Melonless 20 Cob

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NE Group-Gloom tutorial next week
Tempo: Cob 6 + 2 Ice: PPDD | PPDD | PPI | PPDD | PPDD | PPI; 6 | 6 | 6 | 6 | 6 | 6, where "P" stands for preemptive Cob, "D" stands for delayed (reaction) Cob, and "I" stands for Ice

Here we have both front Cob (col 5-6) and super-front Cob (col 7-8). The main threats besides Digger MJ Dolphin are:
Giga: without freezing, it will smash the Cob after 2 waves
Pole Vaulter: preemptive Cob can't kill it. It can vault over the super-front Cob and bite the front Cob.
We either bomb them extra (PPDD) or freeze them (PPI). When frozen, Giga can't smash, and Pole Vaulter can't jump.
Also, when freezing the ambush, try to delay the timing to also freeze the next wave of zombies.

1:10 ICE3