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This problem could be used as an introduction to factorising quadratic expressions, or to develop students' fluency in this skill. The 'hook' of an interactive environment draws students in, encouraging them to be resilient as they strive to complete the challenge.
Students will need to be able to expand pairs of brackets of the form $(x \pm a)(x \pm b)$ before embarking on this problem - Pair Products provides a nice opportunity to practise this.
What does the constant term of the quadratic expression tell you about the numbers in the headers?
Factorising with Multilink offers a visual representation of the process of factorising quadratics, which some students may find helpful.
How Old Am I? invites students to solve a series of problems that can be modelled with quadratic equations, leading to some generalisations.