MESON Chess Problem Database

Problem Display
PID: 90117 (8/B2b4/2P5/1Nn1P1RN/2B1kPp1/q1p3r1/3PnbPp/5Q1K w - - 0 1)

Strerath, Otto

Die Schwalbe, 1948

8/B2b4/2P5/1Nn1P1RN/2B1kPp1/q1p3r1/3PnbPp/5Q1K

#2

12 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg2
      • 2.Qxg2#
    • 1...Be1
      • 2.Sf6#
    • 1...Bg1
      • 2.Sf6#
    • 1...Be3
      • 2.Sf6#
    • 1...Bd4
      • 2.Sd6#
      • 2.Sf6#
    • 1...Sd4
      • 2.Sd6#
    • 1...Sxf4
      • 2.Sf6#
  • Keys
    • 1.e6!
      • threat
        • 2.Re5#
      • 1...Rxg2
        • 2.Qxg2#
      • 1...Sxf4
        • 2.Sf6#
      • 1...Bd4
        • 2.Sd6#
      • 1...Sd3
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(f);OGATE,XP(D)::QAB(A),XR(f)
    • B(b);::S(J)
    • S(a);SBLOCK::S(G)
    • S(a);SBLOCK,XP(F)::S(J)
  • Actual
    • P(H);
    • Threat
      • R1(I)
    • Vars
      • R(f);OGATE,XP(D)::QAB(A),XR(f)
      • S(a);SBLOCK,XP(F)::S(J)
      • B(b);SBLOCK::S(G)
      • S(i);SBLOCK::B(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).