Hen Nested Dash

The board starts empty. Below it, rings appear one at a time. Some rings are single — one color, one layer. Others are double — an outer ring with a second ring tucked inside. Drag any ring onto the grid and drop it into an empty cell. The ring stays where you put it.
After each placement, the game scans for lines. Three or more rings of the same color aligned horizontally or vertically disappear from the board. Points are added to your score for every ring removed.
Double rings behave differently when they are part of a cleared line. If a double ring gets removed because its outer color matches the line, the outer layer vanishes but the inner ring stays behind. That inner ring remains in the same cell and becomes a single ring of its own color. It can still participate in future merges if it forms another line later. If the inner ring also matches the line, it clears along with everything else.
The board fills as you place rings. Cleared lines open up space, but new rings keep appearing below. Eventually, you run out of empty cells. When no cells remain for the next ring, the game ends.
When the session stops, a result screen appears with your final score. A hen runs along a path beneath it while your points tally up from zero. The distance she covers depends on how large the final number is. When the tally stops, she stops.
The double rings add an extra layer of decision-making. Placing a double ring means committing two colors to one cell. The outer ring counts for line formation immediately. The inner ring only becomes active after the outer one is removed. You can use double rings to set up future lines while clearing current ones. A well-placed double ring keeps the board active longer because it leaves something behind after it clears.
Single rings occupy one cell and one color. They clear in lines and disappear completely. Use them to fill gaps or complete lines quickly.
The available rings rotate randomly. You see one ring at a time. You cannot skip it. You must place it somewhere. This forces you to adapt rather than waiting for the perfect piece. The grid size stays consistent throughout the session. The challenge comes from the increasing density of the board. Early placements are easy. Later placements become tighter. You have to think ahead about where the next ring can go.
When the board fills completely and no empty cells remain, the session ends. The game stops immediately. The result screen is the only place where the hen appears. She runs along a path from left to right. Her distance is tied directly to your final score. When the score finishes counting, she stops.