MESON Chess Problem Database

Problem Display
PID: 106082 (8/8/8/Q2K1k2/2p3N1/8/8/2B4R w - - 0 1)

Dubovtsev, Yuri

Cherkassian Championship, 1990

8/8/8/Q2K1k2/2p3N1/8/8/2B4R

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qg5#
      • 1...Kxg4
        • 2.Qf4#
      • 1...Kg6!
    • 1.Qc7?
      • 1...Kxg4
        • 2.Qf4#
      • 1...Kg6
        • 2.Qh7#
      • 1...c3!
    • 1.Qd8?
      • threat
        • 2.Qg5#
      • 1...Kg6
        • 2.Qf6#
      • 1...Kxg4!
  • Keys
    • 1.Qc3!
      • 1...Kxg4
        • 2.Qh3#
      • 1...Kg6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);S_FLIGHT,XS(C)::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(b);S_FLIGHT,XS(C)::QAR1(D)
        • K(b);S_FLIGHT::QAB1(D)
      • Refutation
        • P(a);
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
  • Actual
    • Q(D);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(D)
      • K(b);S_FLIGHT::QAR1(D)
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).