Sum & Cedar ยท Kakuro Source: https://github.com/z-biz-game/z-biz-game-kakuro-cos Commit: 55d9a8eaafdf98194182541e0ae1303c481b9378 MIT License. Copyright2026 z-biz-game; modified UI copyright2026 SkillSafe contributor. Original engine.js, combos.js and levels.js copied from upstream js/engine/kakuro.js, js/engine/combos.js and js/data/levels.js. No upstream art reused. New app.js, style.css and HTML interface; preferred readable source bundled, no build required. Generated cedar-desk.webp is used under the playable board. Tags: github-source, game.