Problem Display
PID: 242065 (6B1/5pR1/5K2/7k/8/6P1/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

6B1/5pR1/5K2/7k/8/6P1/8/8

#2

4 + 2


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kh6
      • 2.Rh7#
  • Tries
    • 1.Rg4?
      • threat
        • 2.Rh4#
      • 1...Kh6
        • 2.Rh4#
      • 1...Kxg4!
    • 1.Rxf7?
      • 1...Kh6
        • 2.Rh7#
      • 1...Kg4!
    • 1.g4+?
      • 1...Kh6
        • 2.Rh7#
      • 1...Kh4!
  • Keys
    • 1.Kf5!
      • threat
        • 2.Rh7#
      • 1...Kh6
        • 2.Rh7#

FEATURES


  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R1(C)
  • Tries
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • R(C);XP(b)
      • Vars
        • K(a);P-FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(B);P-FLIGHT
    • Threat
      • R(C)
    • Vars
      • K(a);P-FLIGHT::R1(C)


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).