MESON Chess Problem Database

Problem Display
PID: 190223 (8/1K1N4/5p1R/1p1kB3/1bR5/8/2B1P3/8 w - - 0 1)

Gold, Zsigmund

Pesti Naplo, 1913

8/1K1N4/5p1R/1p1kB3/1bR5/8/2B1P3/8

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...fxe5
      • 2.Sb6#
    • 1...f5
      • 2.Rd4#
  • Tries
    • 1.Rxf6?
      • threat
        • 2.Rd4#
      • 1...bxc4
        • 2.e4#
      • 1...Bc3
        • 2.Rc5#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Kxc4!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Rd4#
      • 1...Kxc4
        • 2.Be6#
      • 1...bxc4
        • 2.e4#
      • 1...fxe5
        • 2.Sb6#
      • 1...Bc3
        • 2.Rc5#
      • 1...Bc5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(d);SBLOCK,XB(D)::S(G)
    • P(d);::R1(C)
  • Tries
    • Try
      • R(E);XP(d)
      • Threat
        • R1(C)
      • Vars
        • P(b);SBLOCK,XR(C)::P(B)
        • B(a);N_GUARD::R1(C)
        • B(a);N_GUARD::R1(C),XB(a)
      • Refutation
        • K(c);S_FLIGHT,XR(C)
  • Actual
    • B(A);
    • Threat
      • R1(C)
    • Vars
      • K(c);S_FLIGHT,XR(C)::B(A)
      • P(b);SBLOCK,XR(C)::P(B)
      • P(d);SBLOCK,XB(D)::S(G)
      • B(a);N_GUARD::R1(C)
      • B(a);N_GUARD::R1(C),XB(a)
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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).