NumberPlace -SAKURA-

Hint gives you the technique, not the answer. It checks 28 techniques, names the one that works, and colors the board to show why that cell is forced. All 9,000 puzzles.

A Number Place (Sudoku) app with 9,000 puzzles.

■ Hints teach the technique, not the answer When you are stuck, tap Hint. It checks 28 solving techniques, finds one that works on your board, names it, and colors the cells to show why that number is forced. One hint per puzzle is free; after that, a short video unlocks another.

■ It checks your mistakes too If a number you placed is wrong, or you erased a note you still needed, the hint tells you that first. These checks do not use up a hint.

■ The guide now shows how to find them Thirteen techniques now come with a step-by-step "how to find it", for players who understand the pattern but cannot spot it on the board.

■ Puzzles 3,000 easy, 3,000 medium and 3,000 hard - 9,000 in all.

■ Also

• Highlight for the selected number
• Remaining count for each number
• Auto notes (medium and above)
• Undo for the moves you made