Donut Stacking (Japanese name...ドーナツ積み) is one of the TD Attack Openers, which can set up the first bag under the same conditions as Bakery TD. This opener was invented by Sioyaki.

1st bag

left roof(J-hold)

right roof(L-hold)

Hold the J piece for the left roof and the L piece for the right roof. The setup rate is 53.33% on one side and 80.00% on both sides. The explanation from here on is for the left roof.

2nd bag

ideal

ideal

ideal

compromise

A(J-hold)

B

Always TST. complete with only two stacking methods at a minimum. As you get used to it, learn A and B as well.

reference

• [Sioyaki's Opener Wiki]