MESON Chess Problem Database

Problem Display
PID: 255599 (8/8/8/2N1p2K/4pk2/7R/2B5/8 w - - 0 1)

Lechtenfeld, Theodor Gottfried

Wiener Schachzeitung, 1933

8/8/8/2N1p2K/4pk2/7R/2B5/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Rf3#
    • 1...e3
      • 2.Se6#
  • Tries
    • 1.Kh4?
      • 1...e3
        • 2.Se6#
      • 1...Kf5!
    • 1.Bd1?
      • 1...e3
        • 2.Rf3#
      • 1...Kf5!
    • 1.Bd3?
      • 1...Kf5
        • 2.Rf3#
      • 1...e3
        • 2.Se6#
      • 1...exd3!
    • 1.Ra3?
      • 1...Kf5
        • 2.Rf3#
      • 1...e3!
    • 1.Rb3?
      • 1...Kf5
        • 2.Rf3#
      • 1...e3!
    • 1.Rc3?
      • 1...Kf5
        • 2.Rf3#
      • 1...e3!
    • 1.Re3?
      • 1...Kf5
        • 2.Rf3#
      • 1...Kxe3!
  • Keys
    • 1.Bb1!
      • 1...Kf5
        • 2.Rf3#
      • 1...e3
        • 2.Se6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
    • P(a);::S(C)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(a);::S(C)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(a)
    • Try
      • B(A);
      • Vars
        • P(a);N_GUARD::R1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
        • P(a);::S(C)
      • Refutation
        • P(a);XB(A)
    • Try
      • R(B);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
      • Refutation
        • P(a);
    • Try
      • R(B);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
      • Refutation
        • P(a);
    • Try
      • R(B);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
      • Refutation
        • P(a);
    • Try
      • R(B);
      • Vars
        • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • B(A);
    • Vars
      • K(b);N_GUARD,P-FLIGHT,P_SPINP(a)::R(B)
      • P(a);::S(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).