線引きゲーム (also known as 棒消しゲーム) is a free app that allows you to play a popular strategy game. It offers both a single-player mode where you can challenge the CPU and a two-player mode to play with friends.

The game is a competitive pen-and-paper style game where two players take turns drawing lines to cross out vertical lines arranged in a pyramid shape. The objective is to be the player who takes the last line.

To play, simply tap or swipe the screen to draw a horizontal line that crosses a vertical line. Then, you can either confirm your move by tapping the "確定" button or make corrections by tapping the "訂正" button.

The game offers three difficulty levels to accommodate players of all ages, from elementary school students to adults. Can you defeat the strongest opponent?

With regular updates, the game has introduced new features over time. These updates include recording win-loss records for each opponent, adding an advanced mode for players who have achieved a victory against the strongest opponent, and increasing the number of character dialogue lines as a thank you for reaching 50,000 downloads.

Put your strategic skills to the test and enjoy the challenge of 線引きゲーム!