MESON Chess Problem Database

Problem Display
PID: 255044 (5B2/Kp5R/8/k2N4/8/1B6/8/8 w - - 0 1)

Mlynka, Karol

Sachsische Zeitung, 1983

(First published on Fri Jan 14 1983)

5B2/Kp5R/8/k2N4/8/1B6/8/8

#2

5 + 2

3713 Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Bb4#
  • Tries
    • 1.Sb4?
      • 1...Kb5
        • 2.Rh5#
      • 1...b5
        • 2.Sc6#
      • 1...b6!
    • 1.Rc7?
      • 1...Kb5
        • 2.Rc5#
      • 1...b5
        • 2.Bb4#
      • 1...b6!
  • Keys
    • 1.Rh5!
      • threat
        • 2.Sb6#
      • 1...Kb5
        • 2.Sb4#
      • 1...b6
        • 2.Sxb6#
      • 1...b5
        • 2.Bb4#

This anticipates 22573(1993)

FEATURES

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