Pin 
Puzzle 
Physics What is Fish Rescue?
Manipulate pins in a specific sequence to guide water toward a stranded fish while diverting lethal hazards like lava and predators.
How to Play
You see a chamber divided by sliding pins. A fish is stranded dry. Lava, water, and predators are trapped in other sections. Your goal is to get water to the fish. Interaction is "Slide-to-Open." Pulling a pin releases the contents. You must calculate the flow. Pulling the wrong pin drops lava on the fish (Fail). You must kill predators (drop lava on shark) or neutralize hazards (water on lava) before opening the final gate.
Pro Tips
Saving the fish depends on "Order-of-Operations." Always execute "Hazard-Clearance" first. Isolate the lava and turn it into stone or drain it off-screen. Only when the path is 100% safe should you pull the water pin. A pro strategy is "Pin-Feathering"—partially pulling a pin to release a small amount of fluid to test the flow dynamics without committing the entire volume, though most games binary-lock the pins.
Frequently Asked Questions
Can the fish survive lava?
No. Lava, toxic gas, and sharks are instant kills. The fish only needs Water.
What if the water and lava mix?
They become "Stone" (Obsidian). This solid block can be useful to plug a hole, or it might block your water path permanently. You must manage the mixing point carefully.
