MESON Chess Problem Database

Problem Display
PID: 172497 (8/8/8/6p1/6Pk/1Q2R3/6Kn/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2001

8/8/8/6p1/6Pk/1Q2R3/6Kn/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg4
      • 2.Rh3#
  • Tries
    • 1.Re4?
      • threat
        • 2.Qg3#
        • 2.Qh3#
      • 1...Sxg4
        • 2.Qh3#
      • 1...Sf1
        • 2.Qh3#
      • 1...Sf3!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qh5#
      • 1...Kxg4
        • 2.Re4#
      • 1...Sxg4
        • 2.Rh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK,XP(D)::R1(C)
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);P_SPINS(a),XP(D)::QAR1(B)
        • S(a);::QAR1(B)
      • Refutation
        • S(a);
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(D)::R(C)
      • S(a);SBLOCK,XP(D)::R1(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).