MESON Chess Problem Database

Problem Display
PID: 156247 (8/3p2K1/Q5N1/3p4/1P1kP1p1/2pP4/5P2/8 w - - 0 1)

Buka, Vasily Vladimirovich

Best Problems, 2005

8/3p2K1/Q5N1/3p4/1P1kP1p1/2pP4/5P2/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...dxe4
      • 2.Qc4#
      • 2.Qd6#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qf6#
      • 1...Ke5
        • 2.Qf6#
      • 1...d6!
    • 1.Qb5?
      • threat
        • 2.Qxd5#
      • 1...dxe4
        • 2.Qc4#
        • 2.Qxd7#
      • 1...c2!
  • Keys
    • 1.Se5!
      • 1...Kxe5
        • 2.Qf6#
      • 1...dxe4
        • 2.Qd6#
      • 1...c2
        • 2.Qa1#
      • 1...g3
        • 2.Sf3#
      • 1...d6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(E)
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • P(e);
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(d)
      • Refutation
        • P(a);
  • Actual
    • S(F);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(F)::QAB1(E)
      • P(d);OGATEB,XP(D)::QAR2(E)
      • P(a);OGATEB::QAB(E)
      • P(c);N_GUARD::S(F)
      • P(e);N_GUARD::S(F)
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).