MESON Chess Problem Database

Problem Display
PID: 172546 (6bn/2KP2Q1/4k3/3N4/8/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2004

6bn/2KP2Q1/4k3/3N4/8/8/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qe5+?
      • 1...Kf7
        • 2.Qf6#
      • 1...Kxe5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.d8S#
      • 1...Kf7
        • 2.Qf6#
      • 1...Sf7
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Threat
      • P=S
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • S(c);SBLOCK::S(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).