Logic
Rularoo
Test number sequences and uncover the hidden rule from FITS or FAILS feedback.
Each date on DLE Directory highlights one daily puzzle worth trying. For Monday, July 21, 2025, we are introducing Rularoo — a logic DLE that usually takes 5-10 min.
Deduce a hidden rule by testing number sequences. Each probe returns FITS or FAILS, helping you eliminate possibilities before committing to the rule.
