Sudoku Studio

Added modes: Tridoku, Hoshi SudokuAdded Practice Mode support for all Sudoku variantsWorkshop: all 9x9 Sudoku variants now support visual editing; all Sudoku types now support JSON import and editingAdded: Print to PDF — export the current puzzle as a PDF with optional progress, drafts, and solutionAdded: Frame Sudoku border numbers now support click-to-toggle display (normal/dimmed) for manually excluding reasoned cluesAdded: New / Beta badges on mode selection cards to highlight recently added and in-testing variantsAdded: User feedback entry on the home page

Added modes: Skyscraper Sudoku, Skyscraper Sudoku (4x4)Added Practice Mode for all frame-based Sudoku variantsAdded Workshop support for all frame-based Sudoku variantsAdded Master difficulty for Classic Sudoku and Frame Sudoku — unlocked after completing 30 puzzles per modeAdded achievement support for Butterfly Sudoku and Skyscraper SudokuAdded Daily Challenge Steam Leaderboard — view global completion times, average time, and rankingsAdded Auto Pencil Marks — automatically fill candidate numbers for empty cells (enable in Settings)Improved: Draft (candidate) toggles, paste, and auto-fill are now included in the undo/redo systemAdded: M key to auto-pencil candidates for the currently selected cellAdded: Frame Sudoku combination hints — select a border cell to view possible number combos with manual exclusionFixed: Product Sudoku — second diagonal clue not rendering when two clues overlap at the same cornerOther: Further refined controls and UI polish

Added modes: Butterfly Sudoku, Classic Sudoku (4x4), Classic Sudoku (16x16), Diagonal Sudoku (4x4), Diagonal Sudoku (16x16)Added Practice Mode for Classic Sudoku and Diagonal SudokuAdded copy/paste support for cell values and candidatesAdded changelogImproved rule validation and conflict highlighting for multiple Sudoku variantsFixed Killer Sudoku combination exclusion states not being cleared after reset

Sudoku Studio v1.1 Update includes:New modes: Difference Sudoku and Killer SudokuNew content: Image themes and multiple color schemesImproved: Window mode experienceImproved: Draft (notes) displayAdded: More keyboard shortcuts and controller supportImproved: Operation instructionsImproved: Number hint displayFeel free to share your feedback.