MESON Chess Problem Database

Problem Display
PID: 274810 (B1rQ4/3n4/R1n4r/p4pN1/1p6/3PP3/7k/KR5N w - - 0 1)

Hovestadt, Friedrich

Die Schwalbe, 1933

B1rQ4/3n4/R1n4r/p4pN1/1p6/3PP3/7k/KR5N

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Rxh6#
    • 1...Sce5
      • 2.Rxh6#
    • 1...Sa7
      • 2.Rxh6#
    • 1...Se7
      • 2.Rxh6#
    • 1...Scb8
      • 2.Rxh6#
    • 1...Sxd8
      • 2.Rxh6#
  • Keys
    • 1.Qxa5!
      • threat
        • 2.Qa2#
      • 1...Kg2
        • 2.Qa2#
      • 1...Sxa5
        • 2.Rxh6#
      • 1...Sd4
        • 2.Rxh6#
      • 1...Sce5
        • 2.Rxh6#
      • 1...Sa7
        • 2.Rxh6#
      • 1...Se7
        • 2.Rxh6#
      • 1...Scb8
        • 2.Rxh6#
      • 1...Sd8
        • 2.Rxh6#
      • 1...b3
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(e);OGATE::R(G),XR(f)
    • S(e);OGATE,XQ(I)::R(G),XR(f)
  • Actual
    • Q(I);XP(c)
    • Threat
      • QAB1(I)
    • Vars
      • K(a);P-FLIGHT,P_SPINS(e)::QAR(I)
      • S(e);OGATE,XQ(I)::R(G),XR(f)
      • S(e);OGATE::R(G),XR(f)
      • P(b);OGATE::QAR(I)
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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).