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lichess-org / lichobile

lichess.org mobile application
https://lichess.org/mobile
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OTB soft lock on pawn promotion. #182

Closed Kinglink closed 9 years ago

Kinglink commented 9 years ago

Hey guys I'm on the lichess beta.

A. I love the move confirmation.

B. I was teaching my fiancee chess using the OTB setup. However on our second game the moves were [Event "Casual game"] [Site "http://lichess.org"] [Date "2015.07.17"] [Variant "Standard"]

  1. e4 Nf6 2. f3 e5 3. Nc3 d5
  2. exd5 Nxd5 5. Nxd5 Qxd5
  3. a4 Bb4 7. Ra2 Nc6 8. Ne2 Bf5
  4. Nc3 Qxa2 10. Nxa2 Nd4
  5. Nxb4 O-O-O 12. Bc4 Nc6
  6. Nxc6 bxc6 14. d3 e4
  7. dxe4 Rxd1+ 16. Kxd1 Bd7
  8. Re1 Rd8 18. a5 Be6+
  9. Bd3 Rd5 20. exd5 Bxd5
  10. Bf5+ Kb8 22. Re8+ Kb7
  11. Bd7 Be6 24. Bc8+ Bxc8
  12. Re5 Ka6 26. Be3 Be6
  13. f4 Bg4+ 28. Ke1 f6
  14. Rc5 Kb7 30. a6+ Kxa6
  15. b4 Kb6 32. Rc4+ Kb5
  16. Rd4 g5 34. c4+ Kxb4
  17. c5+ Kxc5 36. fxg5 fxg5
  18. g3 a5 38. Rd3+ Kc4
  19. Rd2 a4 40. Rd4+ Kb3
  20. Rxg4 a3 42. Bc1 a2 43. Rd4

Now I was going to move a1 and promote to queen. I move a1 and the game soft locks. I can't promote and she can't move. I tried everything, the only thing I can do is take back the move.

A shame I was about to show her why getting a new Queen spelt her doom. Oh well. Hope it's not impossible to reproduce.

Kinglink commented 9 years ago

Same situation in vs CPU games

veloce commented 9 years ago

Hey @Kinglink

It was a bug indeed, you can try the new beta I just uploaded. Should be fixed now. Sorry for the inconvenience.