Fillomino

Original Fillomino: connected number regions must have the exact area, and equal-sized regions cannot share an edge. Twelve unique 5×5/7×7/9×9 puzzles include unclued regions and sizes above nine. Solo hints, private local 2 and exact online 2/3/4 races. Familiar numeric controls, complete region-size entry, multiple pencil candidates, immutable clues, zoom, original audio and English/PT-BR Help. Casual host-managed online results unverified. Portrait preferred; landscape supported.

Arrows/WASD select immediately; digits 1–9 or the visible number keypad fill region sizes. Click/tap selects; More sizes provides native entry for every size through the grid area, including 10–81. Space cycles size/blank; Delete/Backspace clears; Enter checks separately. Pencil/P adds or removes multiple candidates; right-click/450 ms touch selects pencil. Ctrl/Cmd+Z Undo, Ctrl/Cmd+Shift+Z or Ctrl+Y Redo. F1 Help; Esc closes Help/cancels size entry then pauses solo/local; online Help/entry stay live. Zoom, M mute and R confirmed restart. Fixed clues remain immutable. Exact local 2 private handoff; online 2/3/4 eight-minute races. Casual unverified results. Portrait preferred; landscape supported.