G15: Classic slide number puzzle

The G15 Puzzle (Game of 15 Puzzle) is a puzzle played on a square board that consists of numbered square tiles in random order with one blank (zero) tile. There are six board sizes to select, from 15 tiles (4x4 dimension) to 80 tiles (9x9 dimension). The goal of the game is to place the tiles from smallest to largest (ascending order), or from most significant to most minor (descending order), left to right, top to bottom, with a blank (zero) tile on the board’s bottom-right corner. Choose one of the three themes available and play with comfort. No connection is needed. Play anytime, anywhere.

Puzzle game is also known as Sliding Number/Tile Puzzle, Game of Fifteen, 15-puzzle (4×4 tiles). This app runs on Android 5.0 (Lollipop) API level 21 or higher, phones with standard screen sizes.

FEATURES:

12 board sizes in ascending/descending order:

G15a G15 (4x4) ascending order,

G15d G15 (4x4) descending order,

…

G80a G80 (9x9) ascending order,

G80d G80 (9x9) descending order.

Statistic data shows board played a minor step, duration, and time.

HOW TO PLAY

Select board/theme and press the play button (pictures #1, 2, 3, and 4). Arrange the tiles in ascending/descending order. Once the tiles are placed correctly, the message tells the player has won the game in x steps and y seconds (pictures #5 and 6). If the action is less than the saved most minor step, it replaces the saved least step as the player’s personal best. Press the Statistic button to show statistical data (picture #7).

Tiles are moved row-wise or column-wise. Each step can carry more than one tile (picture #8). If tile 36 is clicked, only tile 36 is transferred to the left and counts as 1 step. But if tile 21 is connected, then four tiles (36, 68, 56, and 21) are moved to the left and count as 1 step.