MESON Chess Problem Database

Problem Display
PID: 52795 (8/B2K4/8/3k1p2/4R1B1/5PP1/4P3/8 w - - 0 1)

Zangger, Rudolf

Schweizerische Schachzeitung, 1901

8/B2K4/8/3k1p2/4R1B1/5PP1/4P3/8

#2

7 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Be6#
  • Tries
    • 1.Bh3?
      • 1...f4
        • 2.Be6#
      • 1...fxe4!
    • 1.Rf4?
      • 1...Ke5
        • 2.Rxf5#
      • 1...fxg4!
  • Keys
    • 1.f4!
      • threat
        • 2.Rd4#
      • 1...Kxe4
        • 2.Bf3#
      • 1...fxe4
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(b);OGATE::B(E)
  • Tries
    • Try
      • B(E);
      • Vars
        • P(b);OGATE::B(E)
      • Refutation
        • P(b);XR(D)
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::R1(D),XP(b)
      • Refutation
        • P(b);XB(E)
  • Actual
    • P(B);
    • Threat
      • R1(D)
    • Vars
      • K(a);OGATEB,S_FLIGHT,XR(D)::B(E)
      • P(b);OGATE,SBLOCK,XR(D)::B(E)
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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).