*super secret achievement* killer king

so a few days ago i was looking at some peoples stats and saw that they had an achievement called killer king. you have to checkmate someone with your king.

?

i think it means discovered check

What? Aw dang. Does unrated games count at least? This achievement sounds like an elusive one.

Yeah, it's for moving your king and getting a discovered checkmate.

I just got the achievement for "Killer King."  I didn't even know it existed until this forum. The game wasn't the prettiest, but I got it by playing against a computer just so I could get the achievement. Even against a weaker-rated computer, a King checkmate was surprisingly difficult to set up. I have certainly gained even more appreciation for this checkmate in "real" games; King checkmate is even harder than I thought (and I thought it was tricky to set up before!).

the last move has to be the king, I achieved it by clearing the king from in front of a queen to cause checkmate

Check out this #chess game: depezao vs japhy1 - https://www.chess.com/live/game/5171050874

Does castling with checkmate earn you the "Killer King" achievement or is there another achievement specifically for that rare type of checkmate?

I also have an achievement for checkmating by castling.

Wait, what? Is that really a thing? Castling checkmate is so rare, chess.com actually has an achievement for this?

I've done it, look in my profile achievements

Ive done it like a hole 2 monthes ago

If you don't believe me this is the link

https://www.chess.com/live/game/5108352160

IF YOU STILL DON'T BELIEVE ME

THIS IS THE PGN:

[Event "Live Chess"]
[Site "Chess.com"]
[Date "2020.07.06"]
[Round "?"]
[White "Wayne-BOT"]
[Black "MrOOF600"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "512"]
[BlackElo "875"]
[TimeControl "180+2"]
[EndTime "3:52:40 PDT"]
[Termination "MrOOF600 won by checkmate"]

1. Nc3 {[%clk 0:03:01.9]} 1... Nc6 {[%clk 0:03:01.9]} 2. f4 {[%clk 0:03:03.8]}
2... d5 {[%clk 0:03:03.7]} 3. Na4 {[%clk 0:03:05.7]} 3... d4 {[%clk 0:03:05.6]}
4. g3 {[%clk 0:03:07.6]} 4... d3 {[%clk 0:03:07.5]} 5. e3 {[%clk 0:03:09.5]}
5... dxc2 {[%clk 0:03:09.2]} 6. Bb5 {[%clk 0:03:11.4]} 6... cxd1=Q+ {[%clk
0:03:10.7]} 7. Kf2 {[%clk 0:03:13.3]} 7... a6 {[%clk 0:03:12.4]} 8. Nc5 {[%clk
0:03:15.2]} 8... axb5 {[%clk 0:03:13.7]} 9. Nf3 {[%clk 0:03:17.1]} 9... Rxa2
{[%clk 0:03:15.3]} 10. d4 {[%clk 0:03:19]} 10... Rxa1 {[%clk 0:03:17]} 11. Rf1
{[%clk 0:03:20.9]} 11... Rxc1 {[%clk 0:03:18.7]} 12. Rxd1 {[%clk 0:03:22.8]}
12... Rxd1 {[%clk 0:03:20.2]} 13. Nh4 {[%clk 0:03:24.7]} 13... Rxd4 {[%clk
0:03:22]} 14. Kf3 {[%clk 0:03:26.6]} 14... Rc4 {[%clk 0:03:23.8]} 15. Nf5 {[%clk
0:03:28.5]} 15... Rxc5 {[%clk 0:03:25.7]} 16. Nh6 {[%clk 0:03:30.4]} 16... Rc3
{[%clk 0:03:27.6]} 17. Ng4 {[%clk 0:03:32.3]} 17... Rc2 {[%clk 0:03:29.3]} 18.
Nf2 {[%clk 0:03:34.2]} 18... Rxb2 {[%clk 0:03:31.2]} 19. Kg2 {[%clk 0:03:36.1]}
19... Rc2 {[%clk 0:03:33]} 20. Kf1 {[%clk 0:03:38]} 20... Rxf2+ {[%clk
0:03:34.8]} 21. Kxf2 {[%clk 0:03:39.9]} 21... b4 {[%clk 0:03:36]} 22. h3 {[%clk
0:03:41.8]} 22... b3 {[%clk 0:03:37.9]} 23. h4 {[%clk 0:03:43.7]} 23... b2
{[%clk 0:03:39.7]} 24. Ke1 {[%clk 0:03:45.6]} 24... b1=Q+ {[%clk 0:03:41.4]} 25.
Ke2 {[%clk 0:03:47.5]} 25... Qd7 {[%clk 0:03:42.9]} 26. Kf3 {[%clk 0:03:49.4]}
26... Qd6 {[%clk 0:03:44.8]} 27. h5 {[%clk 0:03:51.3]} 27... Qd5+ {[%clk
0:03:46.7]} 28. e4 {[%clk 0:03:53.2]} 28... Qd4 {[%clk 0:03:48.5]} 29. Kg2
{[%clk 0:03:55.1]} 29... Qdd3 {[%clk 0:03:49.8]} 30. g4 {[%clk 0:03:57]} 30...
Qd2+ {[%clk 0:03:51.7]} 31. Kg3 {[%clk 0:03:58.9]} 31... Qdd1 {[%clk 0:03:53.6]}
32. f5 {[%clk 0:04:00.8]} 32... Qdc1 {[%clk 0:03:55.3]} 33. Kh4 {[%clk
0:04:02.7]} 33... Qd1 {[%clk 0:03:57.1]} 34. Kg3 {[%clk 0:04:04.6]} 34... Qa4
{[%clk 0:03:58.2]} 35. Kf4 {[%clk 0:04:06.5]} 35... Qa5 {[%clk 0:04:00.1]} 36.
Kf3 {[%clk 0:04:08.4]} 36... b5 {[%clk 0:04:02]} 37. e5 {[%clk 0:04:10.3]} 37...
Qa4 {[%clk 0:04:03.9]} 38. Kg2 {[%clk 0:04:12.2]} 38... b4 {[%clk 0:04:05.6]}
39. Kh2 {[%clk 0:04:14.1]} 39... f6 {[%clk 0:04:07.3]} 40. Kg2 {[%clk 0:04:16]}
40... fxe5 {[%clk 0:04:08.8]} 41. Kf2 {[%clk 0:04:17.9]} 41... g6 {[%clk
0:04:10.7]} 42. g5 {[%clk 0:04:19.8]} 42... gxf5 {[%clk 0:04:12.5]} 43. Kg3
{[%clk 0:04:21.7]} 43... Bg7 {[%clk 0:04:13.3]} 44. Kg2 {[%clk 0:04:23.6]} 44...
e6 {[%clk 0:04:14.6]} 45. Kf2 {[%clk 0:04:25.5]} 45... f4 {[%clk 0:04:16.5]} 46.
Kf3 {[%clk 0:04:27.4]} 46... e4+ {[%clk 0:04:18.4]} 47. Kxf4 {[%clk 0:04:29.3]}
47... e5+ {[%clk 0:04:19.8]} 48. Kg3 {[%clk 0:04:31.2]} 48... e3 {[%clk
0:04:21.7]} 49. Kh2 {[%clk 0:04:33.1]} 49... e4 {[%clk 0:04:23.4]} 50. Kg2
{[%clk 0:04:35]} 50... e2 {[%clk 0:04:24.5]} 51. Kg3 {[%clk 0:04:36.9]} 51... e3
{[%clk 0:04:25.8]} 52. h6 {[%clk 0:04:38.8]} 52... e1=Q+ {[%clk 0:04:27.4]} 53.
Kg2 {[%clk 0:04:40.7]} 53... e2 {[%clk 0:04:28.9]} 54. hxg7 {[%clk 0:04:42.6]}
54... Nf6 {[%clk 0:04:29.6]} 55. gxf6 {[%clk 0:04:44.5]} 55... Kd7 {[%clk
0:04:30.5]} 56. Kh3 {[%clk 0:04:46.4]} 56... Rg8 {[%clk 0:04:31.7]} 57. Kg2
{[%clk 0:04:48.3]} 57... Rxg7+ {[%clk 0:04:33.1]} 58. Kf3 {[%clk 0:04:50.2]}
58... Rf7 {[%clk 0:04:34.8]} 59. Kf4 {[%clk 0:04:52.1]} 59... Rxf6+ {[%clk
0:04:36.4]} 60. Ke3 {[%clk 0:04:54]} 60... Re6+ {[%clk 0:04:37.9]} 61. Kf4
{[%clk 0:04:55.9]} 61... Rd6 {[%clk 0:04:39.4]} 62. Kg5 {[%clk 0:04:57.8]} 62...
Rd5+ {[%clk 0:04:40.9]} 63. Kf4 {[%clk 0:04:59.7]} 63... Rd4+ {[%clk 0:04:39.9]}
64. Ke3 {[%clk 0:05:01.6]} 64... Rd3+ {[%clk 0:04:40.7]} 65. Kf4 {[%clk
0:05:03.5]} 65... Rd4+ {[%clk 0:04:41.3]} 66. Ke3 {[%clk 0:05:05.4]} 66... Ne5
{[%clk 0:04:41.7]} 67. Kxd4 {[%clk 0:05:07.3]} 67... Nf3+ {[%clk 0:04:42.5]} 68.
Ke3 {[%clk 0:05:09.2]} 68... Qa3+ {[%clk 0:04:43.6]} 69. Kf4 {[%clk 0:05:11.1]}
69... c5 {[%clk 0:04:44.1]} 70. Kg4 {[%clk 0:05:13]} 70... c4 {[%clk 0:04:44.9]}
71. Kh3 {[%clk 0:05:14.9]} 71... c3 {[%clk 0:04:46.5]} 72. Kg2 {[%clk
0:05:16.8]} 72... c2 {[%clk 0:04:43.5]} 73. Kh3 {[%clk 0:05:18.7]} 73... c1=Q
{[%clk 0:04:44.8]} 74. Kg2 {[%clk 0:05:20.6]} 74... b3 {[%clk 0:04:45.6]} 75.
Kh3 {[%clk 0:05:22.5]} 75... b2 {[%clk 0:04:47.1]} 76. Kg2 {[%clk 0:05:24.4]}
76... Qaa2 {[%clk 0:04:48.7]} 77. Kh3 {[%clk 0:05:26.3]} 77... Qba1 {[%clk
0:04:50.4]} 78. Kg4 {[%clk 0:05:28.2]} 78... b1=Q {[%clk 0:04:50.9]} 79. Kxf3
{[%clk 0:05:30.1]} 79... h5 {[%clk 0:04:51.2]} 80. Kg2 {[%clk 0:05:32]} 80... h4
{[%clk 0:04:52.5]} 81. Kh2 {[%clk 0:05:33.9]} 81... h3 {[%clk 0:04:53.7]} 82.
Kxh3 {[%clk 0:05:35.8]} 82... Qed1 {[%clk 0:04:52.6]} 83. Kg2 {[%clk 0:05:37.7]}
83... e1=Q+ {[%clk 0:04:52.7]} 84. Kh3 {[%clk 0:05:39.6]} 84... Kc6# {[%clk
0:04:52.5]} 0-1

Nah, it's cool - I believe you. I just played a weak computer and got the castling achievement now. (Took me two tries though lol - the first one I tried just doing it and dropped the needed Rook xD so in the second attempt I just traded into an endgame).

Rapid games isn't really a "rules of chess" problem though - that is just learning chess.com formatting. Check out this forum just to make sure you know all of the rules of chess. Not knowing a rule like en passant as a beginner is so common, it is even meme caliber lol 

https://www.chess.com/learn-how-to-play-chess

Also, no worries: remember that "Every chess master was once a beginner." - Irving Chernev

I play chess as a hobby myself; no interest whatsoever in becoming a chess grandmaster - it isn't a dream of mine or anything. If I get that good at chess, then maybe I'll take that step, but I'm just trying to enjoy the game and learn

p.s. you don't need to seek grandmaster to know rules like castling or en passant though

Creating alternate chess.com accounts is against chess.com policies (with few exceptions for titled players or certified chess coaches etc. I think), so please don't even joke about such just to get a silly achievement - new chess.com members might take you seriously.

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