MESON Chess Problem Database

Problem Display
PID: 227659 (8/3Nb3/3p4/1K1R3B/4k3/4P2p/6P1/3N2n1 w - - 0 1)

Braun, Bella

Ujsag, 1926

8/3Nb3/3p4/1K1R3B/4k3/4P2p/6P1/3N2n1

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Sxf6#
    • 1...Bf8
      • 2.Sf6#
    • 1...Se2
      • 2.Bf3#
    • 1...Sf3
      • 2.Bxf3#
  • Tries
    • 1.Sf2+?
      • 1...Kxd5
        • 2.Bf7#
      • 1...Kxe3!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Rd4#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Bf6
        • 2.Sxf6#
      • 1...Se2
        • 2.Bf3#
      • 1...Sf3
        • 2.Bxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(e);N_GUARD::S(G),XB(e)
    • B(e);N_GUARD::S(G)
    • S(a);N_GUARD::B(F)
    • S(a);N_GUARD::B(F),XS(a)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);S_FLIGHT,XR(E)::B(F)
      • Refutation
        • K(c);P-FLIGHT,XP(C)
  • Actual
    • B(F);
    • Threat
      • R1(E)
    • Vars
      • K(c);S_FLIGHT,XR(E)::S(A)
      • B(e);N_GUARD::S(G),XB(e)
      • S(a);N_GUARD::B(F)
      • S(a);N_GUARD::B(F),XS(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).