MESON Chess Problem Database

Problem Display
PID: 196749 (1BB1K3/4N3/3P1pp1/3p2n1/3Qqk2/5P2/4R1n1/1b3N2 w - - 0 1)

Hartong, Jan

Op de Hoogte, 1919

1BB1K3/4N3/3P1pp1/3p2n1/3Qqk2/5P2/4R1n1/1b3N2

#2

9 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Rf2#
      • 2.Qf2#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qg3#
      • 1...Qa4+
        • 2.d7#
      • 1...Qxe7+
        • 2.dxe7#
      • 1...Ke5
        • 2.Sxg6#
      • 1...Qxf3
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);N_PINQ(c)
    • Threat
      • QAB1(D)
    • Vars
      • Q(c);CHECK,N_GUARD,N_PINS(F)::B(G)+P(E)
      • Q(c);CHECK,OGATE,XS(F)::B(G)+P(E),XQ(c)
      • K(d);N_PINS(F),P_SPINQ(c),S_FLIGHT::S(F),XP(h)
      • Q(c);N_PINS(F),P_SPINQ(c),XP(C)::S(F),XP(e)
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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).