MESON Chess Problem Database

Problem Display
PID: 163652 (8/8/8/4K3/8/2PR1RP1/4k3/1n1NrN1n w - - 0 1)

Fabel, Karl

Basler Nachrichten, 1952

8/8/8/4K3/8/2PR1RP1/4k3/1n1NrN1n

#2

7 + 4

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd1
      • 2.Rde3#
    • 1...Rxf1
      • 2.Rfe3#
    • 1...Sxc3
      • 2.Sxc3#
    • 1...Sxg3
      • 2.Sxg3#
  • Tries
    • 1.c4?
      • 1...Rxd1
        • 2.Rde3#
      • 1...Rxf1
        • 2.Rfe3#
      • 1...Sxg3
        • 2.Sxg3#
      • 1...Sd2
        • 2.Sc3#
      • 1...Sa3
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sf2!
  • Keys
    • 1.Ke4!
      • 1...Sd2+
        • 2.Rxd2#
      • 1...Sxc3+
        • 2.Sxc3#
      • 1...Sf2+
        • 2.Rxf2#
      • 1...Sxg3+
        • 2.Sxg3#
      • 1...Rxd1
        • 2.Rde3#
      • 1...Rxf1
        • 2.Rfe3#
      • 1...Sa3
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK,XS(A)::R1(D)
    • R(b);SBLOCK,XS(B)::R1(E)
    • S(a);XP(C)::S(A),XS(a)
    • S(c);XP(F)::S(B),XS(c)
  • Tries
    • Try
      • P(C);
      • Vars
        • R(b);SBLOCK,XS(A)::R1(D)
        • R(b);SBLOCK,XS(B)::R1(E)
        • S(c);XP(F)::S(B),XS(c)
        • S(a);N_GUARD::S(A)
        • S(a);N_GUARD::S(A),XS(a)
      • Refutation
        • S(c);
  • Actual
    • K(G);P-FLIGHT
    • Vars
      • S(a);CHECK,N_GUARD::R1(D),XS(a)
      • S(a);CHECK,XP(C)::S(A),XS(a)
      • S(c);CHECK,N_GUARD::R1(E),XS(c)
      • S(c);CHECK,XP(F)::S(B),XS(c)
      • R(b);SBLOCK,XS(A)::R1(D)
      • R(b);SBLOCK,XS(B)::R1(E)
      • S(a);N_GUARD::R1(D)
HTML5 logo

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).