MESON Chess Problem Database

Problem Display
PID: 265008 (8/8/8/3K1B2/3Q4/3p4/3k4/3N4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2022

8/8/8/3K1B2/3Q4/3p4/3k4/3N4

#2

4 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3+?
      • 1...Kxd1
        • 2.Bg4#
      • 1...Ke2!
    • 1.Qxd3+?
      • 1...Kc1
        • 2.Qc2#
      • 1...Ke1!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Qc3#
      • 1...Kc1
        • 2.Qb2#
      • 1...Ke1
        • 2.Qf2#
      • 1...Kc2
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK,N_PINP(b)
      • Vars
        • K(a);P-FLIGHT,XS(A)::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);CHECK,XP(b)
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);N_GUARD,N_SPINP(b),S_FLIGHT::QAB1(B)
      • K(a);N_GUARD,N_SPINP(b),P-FLIGHT::QAR1(B)
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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).