Levels 7–10

Triangle Builder

Draw unused neighbouring edges and claim elementary unit triangles while turns alternate.

How to play

Select two neighbouring lettered dots or use a Join button. Completing a unit triangle claims it for the current player. A shared edge can claim two, and the turn always passes.

An optional one-edge lesson leads to a tiny two-face board; later shared levels use four, six and nine faces. Play with Momo or together. Sun uses solid edges and Moon dashed edges. Compare scores only after every edge is drawn; ties are welcome practice. Undo, Reset and explicit Next board retain discoveries.

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