MESON Chess Problem Database

Problem Display
PID: 175798 (8/2NNn3/B3p3/8/4k1p1/1P6/5Q2/7K w - - 0 1)

Clark, WA

San Francisco Chronicle, 1898

8/2NNn3/B3p3/8/4k1p1/1P6/5Q2/7K

#2

6 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Sc5#
      • 2.Sf6#
  • Tries
    • 1.Qe3+?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxe3!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc3#
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5
        • 2.Qg2#
      • 1...Sd5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(a);S_FLIGHT::S(F)
      • K(a);S_FLIGHT::QAB(B)
      • S(d);SBLOCK::S(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).