MESON Chess Problem Database

Problem Display
PID: 207227 (K6R/7p/8/8/6N1/5kp1/2P3N1/7Q w - - 0 1)

Klark, Dmitry Vasilevich

La Strategie, 1869

K6R/7p/8/8/6N1/5kp1/2P3N1/7Q

#2

6 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rf8+?
      • 1...Ke2
        • 2.Qe1#
      • 1...Kxg4
        • 2.Qh4#
      • 1...Ke4!
    • 1.Qd1+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxg2!
    • 1.Qf1+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Kxg4!
  • Keys
    • 1.Qxh7!
      • 1...Ke2
        • 2.Qd3#
      • 1...Kxg2
        • 2.Qh1#
      • 1...Kxg4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • Q(A);XP(c)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);OGATEB,S_FLIGHT,XS(C)::QAB1(A)
      • K(a);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
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).