Sandbox scoreEPIC
9,326EP
Top 7.2533% · sandbox population rank
72,529 higher · 4 tied · 927,467 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 EPFibonacci Flow
Every digit belongs to Fibonacci {0, 1, 2, 3, 5, 8}
+4,000 EPScores use independent sandbox rules at ×1. 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.