MESON Chess Problem Database

Problem Display
PID: 257728 (1B6/8/8/pBR1Pp2/K2k2nR/3N4/3P2P1/8 w - - 0 1)

Figura, Josef

Wiener Schachzeitung, 1936

1B6/8/8/pBR1Pp2/K2k2nR/3N4/3P2P1/8

#2

9 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4?
      • threat
        • 2.Rc4#
      • 1...Ke4
        • 2.Rc4#
      • 1...Kxc5
        • 2.Ba7#
      • 1...axb4!
    • 1.Rxg4+?
      • 1...f4
        • 2.Rxf4#
      • 1...fxg4!
    • 1.Rc4+?
      • 1...Kd5
        • 2.Sf4#
      • 1...Kxd3!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Rc4#
      • 1...Ke4
        • 2.Rc4#
      • 1...Kxc5
        • 2.Ba7#
      • 1...Sxe5
        • 2.Se6#
      • 1...Se3
        • 2.Se6#

This is a version

Version by Udo Degener, Albrecht Collection.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(G)
      • Vars
        • K(a);P-FLIGHT::R(G)
        • K(a);N_SPINS(b),OGATEB,S_FLIGHT,XR(G)::B(I)
      • Refutation
        • P(c);XS(C)
    • Try
      • R(E);CHECK,XS(b)
      • Vars
        • P(d);P_SPINP(d)::R(E),XP(d)
      • Refutation
        • P(d);XR(E)
    • Try
      • R(G);CHECK
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT::S(C)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT,XS(C)
  • Actual
    • S(C);N_PINS(b)
    • Threat
      • R1(G)
    • Vars
      • K(a);P-FLIGHT::R(G)
      • K(a);OGATEB,S_FLIGHT,XR(G)::B(I)
      • S(b);XP(H)::R(E)+S(C),DCHECK
      • S(b);::R(E)+S(C),DCHECK
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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).