MESON Chess Problem Database

Problem Display
PID: 194970 (8/3r3p/3r2pK/N5Q1/3k1NR1/4bP2/1P3P2/8 w - - 0 1)

Hartong, Jan

Op de Hoogte, 1918

8/3r3p/3r2pK/N5Q1/3k1NR1/4bP2/1P3P2/8

#2

8 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Keys
    • 1.Qb5!
      • threat
        • 2.Sb3#
      • 1...Bxf4+
        • 2.Rxf4#
      • 1...g5+
        • 2.Se6#
      • 1...Bxf2
        • 2.Sg2#
      • 1...Rd5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(G);P_SPINS(D)
    • Threat
      • S(F)
    • Vars
      • B(a);CHECK,OGATE,P_SPINB(a),XS(D)::R(E),XB(a)
      • P(d);CHECK,N_PINS(D)::R(E)+S(D),DCHECK
      • B(a);N_PINS(D),XP(B)::R(E)+S(D)
      • R(c);N_GUARD::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).