Swipe/arrows/WASD slide. NW exchange swaps the top-left corner with row2/column2; NE swaps top-right with row2/column3. Golden outlines mark these cells. Each exchange adds one tile and one move. Undo restores the previous board. R repeats; Tab/Enter supported.

Original compact interpretation; scenario rules and goals differ from the inspiration. No copied assets. See source notes and complete QA replay sequences.