MESON Chess Problem Database

Problem Display
PID: 193763 (2b5/8/7B/3p3k/4B1NN/4P3/1K3b1R/8 w - - 0 1)

Leopold, Dr Rudolf L

Deutsche Schachzeitung, 1916

2b5/8/7B/3p3k/4B1NN/4P3/1K3b1R/8

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sg2+?
      • 1...Bh4
        • 2.Rxh4#
      • 1...Kxg4!
    • 1.Sf3+?
      • 1...Bh4
        • 2.Rxh4#
      • 1...Kxg4!
    • 1.Sg6+?
      • 1...Bh4
        • 2.Rxh4#
      • 1...Kxg4!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Sf6#
      • 1...Kxg4
        • 2.Bf3#
      • 1...Bxg4
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(B),XB(a)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • S(F);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(B),XB(a)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • S(F);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::R1(B),XB(a)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
  • Actual
    • B(G);
    • Threat
      • S(E)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(E)::B(D)
      • B(d);SBLOCK,XS(E)::B(D)
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).