MESON Chess Problem Database

Problem Display
PID: 172509 (3r4/6n1/4N3/6Q1/4k3/8/3PK3/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2002

3r4/6n1/4N3/6Q1/4k3/8/3PK3/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sc5#
    • 1...Rd5
      • 2.Qf4#
    • 1...Ra8
      • 2.d3#
    • 1...Rb8
      • 2.d3#
    • 1...Rc8
      • 2.d3#
    • 1...Re8
      • 2.d3#
    • 1...Rf8
      • 2.d3#
    • 1...Rg8
      • 2.d3#
    • 1...Rh8
      • 2.d3#
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
      • 1...Rxd4
        • 2.Sc5#
      • 1...Sf5
        • 2.Qg2#
      • 1...Rd5
        • 2.Qf4#
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(c);SBLOCK::S(D)
    • R(c);SBLOCK::QAR1(C)
    • R(c);N_GUARD::P(A)
  • Actual
    • P(A);
    • Threat
      • QAR1(C)
    • Vars
      • R(c);SBLOCK,XP(A)::S(D)
      • S(b);SBLOCK::QAB(C)
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).