Tiles follow the Fibonacci sequence (1, 1, 2, 3, 5, 8, ...). Only identical numbers merge into the next Fibonacci value, with a special case for 1+1=2. Strategy: keep paired 1s handy, build stable pairs close to your anchor, and avoid scattering singles.
Tiles are 1, 3, 9, 27, ... Merging requires identical values. Strategy: value funneling is essential—stack 1s and 3s away from the anchor until pairs form, then feed them toward the pipeline.
Tiles are 1, 5, 25, 125, ... Identical merges only. Strategy: similar to Powers of 3 but slower growth; preserve more empty cells to allow pairing time.
Merges reduce value (e.g., 2048 + 2048 → 1024). Strategy: prioritize control and space; avoid accidental reductions near the anchor that collapse your hierarchy.
Requires three identical tiles to merge. Strategy: stage pairs deliberately, then create the third on-demand to avoid blocking lanes. Expect slower tempo—patience is rewarded.
Try each mode and refine your heuristics. Then return to the game and test your learning.