AI Olympiad Problem Checklist

• 1 · Day 1 Find the Order Audio
• 2 · Day 1 Robot Chasing
• 3 · Day 1 Potato NLP
• 4 · Day 2 Double Agent Dilemma Vision
• 5 · Day 2 Ghost of the Machine NLP
• 6 · Day 2 IOAI Field

0/6 solved in this round

• 1 · Day 1 Find the Order (Same task as Individual Contest 1) Audio
• 2 · Day 1 Robot Chasing (Same task as Individual Contest 2)
• 3 · Day 1 Potato (Same task as Individual Contest 3) NLP
• 4 · Day 2 Double Agent Dilemma (Same task as Individual Contest 4) Vision
• 5 · Day 2 Ghost of the Machine (Same task as Individual Contest 5) NLP
• 6 · Day 2 IOAI Field (Same task as Individual Contest 6)

0/6 solved in this round

• 1 Operation Night Watch Audio
• 2 Robot Delivery Academy
• 3 The Analytical Language of John Wilkins NLP

0/3 solved in this round

• 1 Radar
• 2 Chicken Counting Vision
• 3 Concepts NLP
• 4 Restroom Icon Matching Vision
• 5 Antique Painting Authentication Tabular
• 6 Pixel Efficiency Vision

0/6 solved in this round

• 1 Radar (Same task as Individual Contest 1)
• 2 Chicken Counting (Same task as Individual Contest 2) Vision
• 3 Concepts (Same task as Individual Contest 3) NLP
• 4 Combinatorial Word Segmentation NLP
• 5 Synthetic Speech Detector Audio

0/5 solved in this round

• 1 Factory of the Future

0/1 solved in this round

• 1 Radar
• 2 Satellite Weather Forecasting Vision
• 3 Chameleon NLP

0/3 solved in this round

• ML Lost in Hyperspace
• NLP Help BOBAI
• CV Madarian Cow Vision

0/3 solved in this round

• 1 AI-Generated cover for a song: Love by Maria Ilieva Vision
• 2 AI-Generated Music Video Challenge: Love by Maria Ilieva Multimodal

0/2 solved in this round

• ML Save the Factory: Feature Engineering Challenge
• NLP Help BOBAI: Classify an unknown language
• CV Lost in Translation: Retraining an AI on New World Terms Vision

0/3 solved in this round

• 1 Cosmic Probe: Star–Galaxy–Quasar Classification from SDSS Photometry Tabular
• 2 Audio Event Detection Audio
• 3 Molecular Energy and Dipole Moment Prediction
• 4 Spot the Spots: Individual Identification of Leopard Cats Vision

0/4 solved in this round

• 1 Faithful Explanations NLP
• 2 TextSnap Vision
• 3 Clockwork Ellipses Time series

0/3 solved in this round

• 1 Stowaway
• 2 Interleaved Lines NLP
• 3 Odd One Out Vision

0/3 solved in this round

• 1 The Stochastic Rift Reinforcement learning
• 2 Project KRAKEN Multimodal
• 3 Star Observatory Vision

0/3 solved in this round

• 1 Terminal Cuties Segmentation Vision
• 2 Day 1 NLP (Message Author Re-identification) NLP
• 3 Kaggleforces Tabular

0/3 solved in this round

• 4 Day 2 Audio (Sped-up Speech Detection) Audio
• 5 Creatures of the Static Vision
• 6 CutiesNLP NLP

0/3 solved in this round

• 1 Code Stars Tabular
• 2 Terminal Animals Vision
• 3 Find Comments NLP

0/3 solved in this round

• 1 Tricy Table Data Tabular
• 2 Underfitting CV Vision
• 3 Evading AI-Generated Text Detection NLP

0/3 solved in this round

• 4 Cluster Pictures Vision
• 5 Broken BERT NLP
• 6 The Hogspell Challenge Multimodal

0/3 solved in this round

• 7 Cuties Segmentation Vision
• 8 Intent Detection and Slot Filling NLP

0/2 solved in this round

• ML Constrained Headline Generator NLP

0/1 solved in this round

• 1 The Clothing Sale Vision
• 2 Ace the Grades Tabular
• 3 Segment & Conquer Tabular
• 4 Earth's Pulse Time series

0/4 solved in this round

• 1 Road Segment Detection Vision

0/1 solved in this round

• 1 Binary Classification on Synthetic Tabular Data Tabular

0/1 solved in this round

• 1 Hallucinations Multimodal
• 3 Are You Surprised? (Facial Emotion Recognition) Vision
• 4 Hidden Digits Vision

0/3 solved in this round

• 1 Wild Blueberry Yield Prediction Tabular
• 2 Nahuatl–Spanish Sentence Retrieval NLP
• 3 Training-Free Statistical Defect Localisation in Latent Space Vision

0/3 solved in this round

• 1 Air Temperature Forecasting Time series
• 2 CyrillicCross: Recovering Visual Features Across Languages NLP
• 3 SAT Classifier: Predicting Satisfiability of 3-CNF Boolean Formulas NLP
• 4 Salary Prediction Tabular
• 5 Embedding Compression for Clustering NLP
• 6 Dual-Task Tile Recognition Challenge Vision

0/6 solved in this round

• 1 AI Fundamentals Challenge
• 2 Applied Problem Solving: Loan Default Prediction Tabular

0/2 solved in this round

• 1 User Intent Recognition in Zhihu Scenarios NLP
• 2 Embodied Intelligence Sim2Real State Prediction Based on NVIDIA Isaac Sim Time series
• 3 Product · Sum Vision
• 4 Maze Information Prediction

0/4 solved in this round

• 1 Compound Word Segmentation NLP
• 2 Chemical Reaction Kinetics Simulation Tabular
• 3 Synthetic Speech Detector Audio
• 4 Grid Collage Classification Vision

0/4 solved in this round

• 1 Predicting the Shooting Percentage of Basketball Stars Tabular
• 2 Real or Fake Image Recognition Task Vision
• 3 News Text Classification Task NLP
• 4 Solving the Pendulum Motion with Missing Data Time series

0/4 solved in this round

• 3 The Five Artists Vision

0/1 solved in this round

• 1 Heart Disease Risk Prediction Tabular

0/1 solved in this round

• 1 Binary Classification in Space Tabular
• 2 The Enigma of Wine Quality Tabular
• 3 Fashion Classifier Vision
• 4 Galaxy10 Classification Vision
• 5 Cyprus Cars Price Oracle Tabular
• 6 Multimodal Skin Lesion Classification Multimodal
• 7 Broken BERT NLP
• 8 The Last Frequency Audio
• 9 Cuties Segmentation Vision
• 10 Document Layout Analysis Vision

0/10 solved in this round

• 1 Where Is Spy-C? Multimodal

0/1 solved in this round

• 1 Mushroom Mission on ExoMycelia-7 Multimodal

0/1 solved in this round

• 1 Memory Trace Tabular
• 2 Planet X Model Selection Tabular
• 3 Data Reduction Optimisation Tabular

0/3 solved in this round

• 1 Semantic Equivalence of Questions NLP
• 2 Image Classification with Weak Labels Vision
• 3 Predicting Students' Future: The Secret of the Lost Code Tabular

0/3 solved in this round

• 1 Blind Curator Vision
• 2 Sentiment Update NLP
• 3 Model Extension Vision

0/3 solved in this round

• 1 Theory Round
• 2 Corrupt Codex Tabular
• 3 Shredded Documents Vision
• 4 Constrained Generation NLP

0/4 solved in this round

• A Counting Snowmen Tabular
• B Production Line Quality Control Tabular

0/2 solved in this round

• 1 Theory Questions
• 2 Catacomb Adventure Reinforcement learning
• 3 Petike and the Parametric Palette Vision
• 4 Epic Emojis NLP
• 5 Classifier Clone

0/5 solved in this round

• 1 University Admissions Tabular

0/1 solved in this round

• El-1 Scientific Task – Neural Playground
• El-2 Scientific Task – ChatGPT
• CV-1 Hidden Treasure Vision
• CV-2 Smart Farmer John Vision
• CV-3 Transfer Learning Vision
• CV-4 Music Classification Vision
• NLP-1 Spam Text Messages NLP
• NLP-2 Twitter Sentiment Analysis NLP
• NLP-3 Machine Translation NLP
• NLP-4 Needle in a Haystack NLP

0/10 solved in this round

• Part 1 Theory
• Part 2 Curve Quest — Solving Polynomial Problems from Graphs Multimodal

0/2 solved in this round

• 1 Stage 1 Test (18 January 2026)
• 2 Stage 1 Alternate Test (28 February 2026)

0/2 solved in this round

• Part 1 Theory (Part 1)

0/1 solved in this round

• Theory Theory Problems
• 1 Analogy Oracle: Cracking the Code of Word Relationships NLP
• 4 SmogCast: Forecasting Air Pollution in Bangalore & Delhi Time series
• 5 Classifying the Unnown: Decoding the Mystery of Genetics and Terrain Tabular
• 6 Drone Patrol: From Vivid Landscapes to Monochrome Missions Vision

0/5 solved in this round

• 1 Stage 1 Test

0/1 solved in this round

• 2.1 Hybrid Riverflow Time series
• 2.2 Complicated Outer-Space Signals Multimodal
• 2.3 Missing Token NLP

0/3 solved in this round

• E Essay Paper
• P1 Monte Carlo Simulation
• P2 Exploratory Data Analysis of Cinema Ticket Sales Tabular
• P3 Face or Flag? Vision
• P4 Shuffled Documents NLP

0/5 solved in this round

• A Online Selection Test

0/1 solved in this round

• 1.3 Math Word Solver NLP
• 2.3 Tweet Emotion Class and Intensity NLP

0/2 solved in this round

• 1 Lever Position from Mouse Brain Activity Time series

0/1 solved in this round

• 1 Classify Gases from Multimodal Information Multimodal

0/1 solved in this round

• Day 2 Which Paper Is Newer? NLP

0/1 solved in this round

• 1 Image Restoration Vision
• 2 Football Player Clustering Tabular
• 3 LeetCode Difficulty Prediction from Solution Descriptions NLP
• 4 Missing Word Position in Kazakh Sentences NLP

0/4 solved in this round

• 1 Dieting Network
• 2 Dropped Tarots Vision

0/2 solved in this round

• 1 Eye for Feature Engineering Tabular
• 2 Footprint of a Letter

0/2 solved in this round

• 1 The Whispering Codru NLP
• 2 The Golden Card of the Codru Tabular

0/2 solved in this round

• ML Sentinel of the Metropolis Tabular
• CV Crowd Counting Vision
• NLP Embedding Secrets

0/3 solved in this round

• 1 The Mistic Alpaca Tabular
• 2 IOAI Perú: Information Retrieval Challenge NLP
• 3 AI Challenge: Mission EMO — Teaching Machines to Feel Vision

0/3 solved in this round

• 1 The "Bayanihan" Crisis Concept Extractor Multimodal
• 2 Holy Week Maritime Reconnaissance Vision
• 3 Katotohanan: Filipino Fake News Classifier NLP

0/3 solved in this round

• T Theory & Technical Concepts
• P1 Typhoon Intensity Estimation Vision
• P2 The Eye of the Storm Vision

0/3 solved in this round

• P Quezon City Rainfall Sprint Time series
• T Theory Assessment

0/2 solved in this round

• 1 Decision Localisation Vision
• 2 The Void NLP
• 3 Pixels Vision
• 4 Hidden Categories

0/4 solved in this round

• 1 Painter's Optimiser Vision
• 2 Token Predictor NLP
• 3 Decision Trees Tabular
• 4 Colourisation with a GAN Vision

0/4 solved in this round

• 1 Convolutional Filters Vision
• 2 Multi-Label Classification Vision
• 3 Whisper or Scream? Audio
• 4 Semantic Change of Words NLP
• 5 Multispectral Data Segmentation Vision

0/5 solved in this round

• 1 Inpainting with Implicit Neural Representations Vision
• 2 Machine (Un)learning Vision
• 3 Translation Styling NLP
• 4 Data Prototypes Vision

0/4 solved in this round

• 1 Non-Normal Distribution Vision
• 2 Credit Taking – Explaining Model Decisions Tabular
• 3 Source Extraction NLP

0/3 solved in this round

• 1 Coin Counting Machine Vision
• 2 Hallucination Detection NLP
• 3 ECG Signal Disorder Detection Time series
• 4 Noise in Data Labels Vision
• 5 Hidden Subsequences

0/5 solved in this round

• 1 Ciphers NLP
• 2 Anomaly Detection Vision
• 3 Self-Supervised Learning (A Classifier in Two Minutes) Time series

0/3 solved in this round

• 1 Machine Translation NLP

0/1 solved in this round

• 1 Adversarial Attacks Vision
• 2 Imbalanced Classification Vision
• 3 Dependency Parsing NLP
• 4 Colour Quantisation Vision
• 5 Object Tracking Vision
• 6 Pruning
• 7 Riddles NLP

0/7 solved in this round

• 1 The Archive of Contradictions NLP
• 2 Puzzle Vision
• 3 The Talkative Robots Audio

0/3 solved in this round

• 1 Glitch Hunter 2: G3P1T Reloaded Vision
• 2 The Legend of Algorel NLP
• 3 Video Shazam Multimodal

0/3 solved in this round

• 1 Gender biases shall not pass: Test-time debiasing of pretrained embeddings Vision
• 2 The Broken Keyboard Vision
• 3 The Ghost in the Machine Tabular

0/3 solved in this round

• 1 Robots in the Maze Tabular
• 2 Fire Distinguisher Tabular

0/2 solved in this round

• 1 Sparks Tabular
• 2 Juditis Mission Tabular

0/2 solved in this round

• 1 Museums in Romania Tabular
• 2 Analysis and Classification of Churn in Telecommunications Services Tabular

0/2 solved in this round

• 1 Polyglot NLP
• 2 Too Easy Fairy Vision
• 3 Smart Warehouse Reinforcement learning

0/3 solved in this round

• 1 What do you see Multimodal
• 2 Corrupt Decoder Vision
• 3 Fake it until you make it Vision

0/3 solved in this round

• T Theory Test (21 problems)

0/1 solved in this round

• 1 Professor Grammar vs. the Box Avalanche Vision
• 2 Fake friends.. NLP

0/2 solved in this round

• 1 Future Text Understanding NLP
• 2 A matter of perspective Vision

0/2 solved in this round

• 1 What does the fox say? NLP
• 2 Music Sheet Optimizer Vision

0/2 solved in this round

• 1 Asteroids Tabular
• 2 The Orient-Inator vs. Perry the Platypus Vision

0/2 solved in this round

• 1 The Good Nurse vs. Andrew Anarchy Tabular
• 2 Nuclear Data Analysis from a Webcam Vision

0/2 solved in this round

• 1 Soil Quality Prediction Tabular
• 2 ANPC: National Agency for the Protection of Researchers

0/2 solved in this round

• T Theory Test (17 problems)

0/1 solved in this round

• 1 How Toxic Are You Online? NLP
• 2 Skeletons Don't Lie: Can AI Decode Your Moves? Time series

0/2 solved in this round

• 1 HotSpot Vision
• 2 Angry Birds Vision

0/2 solved in this round

• 1 Human vs AI NLP
• 2 Byzantine Notation Vision

0/2 solved in this round

• 1 Calorie Consumption Tabular
• 2 SmartCargo – Optimising Deliveries in Romania Tabular

0/2 solved in this round

• NLP Grammar Is Everything: Grammatical Error Correction
• CV ROAI TransportationCo Vision

0/2 solved in this round

• 1 Problem 1
• 2 Points Classifier Tabular

0/2 solved in this round

• 4.3 Lost Interactions Tabular

0/1 solved in this round

• 3.1.2 Predicting the Rating of the Next Book Read Tabular
• 3.1.3 Ranking Candidate Books by Three-level Relevance Tabular

0/2 solved in this round

• 1 Classification of Space Objects Tabular

0/1 solved in this round

• 4.3 Amur Tiger Re-identification Vision

0/1 solved in this round

• 3.2.1.1 Multi-class Animal Detection in Camera-trap Photos Vision
• 3.2.2.1 Multi-class Animal Species Classification in Camera-trap Photos Vision

0/2 solved in this round

• 2.4.1 Multi-class Classification of Animals in Camera-trap Photos Vision

0/1 solved in this round

• VI Designing Chelators for Radiopharmaceuticals

0/1 solved in this round

• IV.1.1 Lipophilicity Prediction
• IV.2.1 Directed Molecule Design

0/2 solved in this round

• II.3.1 PN-expert: Parkinson's Exercise Classification Tabular

0/1 solved in this round

• A The Line Rotates Again
• B Random Generator
• C Gradient Descent on Paper
• D Laser
• E New Sample
• F A Fictional Situation

0/6 solved in this round

• A What to Watch? Tabular
• B Seismically Active Island Time series
• C A Beginner's Mistake Tabular
• D Humanity's Heritage NLP
• E Suspicious Cakes Vision

0/5 solved in this round

• A Natural Numbers
• B Matrices and Forgotten Activations
• C Mean and Median
• D MAE
• E The Line Rotates
• F NLP
• G Segments
• H Lonely Circle

0/8 solved in this round

• A Recommendation Islands Tabular
• B Clustering Tabular
• C Apartment Rental Prices Tabular
• D The Martian Archivist Tabular

0/4 solved in this round

• 1 Maths in a Chatbot
• 2 Maximum Trace over All Permutations
• 3 Minimising L1 and L2
• 4 Group By Tabular
• 5 Decision Non-Making Tree
• 6 Heat Map

0/6 solved in this round

• 1 Clusters on the Number Line
• 2 Guess the Coefficients
• 3 Pink Lemurs: Classification Metrics
• 4 Minimise the Loss
• 5 Two Positive Examples
• 6 Neural Network Training Report
• 7 Special Decision Tree
• 8 Weighted Voting of Three Models Tabular

0/8 solved in this round

• 1 Shuffled Safe Codes
• 2 Forecasting Task Types
• 3 k Nearest Neighbours on Three Points
• 4 Four Decision Trees
• 5 Spam Filter Metrics
• 6 Plots Above the Median Tabular

0/6 solved in this round

• 1 Cat or Dog Threshold
• 2 Forecasting Ball Colours
• 3 Choosing a Model by MSE
• 4 Interquartile-Range Outliers
• 5 Photo Contest: Range of Recall
• 6 Majority Vote of Three Advisers Tabular

0/6 solved in this round

• 1 Independent Groups in Federated Learning
• 2 The Flower-Shop Intern
• 3 k-NN Point with All Four Predictions
• 4 Word Meaning Vectors
• 5 From Accuracy to Precision
• 6 Outliers Relative to the Mean Tabular

0/6 solved in this round

• 1 Chatbot Context Window
• 2 Background Blur Rule
• 3 Homework or Answer Key
• 4 Falsifying a Hypothesis
• 5 From Precision to Accuracy
• 6 Probability Threshold Tabular

0/6 solved in this round

• S1 Section 1: Multiple-Choice Questions
• 1 Gradient Boosting from Scratch Tabular
• 2 The Segmentation Fracture (Debugging U-Net) Vision
• 3 The Attention Mechanism (Building the "Brain") NLP

0/4 solved in this round

• 1 Preliminary Round Assessment (300 MCQs)

0/1 solved in this round

• S1 Section 1: Multiple-Choice Questions
• 1 Linear Regression Using Gradient Descent
• 2 K-Means Clustering
• 3 Retrieval Augmented Generation NLP

0/4 solved in this round

• 1 Predicting the Energy Value of Meals and Designing a Healthier Alternative with AI Tabular
• 2 The Mischievous but Wise Eraser Vision
• 3 Diacritics: Automatic Restoration of Diacritics in Slovak Text NLP

0/3 solved in this round

• 1 Recognising Grains (Dry Bean Varieties) Tabular
• 2 Parrot NLP
• 3 About Cinderella Vision

0/3 solved in this round

• 1 Machine Learning Concepts (Multiple Choice)
• 2 Projection onto a Principal Component
• 3 Matrix of a Linear Map and Rank-One Decomposition
• 4 Derivative of tanh and a Vectorised MSE Gradient
• 5 Word Embedding Similarity and Low-Rank Approximation NLP
• 6 Ordering CNN Feature Maps Vision
• 7 Hand-Built Threshold MLP for a Triangle
• 8 ResNet-50 Parameters and a Frozen Backbone Vision
• 9 Breast Cancer Classification with k-NN Tabular

0/9 solved in this round

• 1 Linear Attention Is All You Need Time series
• 2 Recovering a Single Source Central Field from Vector Field Observations
• 3 Diffusion Models
• 4 Classifying Geometric Shapes from RGB Images Vision
• 5 Mixed Functions Parameter Regression

0/5 solved in this round

• 1 Linear Recurrences and Spectral Decomposition
• 2 Neural Network Basics
• 3 Logistic Regression from Scratch Tabular

0/3 solved in this round

• 1 Physics-Informed Neural Network for the Heat Equation
• 2 Multi-Head Attention and Its Variants (GQA and MLA)
• 3 CLIP Image–Text Matching Multimodal

0/3 solved in this round

• 1 What I Want and What I Don't Vision
• 2 Inverse Translation NLP
• 3 Moment Match NLP

0/3 solved in this round

• 1 Word Lookups NLP
• 2 Buried Fault Time series
• 3 Shuffled Multimodal

0/3 solved in this round

• 1 Dice Counting Vision
• 2 Pixel Quest Reinforcement learning
• 3 Archivist's Cards Multimodal

0/3 solved in this round

• 1 Polarity NLP
• 2 Oriented Ship Vision
• 3 Scientific Facts NLP

0/3 solved in this round

• 1 Classifier Classifier Vision
• 2 Massive Problem Tabular
• 3 Nuclei Reconstruction Vision

0/3 solved in this round

• 1 Watermark Removal Vision
• 2 Lost Interpreter NLP
• 3 Visual Relations Vision

0/3 solved in this round

• 1 Sticky Note Blindness Vision
• 2 Alchemy NLP
• 3 Extreme Condensation Vision

0/3 solved in this round

• 1 Drawn Apart Vision
• 2 Sound of Nature Audio
• 3 Morty's Time Paradox Tabular

0/3 solved in this round

• 1 Essay Gap NLP
• 2 Audio Demixing Audio
• 3 Face Matching Vision

0/3 solved in this round

• 1 The Defected Nuts Vision
• 2 Autocorrect NLP
• 3 Is that audio? Audio

0/3 solved in this round

• 1 Deceptive Points Tabular
• 2 Find Brain Tumors Vision
• 3 Latent Model Classification Tabular

0/3 solved in this round