MESON Chess Problem Database

Problem Display
PID: 178243 (5K2/5P2/5N2/4Qpk1/5N2/8/5P1P/8 w - - 0 1)

Hadzi-Vaskov, Georgi

Vratnica-64, 2009

5K2/5P2/5N2/4Qpk1/5N2/8/5P1P/8

#2

7 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • 1...Kxf4
        • 2.Qe3#
        • 2.Qg3#
      • 1...Kh4
        • 2.Qg3#
      • 1...Kh6!
    • 1.Qe3?
      • 1...Kh4
        • 2.Sg2#
        • 2.Sg6#
        • 2.Qg3#
      • 1...Kxf6
        • 2.Qe7#
      • 1...Kh6!
    • 1.Qxf5+?
      • 1...Kh4
        • 2.Sg2#
        • 2.Sg6#
        • 2.Qg4#
        • 2.Qh5#
      • 1...Kh6
        • 2.Sg4#
        • 2.Sg8#
        • 2.Qg6#
        • 2.Qh5#
      • 1...Kxf5!
  • Keys
    • 1.Qe2!
      • 1...Kxf4
        • 2.Qe3#
      • 1...Kh4
        • 2.Qh5#
      • 1...Kxf6
        • 2.Qe7#
      • 1...Kh6
        • 2.Qh5#

FEATURES

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