MESON Chess Problem Database

Problem Display
PID: 174931 (8/5p2/1K6/6Q1/2B1k3/1n6/bB2p3/1N6 w - - 0 1)

Gamage, Frederick

American Chess World, 1901

8/5p2/1K6/6Q1/2B1k3/1n6/bB2p3/1N6

#2

5 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Sd2#
    • 1...Sc1
      • 2.Sd2#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sd4
      • 2.Sd2#
    • 1...Sa5
      • 2.Sd2#
    • 1...Sc5
      • 2.Sd2#
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Qf4#
      • 1...Kf3!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qg4#
      • 1...Kf3
        • 2.Bd5#
      • 1...Kxd4
        • 2.Qf4#
      • 1...Sxd4
        • 2.Sd2#
      • 1...f5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::S(A)
    • S(c);N_GUARD::S(A),XS(c)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR2(D)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAR2(D)
    • Vars
      • K(d);S_FLIGHT::B(C)
      • K(d);P-FLIGHT,XB(B)::QAR2(D)
      • S(c);N_GUARD,SBLOCK,XB(B)::S(A)
      • P(e);SBLOCK::QAR1(D)
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).