MESON Chess Problem Database

Problem Display
PID: 18406 (8/8/8/8/4R3/1n1k1P2/BKR5/8 w - - 0 1)

Toth, Julius

3rd Prize, Sztalinvarosi Hirlap, 1955

8/8/8/8/4R3/1n1k1P2/BKR5/8

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Bc4#
    • 1...Sc1
      • 2.Bc4#
    • 1...Sd2
      • 2.Rc3#
    • 1...Sd4
      • 2.Bc4#
    • 1...Sc5
      • 2.Bc4#
  • Tries
    • 1.Rcc4?
      • 1...Sd4
        • 2.Rcxd4#
      • 1...Sa1
        • 2.Rcd4#
      • 1...Sc1
        • 2.Rcd4#
      • 1...Sd2
        • 2.Rc3#
        • 2.Rcd4#
      • 1...Sa5
        • 2.Rcd4#
      • 1...Sc5
        • 2.Rcd4#
      • 1...Kd2!
    • 1.Ree2?
      • 1...Sd2
        • 2.Rcxd2#
      • 1...Sd4
        • 2.Bc4#
        • 2.Rcd2#
      • 1...Sa1
        • 2.Rcd2#
      • 1...Sc1
        • 2.Rcd2#
      • 1...Sa5
        • 2.Rcd2#
      • 1...Sc5
        • 2.Rcd2#
      • 1...Kd4!
  • Keys
    • 1.Rce2!
      • threat
        • 2.Bb1#
      • 1...Sa1
        • 2.Bc4#
      • 1...Sd2
        • 2.R2e3#
      • 1...Sd4
        • 2.R4e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(a);OGATE::B(A)
    • S(a);SBLOCK::R1(C)
  • Tries
    • Try
      • R(C);
      • Vars
        • S(a);N_GUARD::R1(C),XS(a)
        • S(a);N_GUARD::R1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(E);
      • Vars
        • S(a);N_GUARD::R1(C),XS(a)
        • S(a);N_GUARD::R1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • B(A)
    • Vars
      • S(a);OGATE::B(A)
      • S(a);SBLOCK::R1(C)
      • S(a);SBLOCK::R1(E)
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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).