The Brain Puzzles Blog
Two angles on the same wooden game: concrete strategies for solving sliding tile and block puzzles faster, and an honest look under the hood at how the game is built.
Free Puzzle Games Online: The Ones Worth Bookmarking
A guided tour of all eleven LK Forge puzzle games — Sudoku, 2048, Minesweeper, Connect 4, the 15-puzzle and block puzzles, mazes, memory and word search — grouped by the kind of thinking each one trains.
Read StrategyHow to Solve Sliding & Block Puzzles
Solve the top rows then columns, handle the tricky last-two-tiles cycle, clear the exit lane in Block Puzzle, and plan backwards from the red block to find your next move.
Read EngineeringHow We Built Brain Puzzles
DOM and CSS wood material, solvable shuffles via random legal moves, pointer-drag collision using an occupancy grid, and a BFS solver that powers hints and computes par for every level.
ReadThe strategy and engineering posts cover the same game from opposite sides. The strategy post is written for the player: it breaks the 15-puzzle down into a layer-by-layer method — solve the top rows, then the columns, then untangle the last two tiles with their signature three-cycle — and does the same for Block Puzzle, where the trick is to plan backwards from the red block's exit lane instead of pushing pieces at random. The engineering post is written for the curious builder: it walks through how the wood-grain board is drawn with plain DOM and CSS, how every new puzzle is shuffled with random legal moves so it is always solvable, how dragging a piece is resolved against an occupancy grid instead of pixel collision, and how the same breadth-first search that powers the in-game hints also computes the par score for every level.