MESON Chess Problem Database

Problem Display
PID: 280238 (3K4/8/8/3k4/1Q6/4P3/8/3B4 w - - 0 1)

Koshel, Mikhail Igorevich

Shakhmatnaya kompozitsiya, 2024

3K4/8/8/3k4/1Q6/4P3/8/3B4

#2

4 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Bf3#
  • Tries
    • 1.Bb3+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc6!
    • 1.e4+?
      • 1...Kc6
        • 2.Ba4#
      • 1...Ke6
        • 2.Qe7#
      • 1...Ke5!
  • Keys
    • 1.Bg4!
      • 1...Ke5
        • 2.Qd4#
      • 1...Kc6
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::B(A)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(A)
        • K(a);N_GUARD,S_FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAB1(C)
      • K(a);N_GUARD,S_FLIGHT::B(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).