MESON Chess Problem Database

Problem Display
PID: 65999 (8/B4rN1/1p1p1p2/4Pp2/1KNk1r2/3P1p2/b6Q/1B1R4 w - - 0 1)

Volkmann, Albert

Schach, 1952

8/B4rN1/1p1p1p2/4Pp2/1KNk1r2/3P1p2/b6Q/1B1R4

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.dxe4#
    • 1...d5
      • 2.Se6#
      • 2.Bxb6#
      • 2.Qxf4#
      • 2.Qb2#
      • 2.Qf2#
  • Keys
    • 1.Sxb6!
      • threat
        • 2.Qxf4#
      • 1...Ke3+
        • 2.Sc4#
      • 1...Kxe5+
        • 2.d4#
      • 1...dxe5
        • 2.Qf2#
      • 1...fxe5
        • 2.Qf2#
      • 1...Re4
        • 2.Sxf5#
      • 1...Rg4
        • 2.Sxf5#
      • 1...Rh4
        • 2.Sxf5#
      • 1...Bd5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE::R(B)+P(D),XR(d)
  • Actual
    • S(F);XP(f)
    • Threat
      • QAR2(C),XR(d)
    • Vars
      • K(c);CHECK,S_FLIGHT::B(H)+S(F),DCHECK
      • K(c);CHECK,OGATE,P_SPINR(d),S_FLIGHT,XP(G)::P(D)
      • P(g);SBLOCK,XP(G)::QAB(C)
      • P(h);SBLOCK,XP(G)::QAB(C)
      • R(d);N_GUARD::S(I),XP(e)
      • B(a);SBLOCK::B(H)+S(F)
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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).