Logi5Puzz+ 3x3 to 16x16 Sudoku 3.1.2

Logi5Puzz+ is an advanced version of the highly rated Logi5Puzz game, offering a range of additional features:

1. Configurable grid sizes from 3x3 to 16x16, suitable for all supported devices
2. Completely free of advertisements and does not require an internet connection
3. Optional smart/manual notes (pencil mark), hints, and passcode lock
4. The ability to play two games simultaneously and easily switch between them
5. Support for macOS

Logi-5 Puzzle is a variation of the popular Sudoku game. In this version, a 5x5 grid is divided into five irregular, or pentomino, regions, each consisting of five squares of the same color. The objective is to fill the grid so that each row, column, and region contains the digits 1 to 5 exactly once.

Logi5Puzz+ expands on the grid sizes available in the original game, ranging from 3x3 to 16x16. The regular option allows players to choose a 9x9 grid with a 3x3 square block for each region, providing a familiar Sudoku experience. For irregular grids, the shape of each region is randomly generated, offering unique challenges across all sizes.

The app generates a vast number of puzzles for each grid size, with no predefined patterns. A few numbers are preset for each puzzle, and players must complete the rest. Each puzzle has a unique solution. By generating puzzles on the fly instead of relying on a large database of pre-generated puzzles, the app can offer virtually unlimited puzzles while requiring minimal storage space.

Logi5Puzz+ offers excellent value:

1. It includes both Sudoku and Logi-5 puzzles, providing a diverse range of options with a single purchase.
2. It caters to both beginners and expert players, offering grid sizes from 3x3 up to 16x16.
3. A universal purchase allows access across multiple Apple devices, including Mac, iPad, iPhone, and iPod touch.
4. All features and unlimited puzzles are included, with no in-app purchases required.
5. Family sharing is supported.

The app can be a valuable educational tool for beginners and young children interested in learning Sudoku. Starting with smaller grid sizes like 3x3, users can gradually progress to larger grids. The inclusion of irregular regions adds an element of fun not typically found in regular Sudoku. Advanced players can challenge themselves with irregular grids in sizes ranging from 9x9 up to 16x16.

The app also offers configurable hint options and the ability to set a passcode lock. This feature allows parents, for example, to ensure that children complete puzzles honestly without relying on hints or restarting.

When playing the game, users can tap on a square to select a digit from a list or clear the square by selecting the blank button. Notes (pencil marks) can be enabled through the "Setup" menu, automatically filling in tiny notation digits or allowing for manual editing by selecting the notes button.

The app provides various additional functions accessible through buttons such as "New" (to start a new puzzle), "Check" (to verify correctness), "Undo" (to reverse actions), "Redo" (to restore actions reversed by "Undo"), "Setup" (to configure settings), "Swap" (to play two games simultaneously and switch between them), "Help" (for instructions), and "Hint" (if hints are enabled through "Setup").

If digits become difficult to read on smaller iPhone screens or when viewing notes, users can simply zoom in on the grid using two-finger pinches and panning.