MESON Chess Problem Database

Problem Display
PID: 109858 (7Q/1Kn2Prn/1NRN3P/R2qk3/2p3Pb/p3PP2/1r4p1/B4b2 w - - 0 1)

Larsen, Karl Adolf Koefoed

2nd Prize, Brisbane Courier, 1923-1924

7Q/1Kn2Prn/1NRN3P/R2qk3/2p3Pb/p3PP2/1r4p1/B4b2

#2

12 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Keys
    • 1.f8S!
      • threat
        • 2.Sf7#
      • 1...Sb5+
        • 2.Sbd7#
      • 1...Se6+
        • 2.Sd7#
      • 1...Kf6
        • 2.Qxg7#
      • 1...Bf6
        • 2.f4#
      • 1...Sg5
        • 2.Qxg7#
      • 1...Sf6
        • 2.f4#

There are these versions: 21992

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(K);
    • Threat
      • S(H)
    • Vars
      • S(i);CHECK,N_PINS(F),N_SPINQ(g)::S(F)
      • S(i);CHECK,SBLOCK::S(K)
      • K(h);N_SPINQ(g),S_FLIGHT::QAB1(L),XR(j)
      • B(f);SBLOCK::P(C)
      • S(k);N_GUARD,S_CUTB(f)::QAB(L),XR(j)
      • S(k);SBLOCK::P(C)
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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).