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SOF International Mathematics Olympiad
SOF math olympiad for school students. 35–50 questions across Logical Reasoning, Mathematical Reasoning, Everyday Mathematics, and an Achievers Section.
Updated 17 Aug 2026 ·Vacancy counts change every cycle — always confirm the exact number in the latest official notification before applying.
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Free SOF IMO preparation on Shishya
Take expert-curated mocks, practise previous year papers, and Ask Shishya when you're stuck — verified by students who cleared the same path. All free, no credit card. Sign in with Google to begin.
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Matrix and Pattern CompletionComplete the following 3×3 matrix by finding the pattern. What number should replace the question mark? Row 1: 7, 10, 13 Row 2: 11, 14, 17 Row 3: 15, 18, ?
Tap an option to check your answer.
Start with a diagnostic
10 questions across the syllabus to see where you stand.
2025
20 questions
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20 questions
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20 questions
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20 questions
Take paper →2021
20 questions
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SOF IMO — Full Mock 1
FULL50 questions · 60 min
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Start mock →SOF IMO — 2021 (Previous Year)
FULL20 questions · 60 min
Start mock →Full-length subject tests below — 25 questions each, real exam format, instant scoring. Want to drill a single topic? Every topic has its own 10-question test in the syllabus.
Logical Reasoning
78 QsMathematical Reasoning
100 QsEveryday Mathematics
25 QsAchievers Section
17 QsTell Shishya exactly what to test you on — topics, size, difficulty — and get a fresh mock in seconds. Leave the box blank and we'll target your weakest topics.
Take a mock to see where you stand on the leaderboard.
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Top score
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What can I get from SOF IMO?
Mock-score → expected rank → likely outcome. Use the mocks below to find your current band, then plan how many marks you need to climb.
International Top Rankers
97–100% · Post-based exam (no numeric rank)
SOF has officially announced three exam dates for IMO Level 1: October 23, November 26, and December 10, 2026. Schools can select one date to conduct the exam, and registration must be completed 30 days before the chosen date.
The Science Olympiad Foundation has dispatched registration forms for all Olympiads including IMO for the 2026-27 academic year to participating schools across India and internationally.
SOF announced that Level 2 exams for IMO will be held tentatively on the 2nd or 3rd Sunday of February 2027 for Classes 3-12 students who qualify from Level 1. Exact dates to be confirmed by December 2026.
Tap any topic for its study notes + a 10-question topic test
Verbal and Non-Verbal Reasoning
Mixed verbal and figure-based reasoning patterns.
Number and Alphabet Series
Find the next or missing term in a number or alphabet series.
Analogy and Classification
Identify the matching pair or odd one out among words, numbers and figures.
Coding-Decoding
Encrypt or decode words and numbers using a given rule.
Mathematical Operations
Symbol substitution, BODMAS and operator-based logic problems.
Top 1% — Elite Range
92–97% · Post-based exam (no numeric rank)
National Top Performers
85–92% · Post-based exam (no numeric rank)
Zonal Excellence
75–85% · Post-based exam (no numeric rank)
State Level Recognition
60–75% · Post-based exam (no numeric rank)
Certificate of Merit Range
40–60% · Post-based exam (no numeric rank)
Participation Level
0–40% · Post-based exam (no numeric rank)
AI-curated from historic cut-off patterns. Always verify with the latest official notification before making decisions.
The Science Olympiad Foundation released the Level 1 results for the 2025-26 academic session in mid-January 2026, allowing qualified students to prepare for Level 2 conducted in February 2026.
Level 1 Result 2025-26 declared
passedThu, 15 Jan, 2026
2025-26 cycle Level 1 results released
🏅Level 2 Exam 2025-26 (Rest of World)
passedSun, 8 Feb, 2026
For Maharashtra, exam was held on February 15, 2026
Level 2 Result 2025-26 declared
passedWed, 18 Mar, 2026
2025-26 cycle Level 2 results released
School registration deadline (for Date 1 exam - 30 days before)
28 days awayWed, 23 Sept, 2026
Schools must register at least 30 days before their chosen exam date
🏅Level 1 Exam - Set A (Date 1)
58 days awayFri, 23 Oct, 2026
Schools choose one of three dates; all students in a school appear on the same chosen date
School registration deadline (for Date 2 exam - 30 days before)
62 days awayTue, 27 Oct, 2026
Schools must register at least 30 days before their chosen exam date
Level 1 Admit Card (expected)
65 days awayFri, 30 Oct, 2026
Admit cards typically released 2-3 weeks before exam date; available through schools
School registration deadline (for Date 3 exam - 30 days before)
76 days awayTue, 10 Nov, 2026
Schools must register at least 30 days before their chosen exam date
🏅Level 1 Exam - Set B (Date 2)
92 days awayThu, 26 Nov, 2026
Schools choose one of three dates; separate question papers for each date
🏅Level 1 Exam - Set C (Date 3)
106 days awayThu, 10 Dec, 2026
Schools choose one of three dates; separate question papers for each date
Number Systems
Real numbers, rational/irrational numbers, decimal expansions and laws of exponents for real numbers.
Polynomials
Zeroes, remainder theorem, factor theorem and algebraic identities.
Coordinate Geometry
Cartesian plane, plotting points, distance formula and section formula.
Linear Equations in Two Variables
Solution graphs, substitution, elimination and cross-multiplication methods.
Introduction to Euclid's Geometry
Euclid's axioms, postulates and basic geometrical proofs.
Lines and Angles
Pairs of angles, parallel lines, transversals and angle sum properties.
Triangles
Congruence criteria, properties of isosceles triangles and inequalities in a triangle.
Quadrilaterals
Properties of parallelograms, rhombus, rectangle, square and mid-point theorem.
Areas of Parallelograms and Triangles
Figures on the same base and between same parallels — equal-area theorems.
Circles
Chords, arcs, angles subtended, cyclic quadrilaterals and tangent properties.
Constructions
Compass and straight-edge constructions of bisectors, triangles and tangents.
Heron's Formula
Area of a triangle from its three sides and applications to quadrilaterals.
Surface Areas and Volumes
Cuboid, cube, cylinder, cone, sphere and hemisphere — surface area and volume.
Statistics
Mean, median, mode of grouped/ungrouped data and graphical representation.
Probability
Experimental and theoretical probability of simple events.
Real Numbers (Class 10)
Euclid's division lemma, fundamental theorem of arithmetic and irrational numbers.
Quadratic Equations (Class 10)
Solution by factorization, completing the square, quadratic formula and discriminant.
Arithmetic Progressions (Class 10)
nth term, sum of n terms and word problems on APs.
Introduction to Trigonometry (Class 10)
Trigonometric ratios, complementary angles, identities and heights and distances.
Word Problems Application
Real-life word problems based on the math syllabus.
Percentage, Profit and Loss
Applied percentage, profit/loss, discount and successive percentages.
Time, Speed and Distance
Trains, boats and streams and average-speed problems.
Time and Work
Work efficiency, pipes-and-cisterns and joint-work problems.
Simple and Compound Interest
SI/CI computations and instalment-based problems.
Higher Order Mathematical Thinking
HOTS questions extending IMO math topics into multi-step proofs.
Problem Solving
Mixed-topic numerical problems that combine reasoning and math.
Applied Geometry and Mensuration
Multi-shape area/volume problems from real-life contexts.
Data Handling and Statistics
Interpret tables, graphs and probability scenarios.