SlateMind

SlateMind is a chess app for one player and an engine that runs entirely on your phone. No ads, no network, no account, and nothing to buy: every part of the app is open from the first launch. THE FULL RULES, NOTHING SIMPLIFIED Castling on both sides with every square checked, capture en passant, promotion to a queen, rook, bishop or knight, and a game that ends the way the rules say it ends: checkmate, stalemate, the fifty-move rule, threefold repetition and insufficient material. A move that would leave your own king in check is not refused - it does not exist, so you cannot play it by accident. SIX LEVELS, ALL OPEN Beginner, Casual, Club, Strong, Expert and Master. Each level searches deeper and takes longer over a move. The two easiest levels make real mistakes on purpose, so a first win is a real win. The engine thinks in short slices, so the board stays responsive while it works. REVIEW EVERY GAME, MOVE BY MOVE When a game ends, the engine goes back over every half-move and compares what you played with what it would have played. Every inaccuracy, mistake and blunder is listed with the move you missed, there is a graph of the evaluation, you get an accuracy figure for the whole game, and you can step through the game one half-move at a time. ONE PUZZLE A DAY, WITH AN ARCHIVE The same puzzle for everyone that day: mate in one or mate in two, taken from games the engine really played. Solve it on the first try for a larger reward. The last 30 days stay in the archive and can be played at any time. YOUR GAME IS SAVED Leave in the middle of a game and come back to the same half-move, with the move list and the clock exactly where you left them. STATISTICS Games played, won, drawn and lost, kept for each level separately. Win rate, win streaks, average game length, accuracy from your reviews, blunders per hundred half-moves, and how your games actually ended. MADE FOR ONE HAND Tap a piece to see where it can go - a dot for a move, a ring for a capture - then tap the square. Dragging works too. Flip the board, turn coordinates on or off, ask for confirmation before a move lands, and pick a light or dark theme. COINS ARE EARNED BY PLAYING Coins come from wins, win streaks, your first game of the day and the daily puzzle. They pay for a hint, an undo, a deeper look at one position in a review and for the extra board themes and piece sets. They cannot be bought: the app sells nothing and takes no payments. NOT A GAMBLING GAME There are no bets, no chips, no wheels and no prizes. Coins cannot be won by wagering, cannot be transferred to another player and cannot be exchanged for anything outside the app. OFFLINE AND PRIVATE The app has no network code at all. Nothing is collected, nothing is sent anywhere, no advertising identifier is read, and it asks for no permissions: no camera, no microphone, no location, no contacts, no notifications.

First release.