Balconia Math : 21 Marbles 2.0.1

Experience a new type of math game aligned with the Math Revolution advocated by visionaries like Youcubed and AOPS. Specifically designed for children aged 6-11, "21 Marbles" provides a unique opportunity for players to engage in critical thinking and reasoning, rather than being subjected to quizzes or time constraints.

The game's level progression functions as a natural exercise in the "low floor, high ceiling" concept. As players progress through the challenging puzzles, even adults can find enjoyment in the game due to its friendly difficulty curve that ensures everyone remains engaged.

Younger players will benefit from the game's ability to practice basic arithmetic facts in an instinctive manner, while adults can find relaxation similar to playing peg solitaire.

With intuitive rules, "21 Marbles" eliminates the need for instructions. Players collect marbles - available in various colors and designs - one by one. In each level, the won marbles, each representing the number 10, randomly split into pairs of smaller marbles: either a 9 and a 1, an 8 and a 2, a 7 and a 3, a 6 and a 4, or two 5s. The marbles are then positioned randomly on a board and can be merged to form 10s by combining pairs that sum up to 10. While it is always possible to recover all 10s, strategic thinking is required. The inclusion of an "undo" button allows players to retrace their steps and identify any mistakes made. Developing forward-thinking skills becomes essential and serves as the primary educational aspect of the game.