Substring Explorer
Travel inside strings, select indices, and extract substrings to solve puzzles. Master the art of string slicing!
Palindrome Guardian
Navigate rooms of characters and find palindromic doors. The mirror spirit awaits your validation!
Center Expansion Quest
Click magic runes and watch the expansion algorithm reveal the longest palindrome. Unlock powerful spells!
Word Reversal Arena
Decode NPC messages by reversing sentences word by word. Master the art of string manipulation!
Prefix Castle & Suffix Dungeon
Explore the PREFIX castle and SUFFIX dungeon. Match patterns and defeat the LPS boss!
LPS Forge
Craft LPS shields with magical strings. Your shield strength depends on proper prefix-suffix matching!
KMP Chronicles
Hunt monsters hidden in text strings using the legendary KMP Scanner. Find all pattern occurrences!