Problem Display
PID: 202654 (8/8/8/8/8/1p2p3/4R2p/1R2K2k w - - 0 1)

Gross, J

Neues Grazer Tagblatt (Grazer Wochenschach), 1923

8/8/8/8/8/1p2p3/4R2p/1R2K2k

#2

3 + 4


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Kd1?
      • 1...b2
        • 2.Kc2#
      • 1...Kg1!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Ke2#
      • 1...exf2+
        • 2.Kxf2#
      • 1...Kg1
        • 2.Ke2#
      • 1...e2
        • 2.Kxe2#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(c);::R(A)+K(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • R(A)+K(B)
    • Vars
      • P(d);CHECK,XR(C)::R(A)+K(B),XP(d)
      • K(a);P-FLIGHT::R(A)+K(B)
      • P(d);::R(A)+K(B),XP(d)


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).