MESON Chess Problem Database

Problem Display
PID: 2436 (2NR4/2N1p3/1np5/1p2k1K1/n2p4/5P2/8/8 w - - 0 1)

Kling, Josef

Source?, 0000

2NR4/2N1p3/1np5/1p2k1K1/n2p4/5P2/8/8

#2

5 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sa7?
      • threat
        • 2.Sxc6#
      • 1...c5
        • 2.Sc6#
      • 1...Sd7!
    • 1.Sxe7?
      • threat
        • 2.Sxc6#
        • 2.Sg6#
      • 1...c5
        • 2.Sc6#
        • 2.Sg6#
      • 1...Sd7!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf7#
        • 2.f4#
      • 1...exd6
        • 2.Re8#
      • 1...Sd7
        • 2.Sf7#
      • 1...d3
        • 2.Sf7#
      • 1...Sd5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D),XP(f)
      • Vars
        • P(f);::S(D)
      • Refutation
        • S(e);
    • Try
      • S(D);XP(g)
      • Threat
        • DUALS(2)
      • Refutation
        • S(e);
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • P(g);OGATEB,SBLOCK,XS(D)::R(E)
      • S(e);::S(D)
      • P(b);::S(D)
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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).