MESON Chess Problem Database

Problem Display
PID: 187811 (2n2rq1/5p2/5R2/6P1/1K1p3n/8/k3P3/7Q w - - 0 1)

Greenberg, Daniel

Chess Weekly, 1909

2n2rq1/5p2/5R2/6P1/1K1p3n/8/k3P3/7Q

#2

5 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Keys
    • 1.Rf2!
      • threat
        • 2.e3#
        • 2.e4#
      • 1...Kb2
        • 2.e3#
        • 2.e4#
      • 1...Qxg5
        • 2.e3#
      • 1...Qh7
        • 2.e4#
      • 1...Qg6
        • 2.e4#
      • 1...Sf3
        • 2.exf3#
      • 1...d3
        • 2.exd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(g);XP(D)::R(E)+P(B)
      • Q(g);::R(E)+P(B)
      • S(c);OGATE::R(E)+P(B),XS(c)
      • P(b);OGATE::R(E)+P(B),XP(b)
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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).