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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.

FilterVerdictallBetterSameWorseDomainallcsharppythonhr-lawhousing-lawmath428 rounds
#57109 May 26

Find the second-highest salary in an employees table.

V1BetterV2—ΔL—csharp
#57009 May 26

Calculate the running total of sales by date using a window function.

V1BetterV2—ΔL—csharp
#56909 May 26

Use a window function to rank orders within each customer.

V1BetterV2—ΔL—csharp
#56809 May 26

Find products that have never been ordered using a left join.

V1BetterV2—ΔL—csharp
#56709 May 26

Write a SQL query that returns the top 5 customers by total spend in 2025.

V1BetterV2—ΔL—csharp
#56609 May 26

What is the least common multiple of 4, 6, and 9?

V1BetterV2—ΔL—csharp
#56509 May 26

Convert 5 over 8 to a percentage.

V1BetterV2—ΔL—csharp
#56409 May 26

What is the area of a circle with radius 5? Use pi approximately 3.14159.

V1BetterV2—ΔL—csharp
#56309 May 26

Simplify the expression 3x squared times 4x cubed.

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#56209 May 26

What is the next term in the sequence 2, 6, 18, 54?

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#56109 May 26

If x plus y equals 10 and x minus y equals 4, what are x and y?

V1SameV2—ΔL—csharp
#56009 May 26

What is the greatest common divisor of 36 and 48?

V1WorseV2—ΔL—csharp
#55909 May 26

Calculate 25 squared minus 24 squared.

V1WorseV2—ΔL—csharp
#55809 May 26

Round 4.7836 to two decimal places.

V1SameV2—ΔL—csharp
#55709 May 26

What is 15 percent of 80?

V1BetterV2—ΔL—csharp
#55609 May 26

Find x: 5 times the quantity x minus 3 equals 20

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#55509 May 26

What is 2 cubed times 3 squared?

V1BetterV2—ΔL—csharp
#55409 May 26

Express 3 over 4 as a decimal.

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#55309 May 26

What is the perimeter of a triangle with sides 5, 7, and 10?

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#55209 May 26

Solve: 2x squared minus 8 equals 0

V1SameV2—ΔL—csharp
#55109 May 26

What is 7 factorial (7!)?

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#55009 May 26

If a train travels 60 miles in 1.5 hours, what is its speed in miles per hour?

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#54909 May 26

Convert 0.625 to a fraction in lowest terms.

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#54809 May 26

What is the square root of 169?

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