MESON Chess Problem Database

Problem Display
PID: 246404 (8/2NrNB2/3p4/2PrP3/2PkP3/3p4/QK1B4/2R1R3 w - - 0 1)

Hjelle, David

Sjakk-Nytt, 1948

8/2NrNB2/3p4/2PrP3/2PkP3/3p4/QK1B4/2R1R3

#2

12 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qa7#
    • 1...Rxc5
      • 2.Bc3#
    • 1...dxc5
      • 2.Sc6#
      • 2.Bc3#
    • 1...dxe5
      • 2.Se6#
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxd5#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Kxe5
        • 2.Qh8#
      • 1...Rxc5
        • 2.Bc3#
      • 1...Rxe5
        • 2.Be3#
      • 1...dxc5
        • 2.Sc6#
      • 1...dxe5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XP(H)::QAB(C)
    • R(c);SBLOCK,XP(H)::B(E)
    • P(d);SBLOCK,XP(I)::S(J)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XR(c)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XP(H)::QAB(C)
      • K(b);OGATEB,S_FLIGHT,XP(I)::QAB(C)
      • R(c);SBLOCK,XP(H)::B(E)
      • R(c);SBLOCK,XP(I)::B(E)
      • P(d);SBLOCK,XP(H)::S(K)
      • P(d);SBLOCK,XP(I)::S(J)
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).