MESON Chess Problem Database

Problem Display
PID: 230276 (8/6Q1/2R5/4N3/4k3/8/2N5/5K2 w - - 0 1)

Shumarin, Vladimir Pavlovich

Zadachi i Etyudi, 2000

8/6Q1/2R5/4N3/4k3/8/2N5/5K2

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Rc5?
      • threat
        • 2.Qg4#
      • 1...Kf4
        • 2.Qg4#
      • 1...Kf5!
    • 1.Re6?
      • 1...Kf4
        • 2.Qg4#
      • 1...Kf5
        • 2.Qg4#
      • 1...Kd5!
    • 1.Qg4+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxe5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kf3
        • 2.Qg2#
      • 1...Kd5
        • 2.Qg2#
      • 1...Kf5
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • QAR2(E)
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT,XS(C)::QAR1(E)
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::QAB(E)
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).