電子郵件
support@brasspawn.com
什麼都可以：程式錯誤、有問題的題目、購買方面的疑問，或是不同意某個評判。請用英文或保加利亞文書寫。
支援
找個人問
這裡沒有工單系統，沒有聊天機器人，也沒有塞了四百篇文章的說明中心。有的只是一個電子郵件地址和一份故障清單，兩者都直接通到寫這個應用程式的人手上。
故障清單
GitHub Issues
凡是你寧可攤在檯面上處理的事——以及凡是別人日後需要找得到的事，而大多數錯誤回報都屬於這一類。
當一道題出錯時
寄來四樣東西，核對只要一分鐘。
- 題目畫面上顯示的 FEN——長按即可複製。
- 你走的那一步，以及應用程式說是正解的那一步。
- 當時在哪一個模式。
- 應用程式版本，可在資訊畫面上看到。
題目偶爾會和更深的搜尋牴觸，而這類牴觸集中在那些漫長、平靜、評分偏高的局面上——它們的要點比核驗所及之處更深。這是核驗的邊界，不是題目的錯誤——不過值得知道究竟是哪幾道，而唯一的辦法就是你說出來。
問題
問得夠多，值得寫下來。
- Does it need an internet connection?
- No. The engine, the puzzles and your progress are all on the device. The single exception is online play, which needs Game Center to reach the other person.
- Is there an account?
- There is none to create. Your ratings and history live in the app’s own container on your device, and deleting the app deletes them.
- What is free?
- Playing is free and stays free — against the engine, against a person over Game Center, and the nine hundred games in Watch — all unlimited. On top of that a free account gets five a day of each kind of training: five tactics puzzles, five Rush runs, five positional exercises, five endgame drills and five games to judge. The allowance resets at nine in the morning, local time.
- Why is there no advertising?
- Partly taste and partly licence. The app links two engines — Stockfish under the GPLv3 and Reckless under the AGPLv3 — and compiling a proprietary advertising SDK into the same binary would make the combined work undistributable under either. Selling the app is fine; copyleft has never forbidden charging. Bolting a closed SDK onto it is not.
- Are my puzzle ratings the same as a FIDE rating?
- No, and they run several hundred points higher. They measure progress against yourself, not strength against a field.
- Where do the puzzles come from?
- Most are from the Lichess puzzle database, released into the public domain under CC0, carrying ratings calibrated against millions of real solving attempts. The rest were mined locally by having Stockfish play itself and keeping only positions where one move is far better than every alternative.
- Can I see the source code?
- Yes. The app carries the GNU Affero General Public License version 3 — the terms Reckless brings with it, which the GPLv3 of Stockfish permits combining with — and the complete corresponding source is published on GitHub.
- Which engine am I playing?
- Whichever you chose in Settings. Stockfish and Reckless are both compiled into the app, and one of them plays, grades and labels everything. They are not equivalent: Stockfish can be asked to play anywhere from about 1400 to full strength, while Reckless has no strength limiter and plays at full strength or not at all.