MESON Chess Problem Database

Problem Display
PID: 206709 (6R1/8/3B4/6pk/6R1/6P1/6K1/8 w - - 0 1)

Lillja, John Lennart Waldemar

Helsingin Sanomat, 1925

6R1/8/3B4/6pk/6R1/6P1/6K1/8

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Be7?
      • 1...Kxg4
        • 2.Rxg5#
      • 1...Kh6!
  • Keys
    • 1.Bf4!
      • 1...Kxg4
        • 2.Rxg5#
      • 1...Kh6
        • 2.Rh4#
      • 1...gxf4
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT,XR(C)::R1(E),XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT,XR(C)::R1(E),XP(a)
      • K(b);P-FLIGHT,P_SPINP(a)::R(C)
      • P(a);N_GUARD,XB(D)::R1(C)
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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).