How to Beat Level 18 in I'm Not a Robot - Sisyphus Challenge
TL;DR
- Objective: Complete the Sisyphus challenge by identifying and selecting fire hydrants in a continuously refreshing grid.
- Steps: Systematically select all fire hydrants, continue through multiple rounds, recognize completion when no hydrants remain.
- Verification: Click "Verify" only when a grid appears with NO fire hydrants present.
- Risk: Premature verification or missing hydrants will result in failure.
Level 18 presents the Sisyphus challenge, named after the Greek mythological figure condemned to repeat an endless task. You'll identify fire hydrants in approximately 30 total selections before completion.
The Sisyphus Challenge
This level tests your ability to maintain focus during repetitive tasks, quickly identify fire hydrants in various contexts, and recognize when the task is truly complete. The process continues until all fire hydrants are cleared from rotation.

Level 18 Sisyphus Challenge
Step-by-Step Solution
Step 1: Initial Assessment
Scan the entire grid quickly and identify obvious fire hydrants first. Look for the characteristic cylindrical shape with protruding nozzles. Don't rush - accuracy prevents having to repeat selections.
Step 2: Selection Process
Click on all images containing fire hydrants, including partial views if the hydrant is clearly visible. Be thorough but avoid clicking on similar objects like mailboxes, bollards, or street signs.
Step 3: Continuous Iteration
After each selection, new images will load. Repeat the identification process systematically. Stay focused despite the repetitive nature and keep track mentally of your progress through approximately 30 total hydrants.
Step 4: Completion Recognition
Eventually, a grid will appear with NO fire hydrants. This is your signal that the task is complete. Only then click "Verify" to proceed to the next level.

Fire hydrant selection in progress
Fire Hydrant Identification Guide
- Classic Fire Hydrants: Traditional red, yellow, blue, or other colored variants
- Contextual Appearances: Street-level views, partial views, different lighting conditions
- Avoid Confusion: Don't select mailboxes, bollards, street signs, or construction equipment
Common Mistakes to Avoid
- Premature Verification: Don't verify if hydrants are still present in the grid
- Missing Partial Views: Include hydrants that are partially visible but clearly identifiable
- Selecting Similar Objects: Focus on distinctive hydrant features like nozzles and caps
Pro Tips
- Stay Systematic: Scan left-to-right, top-to-bottom consistently
- Take Micro-breaks: Blink and refocus between selections to maintain accuracy
- Trust the Process: The task will end after approximately 30 fire hydrants
- Don't Overthink: If it looks like a fire hydrant, it probably is
Frequently Asked Questions
Q: How many fire hydrants should I expect to identify?
A: Approximately 30 fire hydrants total across multiple grid refreshes. The exact number may vary slightly.
Q: What if I'm stuck in an endless loop?
A: Double-check that you're not missing any hydrants or clicking on non-hydrant objects. Be patient - the task does have a definite end.
Q: When exactly should I click "Verify"?
A: Only when a grid appears with absolutely no fire hydrants present. This signals task completion.
Summary
Successfully completing Level 18 requires patience, systematic observation, and persistence through approximately 30 fire hydrant identifications. The key is maintaining focus during the repetitive process and recognizing true completion when no hydrants remain in the grid.