- Goal: Build a connected bridge path across the 7×7 grid.
- P1 (blue): Connect LEFT edge to RIGHT edge.
- P2 (orange): Connect TOP edge to BOTTOM edge.
- Controls: Tap/click any empty cell to place your bridge segment.
- Rift Shifts: Every 4 placements, an entire column collapses! All bridges in that column are destroyed and the cells become impassable. The collapse order is: columns 4, 2, 6, 3, 5, 1, 7 (displayed as 1-indexed). A warning stripe shows the next column to collapse.
- Connectivity: Paths connect orthogonally (up/down/left/right) — no diagonals.
- Strategy: Avoid building in columns about to collapse. Block your opponent's path while extending your own.
- Win: First player to complete a connected path from their start edge to their goal edge wins.
- Draw: If the board fills up with no winner, the game is a draw.