Boardle

Boardle takes a chess tactic and turns it into a guessing game. Rather than playing one move and getting a reply, you write out the whole sequence: your move, the reply, your next move and so on, filling a row of tiles in standard algebraic notation.

When the row is full you press submit and the tiles change colour. A green move is in the solution and in the right place, a yellow move is in the solution but in a different spot, and a grey move is not part of it. You then try again with what you learned, over several attempts.

A move only counts when its notation is exact, so a capture that gives mate must be written with the mate sign. Besides the standard puzzle, where you get five tries at a five-move line, there are Boardle Mini (three tries of three moves), Boardle Mega (seven of seven) and Boardle Maxi (nine of nine). The positions are taken from lichess.

It suits chess players who already read notation and want a daily tactic with a twist, and Wordle players who know the moves and want something other than letters.

Every puzzle is numbered, and an archive page lists each past board for every size, so you can catch up on days you missed. A stats box keeps your games, win rate and streak for each size in the browser, and a Share button copies your result. There is no account and no ad on the page.