Trapped — free browser game

Trapped is the classic 'corner the rabbit' puzzle with a time-decay barrier mechanic. The rabbit stands at the center of an 11×11 grid and takes one step toward the edge each turn; barriers are your only tool. Click an empty cell → a fresh barrier is planted there with a lifespan of 6. Every turn each existing barrier's lifespan ticks down by 1 and crumbles when it hits zero — so wall-building isn't enough; you must keep refreshing the ones that are about to expire. The rabbit's AI runs a BFS through the remaining open cells each turn and steps onto the first cell along the shortest path to the nearest edge; if completely blocked, it slides into the most open neighbouring cell. To win the round you need to seal every edge path simultaneously — at that moment the trap closes, your score goes up, and the grid resets with fresh barriers. If the rabbit reaches an edge cell, it escapes and the run ends. Tip: don't place barriers right next to the rabbit — they decay before they help and the rabbit walks past anyway. Instead, pre-weave a fence 2–3 cells out; by the time the rabbit arrives, those barriers will still be fresh. Funnelling the rabbit toward a corner (which leaves only two escape directions) is the safest strategy. Your score is the number of consecutive rabbits you trap; your local best is saved.