Sandbox scoreRARE
6,952EP
Top 13.6157% ยท sandbox population rank
136,105 higher ยท 52 tied ยท 863,843 lower
The patterns
Matched badges / 3
Bookends
First 2 digits mirror the last 2 digits, excluding full palindromes (e.g. 421324)
+1,800 EPTwo Pair
Two distinct pairs of identical digits
+600 EPNice.
Contains 69, unless Ultimate Nice matches
+1,690 EPScores use independent sandbox rules at ร1. Top / Bottom percentages include tied scores across all 1,000,000 inputs; they are not official or lock-conditioned odds.
The possibilities
Best single-digit edits
All 54 changes checked. Follow a number to compare.
Keep exploring
Full archiveMathematical landmarks, familiar patterns, and surprising combinations.