Please turn on javascript in your browser to play chess.
Posers and Puzzles

Posers and Puzzles

  1. 15 Jan '11 18:52
    Is it possible to create a position on a chess board with white to move where the only legal move checkmates black? it's probably quite simple but definitely an interesting idea sort of like a winning zugzwang
  2. 15 Jan '11 19:21 / 2 edits
    yes.
  3. 15 Jan '11 22:05
    Originally posted by Krb3710
    Is it possible to create a position on a chess board with white to move where the only legal move checkmates black? it's probably quite simple but definitely an interesting idea sort of like a winning zugzwang


    HTH; HAND.

    Richard
  4. 15 Jan '11 22:07
    Originally posted by Shallow Blue
    [fen]1R2b2k/6b1/2r2B1K/8/2B5/8/8/7R w - - 0 1[/fen]

    HTH; HAND.

    Richard
    I thought it would be simple enough, creates some interesting positions though
  5. 19 Jan '11 02:15
    This fits the criteria.

    By Ropke. White to play and mate in 6 moves.



    Don't be put off by the six moves.
    Teach anyone how to play chess and they will solve it right away.

    All it requires is that both sides play their only legal moves.
    The problem actually solves itself.

  6. 19 Jan '11 08:49 / 8 edits
    Originally posted by Shallow Blue
    [fen]1R2b2k/6b1/2r2B1K/8/2B5/8/8/7R w - - 0 1[/fen]

    HTH; HAND.

    Richard
    [b]


    oops, doesn't work, he can promote as something else, sorry!
  7. 19 Jan '11 10:32
    I think this one fits - a pretty simple one.
  8. 19 Jan '11 15:57
    Or maybe this one...

  9. 20 Jan '11 21:20
    but here are two legal moves, no?
  10. 21 Jan '11 09:10
    which of course doesnt change the outcome... nice positions posted...
  11. 21 Jan '11 18:59 / 1 edit
    Originally posted by mtthw
    Or maybe this one...

    [fen]k6b/Pqn5/PPP5/8/8/3n4/8/nKn6 w - - 0 1[/fen]
    There are many legal moves in that position. 27 actually.
  12. 22 Jan '11 13:44
    Originally posted by tomtom232
    There are many legal moves in that position. 27 actually.
    Do explain. AFAICT, two pawns can take the queen, and no other white piece can move. And yes, it's white's move, according to the FEN.

    Richard
  13. Subscriber sonhouse
    Fast and Curious
    08 Feb '11 03:33 / 3 edits
    Originally posted by greenpawn34
    This fits the criteria.

    By Ropke. White to play and mate in 6 moves.

    [fen]K1k5/P1Pp4/1p1P4/8/p7/P2P4/8/8 b - - 0 1[/fen]

    Don't be put off by the six moves.
    Teach anyone how to play chess and they will solve it right away.

    All it requires is that both sides play their only legal moves.
    The problem actually solves itself.

    [pgn]
    [FEN "K1k ...[text shortened]... 1p1P4/8/p7/P2P4/8/8 w - - 0 1"]
    1. d4 b5 2. d5 b4 3. axb4 a3 4. b5 a2 5. b6 a1=Q 6. b7[/pgn]
    I think he said mate on the move, so one move to mate but only one legal move.

    This fits the bill I think:



    b7 # Simple, no?
  14. 08 Feb '11 12:31
    yes.
  15. Subscriber sonhouse
    Fast and Curious
    09 Feb '11 01:56
    Originally posted by Banana King
    yes.
    So it seems you must be a yes man