MESON Chess Problem Database

Problem Display
PID: 248948 (B3R3/8/2N3P1/bK4NQ/5p2/2pk4/2pn2nR/2Br1b2 w - - 0 1)

Blikeng, Bjarne

Magasinet for Alle, 1943

B3R3/8/2N3P1/bK4NQ/5p2/2pk4/2pn2nR/2Br1b2

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Qxe2#
  • Tries
    • 1.Qh3+?
      • 1...Sf3
        • 2.Qf5#
      • 1...f3
        • 2.Qd7#
      • 1...Se3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qd5#
      • 1...Sxf3
        • 2.Qf5#
      • 1...Se4
        • 2.Sfe5#
      • 1...Bb6
        • 2.Sb4#
      • 1...Sb3
        • 2.Qf5#
      • 1...Se3
        • 2.Sce5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(b);N_GUARD::QAB1(E),XB(b)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB(E)
        • P(h);P_SPINP(h)::QAR(E)
      • Refutation
        • S(e);P_SPINS(e)
  • Actual
    • S(D);
    • Threat
      • QAR2(E)
    • Vars
      • S(d);N_GUARD,XS(D)::QAB(E)
      • S(d);SBLOCK::S(D)
      • B(i);N_GUARD::S(F)
      • S(d);N_GUARD::QAB(E)
      • S(e);SBLOCK::S(F)
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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).