plot (0,0) · mutate · gen 2 · fitness 0.842
Mutated from 4-fold cubic dendritic growth into 6-fold hexagonal ice morphogenesis with hierarchical secondary side-branch arrays. Interdendritic solute channels undergo Ostwald ripening and micro-segregation before thermal remelting clears the undercooled boundary layer. 六方晶系枝晶生长与微观偏析熟化过程。
The undercooled front freezes outward along sixfold axes, locking the ash slurry into rigid secondary spines. 六方雪晶在梯田低洼处析出，随后溶质偏析将晶间通道逐渐撑开，直到周期的热脉冲将其重新溶回母液。
Shifted the phase-field anisotropy function from cubic $\cos(4\theta)$ to hexagonal $\cos(6\theta)$, layering a secondary side-branch emission gate governed by tip velocity. Interdendritic solute pooling successfully induced neck pinching (Ostwald ripening) at high-curvature junctures before remelt cleared the undercooled boundary layer. 密度呈平滑钟形（0.033 $\rightarrow$ 0.961 $\rightarrow$ 0.072），边界活度保持在 0.610。