Learn a logic deduction
Start with the five-by-five Nonogram lesson. Its exact-fit row leads to overlap and crossing deductions. Each step has before-and-after diagrams, and Line Lab lets you test the same clues. Choose this when you want to understand why a move works; there is no time limit.
Share one device
Four in a Row has two local players taking turns dropping tokens into columns. Choose it for a simple alternating move. Reversi adds a different decision: a legal move must capture along a line, and a large early capture can give away a corner later. Both games are played on this device.
Play a round with a fixed finish
Basketball Arc gives you ten shots and a target of at least five baskets. Adjust angle and power, use the previous miss to choose one adjustment, and compare your next shot. Choose it when you want a defined number of attempts rather than an open-ended puzzle session.