TileKnight

TileKnight is a free browser logic puzzle that borrows ideas from chess. The board is a six by six grid with a handful of red tiles on it. Some tiles show a number and others show a chess piece such as a knight, bishop, rook or queen.

The site describes it as inspired by chess, sudoku and nonograms, and it comes with a short four-part tutorial that introduces number tiles first and then the chess pieces one pair at a time.

Each day there are three boards, Easy, Medium and Hard, dated and shared by everyone, with a countdown to the next set at midnight Pacific time. You tap a tile to start. The tile you are on decides your next move: number tiles and piece tiles each allow different jumps, and each tile you leave is cleared. The puzzle is solved when every tile is gone. If your only move would land on an empty square, you are stuck and need to restart.

The hard part is choosing where to begin, since most starting tiles lead to a dead end. If you are stuck, the game can reveal a starting tile. On Friday, Saturday and Sunday a secret weekend puzzle joins the three daily boards. The game keeps a separate streak for each difficulty and lets you share your result when you clear a board. Play needs no account, and the site shows no ads.

It suits players who like short route-finding puzzles and know how chess pieces move.