MESON Chess Problem Database

Problem Display
PID: 244485 (6Q1/8/8/6pk/8/6P1/4K2P/7R w - - 0 1)

Fomichev, Evgeny Vasilevich

Problemist Pribuzhya, 1990

6Q1/8/8/6pk/8/6P1/4K2P/7R

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.h3?
      • threat
        • 2.Qh7#
      • 1...g4
        • 2.hxg4#
      • 1...Kh6!
  • Keys
    • 1.h4!
      • threat
        • 2.Qxg5#
      • 1...Kg4
        • 2.Qxg5#
      • 1...Kh6
        • 2.hxg5#
      • 1...gxh4
        • 2.Rxh4#
      • 1...g4
        • 2.Qh7#
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(C);
      • Threat
        • QAR2(E)
      • Vars
        • P(a);OGATE::R(A)+P(C)DCHECK,XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAR1(E),XP(a)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAR1(E),XP(a)
      • K(b);P-FLIGHT::R(A)+P(C)DCHECK,XP(a)
      • P(a);OGATE,P_SPINP(a),XP(C)::R1(A),XP(a)
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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).