MESON Chess Problem Database

Problem Display
PID: 242989 (3K4/4N3/Q3P3/2P1k2n/4pb1P/1Bp1B3/8/8 w - - 0 1)

Westberg, CE

Tidskrift for Schack, 1915

3K4/4N3/Q3P3/2P1k2n/4pb1P/1Bp1B3/8/8

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qd6#
    • 1...c2
      • 2.Qa1#
  • Keys
    • 1.Qf1!
      • 1...Kf6
        • 2.Bd4#
      • 1...Bxe3
        • 2.Sc6#
      • 1...Bh2
        • 2.Sc6#
        • 2.Sg6#
        • 2.Qf5#
      • 1...Bg3
        • 2.Sc6#
        • 2.Sg6#
        • 2.Qf5#
      • 1...Bg5
        • 2.Qf5#
      • 1...Bh6
        • 2.Sc6#
        • 2.Sg6#
        • 2.Qf5#
      • 1...Sg3
        • 2.Qxf4#
      • 1...Sf6
        • 2.Qxf4#
      • 1...Sg7
        • 2.Qxf4#
      • 1...c2
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK::QAB1(E)
    • P(a);OGATEB::QAB(E)
  • Actual
    • Q(E);
    • Vars
      • K(d);P_SPINB(c),S_FLIGHT::B(B)
      • B(c);XB(B)::S(G)
      • B(c);OGATE,P_PINS(G)::QAR1(E)
      • S(e);N_GUARD::QAB1(E),XB(c)
      • P(a);OGATEB::QAB(E)
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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).