MESON Chess Problem Database

Problem Display
PID: 4907 (8/7B/2p5/5N2/4k3/7N/Q7/4K3 w - - 0 1)

Anonymous

Shakhmatny Zhurnal, 1893

8/7B/2p5/5N2/4k3/7N/Q7/4K3

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qe2#
  • Tries
    • 1.Qc4+?
      • 1...Kf3
        • 2.Qe2#
      • 1...Ke5!
    • 1.Qe6+?
      • 1...Kf3
        • 2.Qe2#
      • 1...Kd3!
  • Keys
    • 1.Bg8!
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.Qe2#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT,XS(D)::QAB1(B)
      • P(b);N_GUARD::QAB1(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).