Cast an I Ching hexagram eight different ways — coins, yarrow stalks, plum blossom, text, image — with the working shown, not just the result.

Six short browser games for timing, memory, and perception. No download, no signup — scores stay in your browser.

Free Texas Hold'em practice with virtual chips — make a decision, write down the reasoning, then review it. Built for deliberate practice, not just play.

A bilingual reader for Chinese classical texts — original, translation, and annotation side by side, for reading slowly and following the ideas.

One timeline for US LLC filing deadlines, built for owners outside the US — sourced from official filings, no filing service required.