MESON Chess Problem Database

Problem Display
PID: 265626 (8/8/7K/8/2BPpNk1/8/7Q/8 w - - 0 1)

Akimov, Nikolai Nikolaevich

Candela MT (Problemas), 2018

8/8/7K/8/2BPpNk1/8/7Q/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • 1...Kf3
        • 2.Be2#
      • 1...Kf5
        • 2.Qh3#
      • 1...e3!
    • 1.Sh5?
      • 1...Kf3
        • 2.Qg3#
        • 2.Qe2#
      • 1...Kf5
        • 2.Qf4#
        • 2.Qh3#
      • 1...e3!
    • 1.Qg3+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Kxg3!
    • 1.Qg2+?
      • 1...Kh4
        • 2.Sg6#
        • 2.Qh3#
        • 2.Qg5#
      • 1...Kf5
        • 2.Qg5#
      • 1...Kxf4!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qh5#
      • 1...Kf3
        • 2.Qg3#
      • 1...Kf5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(B)
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • P(a);
    • Try
      • S(D);
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);N_GUARD,S_FLIGHT::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).