Blunderwall

Blunderwall is a short deduction puzzle made from a grid of words. Every word on the wall is a candidate, and only one is right. You tap a word to guess it. If it is wrong, the game tells you how many of its letters are in the correct position in the secret word, as a score, out of seven in the site's example. The site's own example: if the answer is SPEAKER, PACKERS scores 0 because no letter lines up, while BREAKER scores 5.

With only four guesses, the puzzle is about choosing picks that split the wall. A word that shares many letter positions with others tells you a lot whatever its score, and once you have two or three scores you can usually test each remaining word against them and find the only one that fits. It plays a little like Mastermind with words.

There is one wall a day, numbered from the first game on 4 October 2024, and the countdown runs to your local midnight. The game builds each wall from the date, so everyone playing on the same calendar day gets the same sixteen words and the same answer. Past walls are in the archive, and an emoji mode swaps the words for emoji. Blunderwall is part of the byThomas set of daily games, alongside Stackronym, Toppled and VowelPlay. It is free with ads. An advert screen with a Continue to game button comes up before the wall, and a one-off payment of £3.99 removes ads from all of them. The site still marks it as a beta.