New puzzle type in the Multi-Sudoku category – Twin Corresponding Sudoku.
We’ve also added another 135 puzzles: Sudoku (580-600), Number Snake (76-90), Butterfly Sudoku (81-100), Kuroshuto (76-90), Sandwich Sudoku (101-120), Rainclouds (76-90), Sohei Sudoku (81-100).

Now, in the Kurosuto puzzle, when you right-click the check button (or hold your finger on it), the program correctly fills in only those values that are unambiguously determined by the rules.
Bugs related to the removal of candidates in the Killer Sudoku and Kendoku puzzles have also been fixed.

New puzzle type – Trinairo.
We have also added 145 other new puzzles since the previous update: Fill-a-Pix (121-140), Dosun-Fuwari (61-75), Super Samurai Sudoku (61-80), Sukrokuro (61-75), Shogun Sudoku (61-80), Hitori (141-160), Sumo Sudoku (61-80), Fillomino (76-90).

All currently known bugs have been fixed.

New puzzle type – Alternate Corners.
We have also added 135 other new puzzles since the previous update: Sandwich Sudoku (81-100), Simple Loop (76-90), Windmill Sudoku (61-80), Nuribou (61-75), Wing-5 Sudoku (61-80), Border Block (61-75), Sudoku (561-580).

In the Trilogy puzzle, you can now choose to use letters or numbers instead of symbols.

New puzzle type – Sukrokuro.
We have also added 155 other new puzzles since the previous update: Curving Road (76-90). Sohei Sudoku (61-80), Trace Numbers (76-90), Butterfly Sudoku (61-80), Battleships (76-90), Rossini Sudoku (101-120), Arrow Web (76-90), Flower-4 Sudoku (81-100), Tapa (76-90).

Fixed a bug when using candidates in the Kakuro puzzle.

New puzzle type – Nuribou.
We have also added 135 other new puzzles since the previous update: Sandwich Sudoku (61-80), Light and Shadow (76-90), Futoshiki (81-100), Context (76-90), Fill-a-Pix (101-120), Firumatto (76-90), Greater-Than Sudoku (111-120), Frame Sudoku (111-120), Kropki Sudoku (111-120).

Fixed a bug when placing candidates in the Sukaku puzzle.

New puzzle type – Border Block.
We have also added 120 other new puzzles since the previous update: Renkatsu (76-90), Link-a-Pix (101-120), Nawabari (76-90), No Neighbors (101-120), Mintonette (76-90), Sudoku (541-560), Number Cross (76-90).

Fixed a bug when placing candidates in the Matrax puzzle.

New Sudoku variant – Sandwich Sudoku.
We have also added 135 other new puzzles since the previous update: Rossini Sudoku (81-100), Pipelink (76-90), Kakuro (141-160), Snake (76-90), Fill-a-Pix (81-100), Haunted Castle (76-90), Link-a-Pix (81-100).

New puzzle type – Dosun-Fuwari.
We have also added 150 other new puzzles since the previous update: Dominion (76-90), Kendoku (61-75), Hebi-Ichigo (76-90), Link-a-Pix (61-80), Gappy (76-90), Girandola Sudoku (100-120), Rekuto (76-90), Bold X Sudoku (101-120), Usotatami (76-90).