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Real Puzzle

  • 18 months ago · Quote · #1

    rcalindas

    Enjoy! White to move, mate in 4

  • 18 months ago · Quote · #2

    CmanBst

    Great puzzle!!! Thx for the post

  • 18 months ago · Quote · #3

    fionas88888

    Castling with check.

    Puzzle is awesome, let me show you something else.

     

    Notable castlings

    Averbakh vs. Purdy, 1960
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    8 {{{square}}} black rook {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black bishop {{{square}}} black king {{{square}}} black rook 8
    7 {{{square}}} black pawn {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black pawn {{{square}}} black pawn 7
    6 {{{square}}} black king {{{square}}} black king {{{square}}} black pawn {{{square}}} black king {{{square}}} black bishop {{{square}}} black pawn {{{square}}} black king {{{square}}} black king 6
    5 {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black pawn {{{square}}} black king {{{square}}} black king {{{square}}} black king 5
    4 {{{square}}} black king {{{square}}} black king {{{square}}} white pawn {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king 4
    3 {{{square}}} black king {{{square}}} black king {{{square}}} white pawn {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king {{{square}}} black king 3
    2 {{{square}}} white pawn {{{square}}} black king {{{square}}} black king {{{square}}} white knight {{{square}}} white pawn {{{square}}} white pawn {{{square}}} black king {{{square}}} white pawn 2
    1 {{{square}}} black king {{{square}}} white rook {{{square}}} white bishop {{{square}}} black king {{{square}}} white king {{{square}}} black king {{{square}}} black king {{{square}}} white rook 1
    Solid white.svg a b c d e f g h Solid white.svg
    Black to move, castled queenside, with the rook going over the attacked square b8.
    • In this game  between Yuri Averbakh and Cecil Purdy, Black castled queenside. Averbakh pointed out that the rook passed over a square controlled by White and thought it was illegal. Purdy proved that the castling was legal since this applies only to the king, to which Averbakh replied "Only the king? Not the rook?", .
    • Viktor Korchnoi, in his 1974 Candidates final match with Anatoly Karpov, famously asked the arbiter if castling was legal when the castling rook was under attack.
    •  The answer was in the affirmative, and Korchnoi ended up winning the game.
    • Three castlings occurred in the game between Wolfgang Heidenfeld and Nick Kerins, in Dublin in 1973. Of course, the third one (the second one by White) was illegal. See this link, "Greatest number of castlings". The game is as follows:

    1. e4 e6 2. d4 d5 3. Be3 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Nf3 Qb6 8. Qd2 c4 9. Be2 Na5 10. O-O f5 11. Ng5 Be7 12. g4 Bxg5 13. fxg5 Nf8 14. gxf5 exf5 15. Bf3 Be6 16. Qg2 O-O-O 17. Na3 Ng6 18. Qd2 f4 19. Bf2 Bh3 20. Rfb1 Bf5 21. Nc2 h6 22. gxh6 Rxh6 23. Nb4 Qe6 24. Qe2 Ne7 25. b3 Qg6+ 26. Kf1 Bxb1 27. bxc4 dxc4 28. Qb2 Bd3+ 29. Ke1 Be4 30. Qe2 Bxf3 31. Qxf3 Rxh2 32. d5 Qf5 33. O-O-O Rh3 34. Qe2 Rxc3+ 35. Kb2 Rh3 36. d6 Nec6 37. Nxc6 Nxc6 38. e6 Qe5+ 39. Qxe5 Nxe5 40. d7+ Nxd7 0-1

    • Tim Krabbé composed a joke chess problem containing vertical castling (king on e1, promoted rook on e8). The loophole in the definition of castling upon which this problem was based was removed by the new requirement that the castling rook must occupy the same rank as the king.

    Lasker game

    Ed. Lasker vs. Thomas
    Solid white.svg a b c d e f g h Solid white.svg
    8 a8 black rook b8 black knight c8 black king d8 black king e8 black king f8 black rook g8 black king h8 black king 8
    7 a7 black pawn b7 black bishop c7 black pawn d7 black pawn e7 black queen f7 black king g7 black pawn h7 black king 7
    6 a6 black king b6 black pawn c6 black king d6 black king e6 black pawn f6 white knight g6 black king h6 black king 6
    5 a5 black king b5 black king c5 black king d5 black king e5 black king f5 black king g5 black king h5 black king 5
    4 a4 black king b4 black king c4 black king d4 white pawn e4 black king f4 black king g4 white knight h4 white pawn 4
    3 a3 black king b3 black king c3 black king d3 black king e3 black king f3 black king g3 white pawn h3 black king 3
    2 a2 white pawn b2 white pawn c2 white pawn d2 black king e2 white bishop f2 white pawn g2 black king h2 white rook 2
    1 a1 white rook b1 black king c1 black king d1 black king e1 white king f1 black king g1 black king h1 black king 1
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    Position after 17... Kg1

    In this game between Edward Lasker and Sir George Thomas (London 1912),Black had just played 17... Kg1. White could have checkmated by 18. 0-0-0# but instead played 18. Kd2#.  

    Prins versus Day

    Prins vs. Day, 1968
    Solid white.svg a b c d e f g h Solid white.svg
    8 a8 black rook b8 black king c8 black king d8 black king e8 black king f8 black king g8 black king h8 white king 8
    7 a7 black king b7 black bishop c7 black king d7 black pawn e7 black king f7 black pawn g7 black king h7 black king 7
    6 a6 black pawn b6 black king c6 black king d6 black king e6 black pawn f6 black king g6 black queen h6 black king 6
    5 a5 black king b5 black king c5 black king d5 white pawn e5 black king f5 black king g5 black pawn h5 black king 5
    4 a4 black king b4 black king c4 white pawn d4 black king e4 black king f4 black king g4 black king h4 black king 4
    3 a3 white pawn b3 black king c3 black king d3 black king e3 white pawn f3 black king g3 black king h3 black king 3
    2 a2 black king b2 white pawn c2 black king d2 black king e2 white bishop f2 black king g2 black king h2 black king 2
    1 a1 white rook b1 black king c1 white rook d1 black king e1 white queen f1 black king g1 black king h1 black king 1
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    Position before 31...O-O-O#

    This game between Lodewijk Prins and Lawrence Day ended in a checkmate by castling:

    31... O-O-O#


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