MESON Chess Problem Database

Problem Display
PID: 156411 (k3B3/1R6/K7/7b/6R1/8/8/8 w - - 0 1)

Krivenko, Valery Aleksinovich

Best Problems, 2006

k3B3/1R6/K7/7b/6R1/8/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Keys
    • 1.Rg8!
      • threat
        • 2.Bxh5#
        • 2.Bg6#
        • 2.Bf7#
      • 1...Be2+
        • 2.Bb5#
      • 1...Bxe8
        • 2.Rxe8#
      • 1...Bg6
        • 2.Bxg6#
        • 2.Bf7#
      • 1...Bd1
        • 2.Ba4#
        • 2.Bb5#
        • 2.Bh5#
        • 2.Bc6#
        • 2.Bg6#
        • 2.Bd7#
        • 2.Bf7#
      • 1...Bf3
        • 2.Ba4#
        • 2.Bb5#
        • 2.Bh5#
        • 2.Bc6#
        • 2.Bg6#
        • 2.Bd7#
        • 2.Bf7#
      • 1...Bg4
        • 2.Bd7#
      • 1...Bf7
        • 2.Bxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(A);
    • Threat
      • DUALS(3)
    • Vars
      • B(a);CHECK,N_GUARD::R(A)+B(D)
      • B(a);OGATE,P_SPINB(a),XB(D)::R(A),XB(a)
      • B(a);N_GUARD::R(A)+B(D)
      • B(a);::R(A)+B(D),XB(a)
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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).