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Speedcubing guides, practice advice, and development notes.
What makes a good cube timer, where existing timers fall short on mobile, and why we built Cubeathon — a free, local-first WCA timer that works offline with no account.
Cube notation in five minutes — what R, U, F, L, B and D mean, what the apostrophe and 2 do, and how to read your first scramble with confidence.
What Ao5, Ao12, Ao100, mean, and standard deviation actually measure, why averages matter more than single PBs, and practical ways to bring your Ao5 down.
Your solve history is years of practice — here's how to move it to a new timer in minutes, including a step-by-step csTimer import guide.