MESON Chess Problem Database

Problem Display
PID: 231128 (5k2/3p1P1p/5K2/6P1/5N2/8/8/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

5k2/3p1P1p/5K2/6P1/5N2/8/8/8

#2

4 + 3

6490 yacpdb 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Se6#
    • 1...d6
      • 2.Se6#
    • 1...h5
      • 2.Sg6#
    • 1...h6
      • 2.Sg6#
  • Keys
    • 1.g6!
      • threat
        • 2.g7#
      • 1...hxg6
        • 2.Sxg6#

This anticipates 263074(2015)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • P(a);N_GUARD::S(A)
    • P(b);N_GUARD::S(A)
  • Actual
    • P(B);
    • Threat
      • P(B)
    • Vars
      • P(b);XP(B)::S(A),XP(b)
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).