MESON Chess Problem Database

Problem Display
PID: 129747 (6B1/8/K5Pp/1N4PQ/2P1k3/3N4/3bpP2/8 w - - 0 1)

Vrana, Konstantin

Besedy lidu, 1901

6B1/8/K5Pp/1N4PQ/2P1k3/3N4/3bpP2/8

#2

9 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Sd6#
  • Tries
    • 1.Bd5+?
      • 1...Kf5
        • 2.Sd4#
        • 2.Sd6#
      • 1...Kxd3!
    • 1.Qg4+?
      • 1...Kxd3
        • 2.Qf5#
      • 1...Bf4!
    • 1.Qh1+?
      • 1...Kxd3
        • 2.Qb1#
      • 1...Kf5!
    • 1.gxh6?
      • threat
        • 2.Qd5#
      • 1...Kxd3
        • 2.Qf5#
      • 1...Bg5!
  • Keys
    • 1.g7!
      • threat
        • 2.Bh7#
      • 1...Kxd3
        • 2.Qg6#
      • 1...Kf5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(D)
  • Tries
    • Try
      • B(I);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(B)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(B)::QAB(F)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(B)::QAB(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(E);XP(d)
      • Threat
        • QAB1(F)
      • Vars
        • K(c);S_FLIGHT,XS(B)::QAB(F)
      • Refutation
        • B(a);
  • Actual
    • P(H);
    • Threat
      • B(I)
    • Vars
      • K(c);S_FLIGHT,XS(B)::QAB(F)
      • K(c);S_FLIGHT::S(D)
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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).