MESON Chess Problem Database

Problem Display
PID: 272289 (8/5K1p/3pp2k/5np1/5Q2/4P3/7P/2BB4 w - - 0 1)

Abdullayev, Elmar

Mosiashvili-75 JT (Kudesnik), 2023

8/5K1p/3pp2k/5np1/5Q2/4P3/7P/2BB4

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Qf6#
    • 1...Sg3
      • 2.Qf6#
    • 1...Sd4
      • 2.Qf6#
    • 1...Sg7
      • 2.Qf6#
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qh5#
      • 1...Sg3
        • 2.Qf6#
      • 1...Sg7
        • 2.Qf6#
      • 1...g4!
    • 1.Qg4?
      • threat
        • 2.Qh5#
      • 1...Sg3
        • 2.Qxe6#
      • 1...Sg7!
    • 1.Qxf5?
      • threat
        • 2.Qh3#
        • 2.Qxe6#
        • 2.Qf6#
      • 1...g4
        • 2.e4#
      • 1...e5
        • 2.Qh3#
        • 2.Qe6#
        • 2.Qf6#
      • 1...exf5!
  • Keys
    • 1.e4!
      • threat
        • 2.Qxg5#
      • 1...gxf4
        • 2.Bxf4#
      • 1...Se3
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • S(a);OGATE,XP(D)::QAR2(E)
    • S(a);OGATE::QAR2(E)
  • Tries
    • Try
      • Q(E);N_PINP(b)
      • Threat
        • QAR1(E)
      • Vars
        • S(a);OGATE::QAR2(E)
      • Refutation
        • P(b);
    • Try
      • Q(E);N_PINP(b)
      • Threat
        • QAR1(E)
      • Vars
        • S(a);OGATE::QAR(E),XP(d)
      • Refutation
        • S(a);
    • Try
      • Q(E);N_PINP(b),XS(a)
      • Threat
        • DUALS(3)
      • Vars
        • P(b);::B(A)+P(D)
      • Refutation
        • P(d);XQ(E)
  • Actual
    • P(D);
    • Threat
      • QAB1(E),XP(b)
    • Vars
      • P(b);OGATE,XQ(E)::B(A),XP(b)
      • S(a);OGATE::QAR2(E)
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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).