MESON Chess Problem Database

Problem Display
PID: 178198 (8/8/8/Q7/8/1P2k2P/8/R3K2R w KQ - 0 1)

Vitanovski, Borislav

Vratnica-64, 2003

8/8/8/Q7/8/1P2k2P/8/R3K2R

#2

6 + 1

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Ra4?
      • threat
        • 2.Qc3#
      • 1...Kd3
        • 2.Qd2#
      • 1...Kf3!
  • Keys
    • 1.Qe5+!
      • 1...Kd3
        • 2.0-0-0#
      • 1...Kf3
        • 2.0-0#

Anticipated by 92916(1929), 107154(1965), 46970(1987)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • QAR2(F)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(F);CHECK
    • Vars
      • K(a);P-FLIGHT::0-0-0
      • K(a);P-FLIGHT::0-0
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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).