MESON Chess Problem Database

Problem Display
PID: 266849 (4Q2K/8/8/4B1k1/4P3/8/6P1/8 w - - 0 1)

Koshel, Mikhail Igorevich

Kudesnik, 2022

4Q2K/8/8/4B1k1/4P3/8/6P1/8

#2

5 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Bf4#
  • Tries
    • 1.Qg6+?
      • 1...Kh4
        • 2.Bg3#
        • 2.Bf6#
      • 1...Kxg6!
    • 1.g3?
      • 1...Kh6
        • 2.Bf4#
      • 1...Kg4!
    • 1.g4?
      • threat
        • 2.Qh5#
      • 1...Kh4
        • 2.Qh5#
      • 1...Kh6
        • 2.Bf4#
        • 2.Qh5#
      • 1...Kxg4!
  • Keys
    • 1.Bg3!
      • 1...Kg4
        • 2.Qg6#
      • 1...Kf6
        • 2.Bh4#
      • 1...Kh6
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::B(C)
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • P(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(A);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
  • Actual
    • B(C);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR2(D)
      • K(a);N_GUARD,S_FLIGHT::B(C)
HTML5 logo

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).