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This is the starting pattern:

⬛⬜️⬛⬛⬜️⬜️
⬛⬛⬜️⬜️⬛⬛
⬛⬜️⬜️⬜️⬛⬜️
⬜️⬛⬜️⬜️⬜️⬜️
⬛⬜️⬜️⬛⬛⬛
⬛⬛⬛⬜️⬛⬛

⬛ = off/collapsed
⬜️ = on/extended

Now hit all pillars I colored 🟥 and don't touch the 🟩

🟥🟥🟥🟥🟩🟥
🟩🟩🟥🟩🟥🟩
🟥🟩🟥🟩🟥🟩
🟥🟥🟥🟥🟩🟩
🟩🟥🟥🟥🟥🟥
🟩🟩🟥🟩🟥🟩