Pencilmark Sudoku

A clean Sudoku app built for pencil marks, smart hints, and practice. Select multiple cells, mark pairs quickly, and learn the logic behind each solve.

Pencilmark Sudoku is a focused Sudoku app for players who like solving with notes, patterns, and logic.

Start with classic puzzles, use outer and inner pencil marks, select multiple cells at once, and work through hints that explain the next logical step. Beginner boards emphasize simple scanning and Schneider pairs, while practice puzzles help you sharpen specific techniques.

Features:

• Classic Sudoku puzzles by difficulty
• Fast pencil-mark entry
• Multi-select for marking related cells
• Smart hints with step-by-step logic
• Practice mode for solving techniques
• Auto-checking and conflict highlights
• Portrait and landscape layouts
• Local progress and stats saved on device

No accounts, ads, tracking, or daily streak pressure. Just Sudoku, notes, hints, and practice.