📜 Challenge History

Review your previous bug challenges and track your improvement.

Async FirstOrDefault Bug

Medium2026-07-11

Correct

38 sec

100 XP

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Missing AsNoTracking()

Easy2026-07-10

Correct

24 sec

90 XP

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N+1 Query Problem

Hard2026-07-09

Wrong

1m 18s

20 XP

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Scoped inside Singleton

Senior2026-07-08

Correct

56 sec

120 XP

Review Challenge →