MESON Chess Problem Database

Problem Display
PID: 150094 (8/2K1R3/6P1/2p3p1/2P2kn1/3B3P/3N1p1P/Q7 w - - 0 1)

Abdullayev, Suleyman

Problemist Ukraini, 2013

8/2K1R3/6P1/2p3p1/2P2kn1/3B3P/3N1p1P/Q7

#2

9 + 5

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sxh2
      • 2.Qe5#
    • 1...Se3
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sf6
      • 2.Qe5#
      • 2.Qxf6#
    • 1...Sh6
      • 2.Qe5#
  • Tries
    • 1.Bf1?
      • 1...Sxh2
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Se3
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
        • 2.Qxf6#
      • 1...Sh6
        • 2.Qe5#
      • 1...Kf5!
    • 1.Qa8?
      • threat
        • 2.Qf3#
        • 2.Qe4#
      • 1...Se5
        • 2.Qe4#
      • 1...f1Q
        • 2.Qe4#
      • 1...f1R
        • 2.Qe4#
      • 1...Sf6
        • 2.Qf3#
      • 1...Sxh2!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Qf3#
        • 2.Qe4#
      • 1...Sxh2
        • 2.Qxh2#
      • 1...Se5
        • 2.Qe4#
      • 1...f1Q
        • 2.Qe4#
      • 1...f1R
        • 2.Qe4#
      • 1...Sf6
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(c);N_GUARD,XP(C)::QAB1(A)
    • S(c);N_GUARD::QAB1(A)
    • S(c);N_GUARD::QAB1(A),XS(c)
  • Tries
    • Try
      • B(D);
      • Vars
        • S(c);N_GUARD,XP(C)::QAB1(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
        • S(c);N_GUARD::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::QAR1(A)
        • P(a);::QAR1(A)
      • Refutation
        • S(c);XP(C)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • S(c);OGATE,XP(C)::QAB(A),XS(c)
      • S(c);::QAR1(A)
      • P(a);::QAR1(A)
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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).