OpenChess vs Chessful

Learn chess openings with OpenChess: An Opening Explorer. Play against the computer, or play as both sides, and be shown the lines that are within any opening that you are interested in learning. Want to learn the Sicilian Defense or the Queen’s Gambit? Choose that category and play against that a computer that only follows lines within that opening category. Wany to focus on learning all of the openings that start with a specific move, such as pawn to “e4”? This category can also be selected, and you can play against a computer that only plays lines that start with “e4”. The chess engine in this app is not Stockfish, and it does not look very far ahead. It is meant to provide a decent base evaluation and allow the majority of the reason behind the evaluation of the current position to be shown to the user. The following information can be shown to the user: • Positional advantages for each piece type (pawn, knight, bishop, rook, queen and king) • Piece value advantages for each color • Mobility scores for each piece where mobility plays a big role (bishop, rook, queen, king) • Pawn advantages and disadvantages (passed pawns, isolated pawns, backwards pawns, doubled pawns) • Total value of pieces attacked by each color as well as total value of pieces defended by each color A lot of chess games are won and lost within the opening moves, this app was designed to help players learn solid openings that either help them gain a winning advantage out of the opening, or at the very least help them not lose due to the opening moves played. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

You lost the game, and you can't tell which move did it. Chessful can. Stockfish checks every move on your device, and each mistake comes with an explanation in plain language. Then those mistakes become your training. Chessful builds practice from the errors in your own games, so your time goes to the moves that cost you. Know what went wrong Every mistake is sorted into one of 10 types, such as Missed Back-Rank Mate, and explained. You see what kind of error it was and what to practice next. Bring your game history Import up to 2,000 games from one PGN file. If the file holds more, Chessful brings in your newest 2,000. Analyze All then works through every game you haven't analyzed yet, one after another, so a whole archive gets reviewed without opening each game. More to practice 15,000 puzzles in 53 themes work offline. 96 endgames let you play out the technique against Stockfish until it sticks. Learn at your own pace Study with 156 interactive lessons, one topic at a time. Play someone your level Choose from 40 opponents rated 400 to 2400 Elo, and move up when you're ready. Earn 59 achievements in 8 groups along the way. Private and calm Your games stay on your device. You don't need an account, and Chessful has no ads. It doesn't collect analytics or track you, and it won't send you notifications. Made for iPhone, iPad, and Mac On the Mac, Chessful needs Apple silicon. It speaks 32 languages and works with VoiceOver and Voice Control. Free and Premium Chessful is free to download. The free plan includes: • The first 10 opponents • The first endgame in each category • 2 game analyses, 3 puzzles, and 2 coach hints every day On the free plan, Analyze All stops after your 2 daily analyses. Premium lifts the daily limits and opens all 40 opponents and all 96 endgames. Choose monthly or yearly, each starting with a 1-week free trial, or buy lifetime access once. Family Sharing is included with all three. Play one game and see what Chessful finds. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/