Public viewer
The journey of every round
Every round-trip in the corpus is public. Open one to see the prompt, the zero-point index, the baseline response, the enhanced response, and how each grader read the difference. Leave a comment if a grader's reading lands — or doesn't.
Find the second-highest salary in an employees table.
Calculate the running total of sales by date using a window function.
Use a window function to rank orders within each customer.
Find products that have never been ordered using a left join.
Write a SQL query that returns the top 5 customers by total spend in 2025.
What is the least common multiple of 4, 6, and 9?
Convert 5 over 8 to a percentage.
What is the area of a circle with radius 5? Use pi approximately 3.14159.
Simplify the expression 3x squared times 4x cubed.
What is the next term in the sequence 2, 6, 18, 54?
What is 15 percent of 80?
Find x: 5 times the quantity x minus 3 equals 20
What is 2 cubed times 3 squared?
Express 3 over 4 as a decimal.
What is the perimeter of a triangle with sides 5, 7, and 10?
What is 7 factorial (7!)?
If a train travels 60 miles in 1.5 hours, what is its speed in miles per hour?
Convert 0.625 to a fraction in lowest terms.
What is the square root of 169?
Calculate the area of a rectangle with width 8 and length 13.
What is 144 divided by 12?
What is the sum of integers from 1 to 100?
What is 12 percent of 350?
Solve for x: 3x + 7 = 22