MESON Chess Problem Database

Problem Display
PID: 203224 (8/4K3/4N3/8/1pB1k2N/1R6/8/8 w - - 0 1)

Elekes, Dezso

Schweizerische Schachzeitung, 1924

8/4K3/4N3/8/1pB1k2N/1R6/8/8

#2

5 + 2

6490 yacpdb 2020
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Re3#
  • Tries
    • 1.Rb1?
      • threat
        • 2.Re1#
      • 1...Ke5
        • 2.Re1#
      • 1...Ke3!
    • 1.Rd3?
      • 1...Ke5
        • 2.Re3#
      • 1...b3!
    • 1.Rf3?
      • 1...Ke5
        • 2.Re3#
      • 1...b3!
    • 1.Rg3?
      • 1...Ke5
        • 2.Re3#
      • 1...b3!
    • 1.Rh3?
      • 1...Ke5
        • 2.Re3#
      • 1...b3!
  • Keys
    • 1.Rb2!
      • threat
        • 2.Re2#
      • 1...Ke3
        • 2.Re2#
      • 1...Ke5
        • 2.Re2#

This anticipates 227487(1926)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::R(A)
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • K(b);P-FLIGHT::R(A)
      • Refutation
        • P(a);
  • Actual
    • R(A);
    • Threat
      • R(A)
    • Vars
      • K(b);P-FLIGHT::R1(A)
      • K(b);P-FLIGHT::R(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).