MESON Chess Problem Database

Problem Display
PID: 205560 (8/8/8/5K2/8/4pk2/7Q/7N w - - 0 1)

Lazard, Frederic

La Strategie, 1925

8/8/8/5K2/8/4pk2/7Q/7N

#2

3 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Qg3#
      • 2.Qf2#
      • 2.Qh3#
  • Tries
    • 1.Ke5?
      • 1...e2
        • 2.Qg3#
        • 2.Qh3#
      • 1...Kg4!
    • 1.Qg1?
      • threat
        • 2.Qf1#
        • 2.Qg4#
      • 1...e2
        • 2.Qf2#
        • 2.Qg3#
      • 1...Ke2!
  • Keys
    • 1.Qc2!
      • 1...e2
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • P(a);::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).