MESON Chess Problem Database

Problem Display
PID: 189672 (K7/8/8/4p3/4BR2/4N1pk/7p/6Rb w - - 0 1)

Hajek, Frantisek

Pravo lidu, 1912

K7/8/8/4p3/4BR2/4N1pk/7p/6Rb

#2

5 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Bxg2#
  • Tries
    • 1.Rg2?
      • threat
        • 2.Bf5#
      • 1...Bxg2
        • 2.Bxg2#
      • 1...exf4!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Bf5#
        • 2.Rh4#
      • 1...Bxg2
        • 2.Bxg2#
      • 1...hxg1Q
        • 2.Rh4#
      • 1...hxg1S
        • 2.Rh4#
      • 1...hxg1B
        • 2.Rh4#
      • 1...hxg1R
        • 2.Rh4#
      • 1...exf4
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::B(C),XB(a)
  • Tries
    • Try
      • R(A);N_SPINB(C)
      • Threat
        • B(C)
      • Vars
        • B(a);OGATE,P_PINB(C),XR(A)::B(C),XB(a)
      • Refutation
        • P(e);XR(D)
  • Actual
    • S(B);N_SPINB(C)
    • Threat
      • DUALS(2)
    • Vars
      • B(a);OGATE,P_PINB(C),XS(B)::B(C),XB(a)
      • P(b);XR(A)::R1(D)
      • P(e);XR(D)::B(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).