Age: 7+
Players: 1
Difficulty: 7/10
Duration: 1-30 mins
In Master Perry, one of the players hides a specific combination of tiles, and the other tries to guess it using a minimal amount of hints.
• Player 1 (The Chooser) plays with 12 white tiles: 3 x 1-, 2-, 3-, and 4-stroke tiles. They arrange the tiles randomly in a grid of three rows by four columns, and keep it hidden from the Guesser. This is the “Hidden combination map” of the game.
• Player 2 (The Guesser) plays with two stacks of 12 white tiles (3x x 1-, 2-, 3-, and 4-stroke tiles). They use one the stacks to construct a “Guess map” and guess the positions of the tiles from The Chooser’s “Hidden combination map”. The other stack (called “Marking Set”) creates an identical map, but it is only used to mark down correct guesses. All correct guesses are placed on the board map.
• The Guesser makes their first guess using the black tiles in the same 3 by 4 grid, and thus constructs a board map, which is visible for both players. It is then used as a base on top of which correct guesses of the “Hidden combination map” are placed.
Тhe Guesser arranges the black tiles in a grid of three rows by four columns and shows it to the Chooser.
The Chooser then, without revealing their “Hidden combination map", points out which of the Guesser's tiles correspond to it in terms of position and orientation. He uses the definitions “Master” and “Perry” to do so:
• “MASTER” - a tile is marked as “Master” if both its position and orientation correspond to a tile in the “Hidden combination map”.
• “PERRY” - a tile is marked as “Perry” if just its position is correct.
For example in the illustration shown below, tiles at positions 6, 8, and 9 are “Master” (M) tiles and those in positions 4 and 10 are “Perry” (P).
The black tiles that were shown as a first guess remain as a “board map”. For the rest of the game, The Guesser uses their “Guess map” to show their guesses to The Chooser, and their “Marking Set” to move the correct guesses to the black board map. The Guesser takes out each established “Master” tile out of their “Guess map” and places it on the black board map in a corresponding position and orientation.
The established “Perry” tiles are also taken out of the “Guess map”, but they are placed on the board map on their side - to mark down the correct position, but not orientation.
The goal of the game is to correctly place all tiles from the “Guess map” on the “Board map” with up to 6 guesses.
I’m terrible in this game. Breaking ciphers isn’t my thing
all my ex-classmates can confirm 
I remember seeing a lot of comments and strategy examples in the web, but to be honest I never learned any of those. In my case it’s a tactic I’ve created when playing with friends and a lot of luck haha