MESON Chess Problem Database

Problem Display
PID: 48008 (8/6K1/7R/4pk2/8/6Pn/4Q3/8 w - - 0 1)

Gulyaev, Aleksandr Pavlovich (aka Grin, AP)

Polish Chess Federation, 1986

8/6K1/7R/4pk2/8/6Pn/4Q3/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kg5
      • 2.Rh5#
      • 2.Qh5#
    • 1...Sg5
      • 2.Rf6#
  • Tries
    • 1.Qf3+?
      • 1...Kg5
        • 2.Rh5#
        • 2.Rg6#
        • 2.Qh5#
      • 1...Sf4!
    • 1.Qe4+?
      • 1...Kg5
        • 2.Qg6#
      • 1...Kxe4!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Qg4#
      • 1...e4
        • 2.Qb5#
      • 1...Sf2
        • 2.Qf3#
      • 1...Sf4
        • 2.g4#
      • 1...Sg5
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::R1(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(c);S_FLIGHT,XQ(A)
  • Actual
    • R(C);
    • Threat
      • QAB1(A)
    • Vars
      • P(b);OGATEB,SBLOCK::QAR(A)
      • S(a);N_GUARD::QAR2(A)
      • S(a);SBLOCK::P(B)
      • S(a);SBLOCK::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).