坑 is a Japanese kanji written with 7 strokes, listed here under the keyword “pit”. It is built from 亢 (whirlwind) and 土 (soil). In Remembering the Kanji by James W. Heisig it is frame 328.
On KumiJi Glyph Explorer, open the parts search and type “whirlwind” + “soil”. 坑 is among the results, together with every other character containing the same shapes.
Open 坑 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.