Spark Hatchery
Raise eight sparks into one hatchling at the central nest. Tap a spark, then an orthogonally adjacent cell to move it or merge with an equal level. Two level-1 sparks make level 2 anywhere. Two level-2 sparks make level 3 ONLY on a warm incubator (row 2/column 2 or row 4/column 4). Use BOTH incubators to unlock the gate above the center. Finally merge the two level-3 creatures into level 4 on the central nest. Dark walls block movement; the open gate is the only entrance to the nest. There are no new sparks, so preserve all eight units of energy. You have thirty moves/merges; selecting is free, and Undo rewinds the last move. Plan the second creature’s route before parking the first in the nest.
About this experiment
Raise eight sparks into one hatchling at the central nest. Tap a spark, then an orthogonally adjacent cell to move it or merge with an equal level. Two level-1 sparks make level 2 anywhere. Two level-2 sparks make level 3 ONLY on a warm incubator (row 2/column 2 or row 4/column 4). Use BOTH incubators to unlock the gate above the center. Finally merge the two level-3 creatures into level 4 on the central nest. Dark walls block movement; the open gate is the only entrance to the nest. There are no new sparks, so preserve all eight units of energy. You have thirty moves/merges; selecting is free, and Undo rewinds the last move. Plan the second creature’s route before parking the first in the nest. Keyboard: Tab and Enter/Space operate buttons; R restarts.