匿 is a Japanese kanji written with 10 strokes, listed here under the keyword “hide”. It is built from 匚 (box) and 若 (young). In Remembering the Kanji by James W. Heisig it is frame 1827.
On KumiJi Glyph Explorer, open the parts search and type “box” + “young”. 匿 is among the results, together with every other character containing the same shapes.
Open 匿 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.