MESON Chess Problem Database

Problem Display
PID: 222922 (k7/Pp6/4p3/1Np1K3/8/8/P3P1pp/Q6R w - - 0 1)

Chocolous, Jiri

Sachmat, 1885

k7/Pp6/4p3/1Np1K3/8/8/P3P1pp/Q6R

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd4?
      • threat
        • 2.Qd8#
      • 1...b6
        • 2.Qe4#
      • 1...cxd4!
  • Keys
    • 1.Qg1!
      • 1...gxh1Q
        • 2.Qg8#
      • 1...gxh1S
        • 2.Qg8#
      • 1...gxh1B
        • 2.Qg8#
      • 1...gxh1R
        • 2.Qg8#
      • 1...hxg1Q
        • 2.Rh8#
      • 1...hxg1S
        • 2.Rh8#
      • 1...hxg1B
        • 2.Rh8#
      • 1...hxg1R
        • 2.Rh8#
      • 1...b6
        • 2.Qxg2#
      • 1...c4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • P(e);OGATEB::QAB(A)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • P(a);OGATE,XR(B)::QAR(A)
      • P(b);OGATE,XQ(A)::R(B)
      • P(e);OGATEB::QAB(A),XP(a)
      • P(c);::S(E)
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).