), Unlike Mosaic (61-75), Airando (61-75).

Added sorting in the puzzle settings filter. Minor changes have also been made to the website design.

New puzzle type – Context.
We have also added 120 other new puzzles since the previous update: Tapa (61-75), Sudoku X (181-200), Battleships (61-75), Jigsaw Sudoku (161-180), Kinkonkan (61-75), Flower-4 Sudoku (61-80), Number Snake (61-75).