Independent Practice for Krillion Players
Start a round right here: five questions, instant judgment with sources, a round summary, and another round whenever you want. This is our own practice game in the Krillion rare-answer style — not the official Krillion, with a different question bank and different scoring.
How a Krillion practice round works
- Pick a mode: untimed (default) or a 30-second-per-question challenge.
- Five different questions from our reviewed bank. No repeats within a round.
- Type an answer. Exact bank entries score; close misses get a suggestion, and unmatched answers are told “not in this practice set” — you can retry, skip, or move on.
- Each settled question shows the accepted answer, why it counts, evidence links, and a few other accepted examples.
- Finish for a round summary you can copy (without spoiling answers), then play again.
What “unlimited” means here — and what it doesn’t
There is no daily cap on rounds — play as many as you like, right now, without an account. What “unlimited” never means on any site: an infinite supply of new questions. Our bank currently holds 24 questions across 4 topics (335 reviewed answers); once you have seen most of them, repeats start, and your least-recently-seen questions are dealt first. The official Krillion.io also lists its own Unlimited mode — ours is a separate option, not a replacement or a copy.
How this differs from the original
| Krillion.io (original) | This practice tool | |
|---|---|---|
| Operator | An independent solo developer (per its FAQ) | Odd Answer Lab — unrelated to Krillion.io |
| Questions | Curated by Krillion.io's own team; we do not copy their sets | 24 original questions, every answer individually reviewed with cited sources |
| Scoring | Rarity-based per the official FAQ; formula not published by us | Editorial 1–3 points with written per-answer rationale (methodology) |
| Accounts | Optional personal area on the official site | None. Progress lives in this browser only |
| Fair warning | — | The bank ships to your browser, so determined players could read it. Fine for practice; not an anti-cheat system |
Bank status: every question is source-checked (each accepted answer carries a rationale and cited source, read 2026-10-03). Human playtesting is still pending, and the review trail is public in our methodology notes.