MESON Chess Problem Database

Problem Display
PID: 244667 (K7/3R4/1k6/1P6/8/N1N5/4R3/8 w - - 0 1)

Chernyavsky, Mykola Vasilovich

Mat, 1978

K7/3R4/1k6/1P6/8/N1N5/4R3/8

#2

6 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5+?
      • 1...Ka5
        • 2.Ra7#
      • 1...Kc5!
    • 1.Re4?
      • 1...Kc5
        • 2.Sa4#
      • 1...Ka5!
  • Keys
    • 1.Rb2!
      • 1...Ka5
        • 2.Sc4#
      • 1...Kc5
        • 2.Sa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT::S(C)
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).