MESON Chess Problem Database

Problem Display
PID: 29184 (5k1n/R5n1/5N2/4N3/8/8/r6r/4K3 w - - 0 1)

Bonus Socius

Source?, 1300

5k1n/R5n1/5N2/4N3/8/8/r6r/4K3

#2

4 + 5

5658 Beispiele zur Ideengeschichte des Schachproblems (Josef Breuer) 1982
3310 2345 Chess Problems 1997
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Sxg6#
      • 2.Rf7#
    • 1...Sf7
      • 2.Sg6#
      • 2.Rxf7#
  • Keys
    • 1.Rf7+!
      • 1...Sxf7
        • 2.Sg6#

This anticipates 231593(1927)

There are these versions: 77321

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(D);CHECK
    • Vars
      • S(e);SBLOCK,XR(D)::S(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).