MESON Chess Problem Database

Problem Display
PID: 172334 (8/8/4p3/6p1/8/5k2/4N2Q/4K2R w K - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

8/8/4p3/6p1/8/5k2/4N2Q/4K2R

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qh3#
  • Tries
    • 1.Qf4+?
      • 1...Kg2
        • 2.Rh2#
        • 2.Qf1#
        • 2.Qe4#
      • 1...gxf4!
    • 1.Qg2+?
      • 1...Ke3
        • 2.Rh3#
      • 1...Kxg2!
  • Keys
    • 1.Qe5!
      • 1...Kg2
        • 2.Qe4#
      • 1...Kg4
        • 2.Qe4#
      • 1...g4
        • 2.0-0#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • P(b);XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAB(D)
      • K(a);S_FLIGHT::QAR2(D)
      • P(b);SBLOCK::0-0
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).