
Chess Lines
Chess openings with spaced repetition right in your browser
What it does
Chess Lines is a Chrome extension that drills your opening repertoire using spaced repetition. Practice move-by-move, get quizzed at the right intervals, and actually retain the lines you study. Works 100% offline — no account, no sync required. Free plan includes 6 lines. Lifetime upgrade ($10) unlocks all 86 lines across 23 openings for both White and Black.
Does the same job
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Boxwood ChessJun 2026 · boxwoodchess.com · ▲64Chess pattern training. No timers, no streaks, no ratings.



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Launched alongside, May 2026
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Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai


- NW
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
- FM
Dev tools · May 2026 · github.com