MESON Chess Problem Database

Problem Display
PID: 45897 (6r1/8/4Q3/6Bk/6R1/4K1P1/8/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Probleemblad, 1999

6r1/8/4Q3/6Bk/6R1/4K1P1/8/8

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002
136 Problem Observer 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg5
      • 2.Rh4#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Rh4#
        • 2.Qh6#
      • 1...Rxg5
        • 2.Rh4#
        • 2.Rxg5#
      • 1...Rg6
        • 2.Rh4#
      • 1...Rh8
        • 2.Rh4#
        • 2.Qf7#
      • 1...Rf8+!
    • 1.Bd8?
      • threat
        • 2.Rh4#
      • 1...Rxd8
        • 2.Qg6#
      • 1...Rxg4!
    • 1.Re4?
      • threat
        • 2.Qh6#
      • 1...Kxg5
        • 2.Re5#
      • 1...Rxg5
        • 2.Rh4#
      • 1...Rg6
        • 2.Qg4#
      • 1...Rh8!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Rh4#
      • 1...Rxg4
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK,XB(D)::R1(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::R1(C)
      • Refutation
        • R(b);CHECK
    • Try
      • B(D);
      • Threat
        • R1(C)
      • Vars
        • R(b);N_GUARD,XB(D)::QAB1(E)
      • Refutation
        • R(b);XR(C)
    • Try
      • R(C);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XB(D)::R(C)
        • R(b);SBLOCK,XB(D)::R1(C)
        • R(b);SBLOCK::QAB1(E)
      • Refutation
        • R(b);
  • Actual
    • B(D);
    • Threat
      • R1(C)
    • Vars
      • R(b);SBLOCK,XR(C)::QAR1(E)
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).