Guides and research
We test popular game tips by playing thousands of games with our own engines, and we read the research behind brain tests so you do not have to.
Does dual n-back increase IQ? What the studies actually foundDoes dual n-back training really raise IQ? We read the key studies and meta-analyses since 2008: what it improves, what it doesn't, and how to train well.
Does the 2048 corner strategy work? We played 10,000 games to find outGuides say the 2048 corner strategy wins almost every time. We tested it in 10,000 games: as a simple rule it never reached 1024. Here is what actually works.
Is every water sort puzzle solvable? We tested 25,200 boardsWe dealt 25,200 random water sort boards and solved each one by computer. With two empty tubes every board was solvable; with one, almost none were.
Schulte table: how to use it, and what it can really doWhat is a Schulte table, how do you train with it, and what can it really do for your focus and reading speed? An honest guide with the research behind it.
What is a good reaction time? Averages, age and how to get fasterWhat is a good reaction time? Lab studies put the average near 230 ms. See what your online score means, how age and your device change it, and how to improve.
What is a good typing speed? Average WPM, benchmarks and how to get fasterWhat is a good typing speed? A study of 168,000 people found an average of 52 WPM on a keyboard and 36 on phones. See where you stand and how to type faster.