MESON Chess Problem Database

Problem Display
PID: 185980 (r2b4/p7/K7/1B3N1k/8/6R1/4qNp1/3Qnb2 w - - 0 1)

Stanley, Cyril (Kipping, Cyril Stanley)

Chess, 1958

r2b4/p7/K7/1B3N1k/8/6R1/4qNp1/3Qnb2

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4
      • 2.Qxg4#
    • 1...Sd3
      • 2.Be8#
  • Tries
    • 1.Qxe2+?
      • 1...Sf3
        • 2.Be8#
        • 2.Qxf3#
        • 2.Qe8#
      • 1...Bxe2!
  • Keys
    • 1.Sh3!
      • threat
        • 2.Sf4#
      • 1...Qg4
        • 2.Qxg4#
      • 1...Bg5
        • 2.Rxg5#
      • 1...Bc7
        • 2.Rg5#
      • 1...Sd3
        • 2.Be8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(c);OGATE::QAB1(A),XQ(c)
    • S(a);N_PINB(D)::B(D)
  • Tries
    • Try
      • Q(A);CHECK,N_SPINB(D),XQ(c)
      • Refutation
        • B(b);P_PINB(D),XQ(A)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • Q(c);OGATE::QAB1(A),XQ(c)
      • B(h);N_GUARD::R1(C),XB(h)
      • B(h);N_GUARD::R1(C)
      • S(a);N_PINB(D)::B(D)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).