MESON Chess Problem Database

Problem Display
PID: 151465 (8/4P1R1/1b1k4/3ppQ2/2pp4/8/8/7K w - - 0 1)

von Holzhausen, Walther Freiherr

Vynalezy a pokroky, 1907

8/4P1R1/1b1k4/3ppQ2/2pp4/8/8/7K

#2

4 + 6

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Tries
    • 1.Qg6+?
      • 1...Kc7
        • 2.e8Q#
        • 2.e8R#
      • 1...Kd7
        • 2.e8Q#
        • 2.e8R#
      • 1...Kc5!
    • 1.e8Q?
      • threat
        • 2.Qff8#
      • 1...Kc5
        • 2.Qff8#
      • 1...Bd8!
  • Keys
    • 1.Qf8!
      • threat
        • 2.e8Q#
      • 1...Kc5
        • 2.e8Q#
        • 2.e8B#
      • 1...Kc6
        • 2.e8Q#
        • 2.e8B#
      • 1...Ke6
        • 2.e8Q#
        • 2.e8R#
      • 1...Kc7
        • 2.e8Q#
      • 1...Kd7
        • 2.e8Q#
      • 1...Bd8
        • 2.exd8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(f);S_FLIGHT::P=Q
        • K(f);P-FLIGHT::P=Q
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • P(C);
      • Threat
        • QAB(B)
      • Vars
        • K(f);S_FLIGHT::QAB(B)
      • Refutation
        • B(e);
  • Actual
    • Q(B);
    • Threat
      • P=Q
    • Vars
      • K(f);S_FLIGHT::P=Q
      • K(f);P-FLIGHT::P=Q
      • B(e);OGATE::PXB(e)=S
HTML5 logo

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).