MESON Chess Problem Database

Problem Display
PID: 174063 (5K2/n3N1p1/1Bp1B3/1rP4Q/RbqkN3/3PpP2/b7/2nR4 w - - 0 1)

Opdenoordt, Joseph J

Elk Wat Wils Wedstrijd, 1937

5K2/n3N1p1/1Bp1B3/1rP4Q/RbqkN3/3PpP2/b7/2nR4

#2

11 + 10

15202 Componist 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Sc8
      • 2.Sxc6#
    • 1...g5
      • 2.Qh8#
    • 1...g6
      • 2.Qh8#
  • Keys
    • 1.Qh2!
      • threat
        • 2.Sf5#
      • 1...Qxe6
        • 2.Qb2#
      • 1...Qxc5
        • 2.Qb2#
      • 1...Bxc5
        • 2.Qd6#
      • 1...Bd2
        • 2.Qd6#
      • 1...Qd5
        • 2.Qb2#
      • 1...g6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(i);N_GUARD::S(J),XP(h)
    • P(j);OGATEB::QAB(G)
  • Actual
    • Q(G);
    • Threat
      • S(J)
    • Vars
      • Q(e);N_GUARD,P_SPINB(d),XB(I)::QAB(G)
      • Q(e);N_GUARD,P_PINS(J),P_SPINB(d),P_SPINQ(e),XP(F)::QAB(G)
      • B(d);P_PINS(J),P_SPINB(d),P_SPINQ(e),XP(F)::QAR2(G)
      • B(d);P_SPINQ(e)::QAR2(G)
      • Q(e);N_GUARD,P_SPINB(d)::QAB(G)
      • P(j);OGATEB::QAB(G)
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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).