Tricky Test 2 Level 19

Overview

This level is a light-bulb circuit puzzle with a broken-bulb trick. The instruction at the top reads "Turn on all the light bulbs on the screen." Three empty bulb sockets sit in a row at the top, and below them a switch panel with four toggles labeled ON ON ON ON. Toggling the switches lights up some bulbs, but no matter which combination you try, the third bulb will not light up — it is burned out. The trick is that one of the bulbs can be physically dragged out of its socket (removed), so you only have to turn on the working bulbs.

• Difficulty: Hard
• Estimated moves: several switch taps plus one drag

Step-by-Step Solution

1. Read "Turn on all the light bulbs on the screen." Look at the three bulb outlines and the four switches.
2. Tap the switches to toggle them up/down. Experiment with the combinations. You will find that two of the bulbs light up (turn yellow) while the third stays dark no matter what you do.
3. The third bulb is burned out and cannot be turned on by any switch. Instead, press and hold on that dark bulb and drag it off / out of its socket, removing it from the screen.
4. With the broken bulb removed, only the two working bulbs remain, both lit. The game considers "all the light bulbs on the screen" to be lit once the broken one is gone.
5. The level completes with the success animation; only two yellow lit bulbs remain visible.

Strategy & Reasoning

The puzzle looks like a logic puzzle about which switch controls which bulb, but the four switches vs three bulbs mismatch is the clue. After trying combinations, you discover one bulb simply never lights. The Tricky Test 2 twist is that you are allowed to remove the broken bulb entirely; "all the light bulbs on the screen" then refers to the bulbs that remain, which are both lit.

This is a classic "remove the broken item" trick. Players waste time toggling switches in every possible combination, while the real move is to drag the unlightable bulb away. Once it is gone, the level instantly completes.

Tips & Common Mistakes

• Common mistake: Endlessly toggling the four switches trying to find a combination that lights all three. One bulb is broken; no switch combination will light it.
• Common mistake: Tapping the dark bulb instead of dragging it. You have to press and drag it out, not tap it.
• Tip: Once you have two bulbs lit and the third stays dark no matter what, grab the dark bulb and drag it off screen.
• Tip: The success state is two yellow lit bulbs and no third dark outline.
• Tip: If you toggle switches and bulbs turn off, toggle them back so the two working ones are lit before removing the broken one.