MindForge: Brain Training

MindForge is a small collection of brain-training games that runs entirely on your phone. Two of the four are the app's own — built on things this app had to solve anyway, and not found elsewhere. FOUR GAMES Digit Bridge. The same number, written in two different numbering systems. One side shows it in the digits you read; the other shows it in the digits you don't. Find the match among six candidates, where the wrong ones are near-misses: a transposition, a substituted digit, a reordering. It exists because this app already had to render Latin and Eastern Arabic numerals side by side, and it turns that into the question. False Light. One imaginary light falls on the whole board. Most tiles stand raised under it; a few are pressed flat. Sweep the pressed ones before the field resets. There is no text and no colour on this board at all — depth is the only channel — so it plays…