MESON Chess Problem Database

Problem Display
PID: 210074 (8/8/8/8/8/2B2K1Q/2k1N3/8 w - - 0 1)

Devos, Germain

Land og Folk, 1978

8/8/8/8/8/2B2K1Q/2k1N3/8

#2

4 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Kd1
        • 2.Qb1#
        • 2.Qd3#
      • 1...Kb3!
    • 1.Qh7+?
      • 1...Kd1
        • 2.Qb1#
        • 2.Qd3#
      • 1...Kb3!
  • Keys
    • 1.Qe6!
      • 1...Kb1
        • 2.Qb3#
      • 1...Kd1
        • 2.Qb3#
      • 1...Kd3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAR2(D)
      • K(a);S_FLIGHT::QAB(D)
      • K(a);S_FLIGHT::QAB1(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).