MESON Chess Problem Database

Problem Display
PID: 154379 (rN3b1N/p3p1p1/1P2k1p1/p1PRPpK1/2pP3P/7Q/2B1P1P1/8 w - f5 0 1)

Norlin, Adolf

Tidskrift for Schack, 1907

rN3b1N/p3p1p1/1P2k1p1/p1PRPpK1/2pP3P/7Q/2B1P1P1/8

#2

13 + 10

4035 Aarsskrift for DSK 1935

SOLUTION

  • SOUND
  • Tries
    • 1.Qxf5+?
      • 1...Kxd5
        • 2.Qd7#
      • 1...gxf5!
  • Keys
    • 1.exf5 ep+!
      • 1...Kxd5
        • 2.Qd7#

This is a version

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,XP(c)
      • Vars
        • K(d);OGATE,S_FLIGHT,XR(H)::QAR2(D)
      • Refutation
        • P(e);XQ(D)
  • Actual
    • P(I);CHECK,EP,XP(c)
    • Vars
      • K(d);OGATE,S_FLIGHT,XR(H)::QAR2(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).