ECHOTRAP
VVIT GUNTUR ACM Student Chapter is organizing an online technical event EchoTrap on Friday, May 16, 2025.
• The team size: 1
Event Poster
EchoTrap was a ten-level digital escape challenge designed to test logic, memory, and problem-solving.
The journey began with Level 1, where players had to carefully observe and place images in the correct positions to clear the stage.
Level 2 presented a scrambled command, and only those who could rearrange the command correctly were allowed to proceed.
In Level 3, participants were faced with the classic 8-queens puzzle, requiring them to position all queens on a chessboard without any attacking each other. Level 4 brought a tricky challenge—spotting the mistake hidden within a binary tree structure. Level 5 shifted gears, asking players to find the shortest path to a goal, testing their efficiency and pathfinding skills. Then came Level 6, a maze that had to be traversed with precision. Players had to locate a key and use it to unlock a blocked path.
With the key in hand, Level 7 revealed a locked number sequence. Players had to unlock and memorize it to move ahead. In Level 8, they faced a cryptic pattern and were tasked with unlocking and remembering it to surpass the level. Level 9 took them into a virtual queue where they had to perform a series of queue operations using a previously acquired key.
Finally, Level 10 challenged participants to unlock a stack and execute a set of stack operations, completing their escape from the AI-controlled trap.
Game Structure and Levels
Level 1 – Image Insight
The first trap tested players spatial awareness. Participants had to observe and place scattered images in their correct positions.
Success unlocked the path to the next room — a warm-up for the mind.
Level 2 – Command Crafter
Here, a scrambled command string
awaited correction. Students had to unscramble and reorder the command logically, revealing their programming instincts and syntactic accuracy.
Level 3 – Queen’s Gambit
Players faced a chessboard where they had to place 8 queens such that none could attack another. It was a classic logic problem demanding spatial visualization and strategic thinking.
Level 4 – Tree Trouble
A binary tree was shown — but it had an error. Students had to analyze the structure and identify the incorrect node to move ahead.
Level 5 – Pathfinder
Here, a complex map appeared. Students had to determine the shortest path through it, testing their understanding of graph traversal and path optimization.
Level 6 – Maze Mastery
Now came the test of navigation: a maze filled the screen. Students had to find a key and use it to unlock a block, combining exploration with goal-oriented strategy.
Level 7 – Sequence Unlock
With the key from the previous level, a locked sequence appeared. Participants had to unlock and remember the sequence to progress — a blend of memory and pattern interpretation.
Level 8 – Pattern Decoder
A cryptic pattern emerged. Players had to identify, decode, and remember it using the previously acquired key. Precision and recall were crucial.
Level 9 – Queue Quest
The next level presented a virtual queue. Using the key, players unlocked it and had to perform specific queue operations in the correct order. It tested their data structure knowledge under pressure.
Level 10 – Stack Survival
The final task was to unlock a stack and execute the listed operations step-by-step. It was the last wall between the player and victory — a true test of logic and order.
The Final Outcome: NEXUS’s Judgement
Victory:
If a participant cleared all levels efficiently, the screen lit up in bright green with the words “FREEDOM ACHIEVED!” — they had
escaped the AI's grasp, earning their freedom and glory.
Defeat:
For those who failed, a glitchy red “RECAPTURED” screen appeared. NEXUS had prevailed, and their escape attempt was foiled — but each step gave valuable lessons.
EVENT WINNERS
