MESON Chess Problem Database

Problem Display
PID: 91296 (6nQ/4B3/3P1r2/2K1kpN1/2n2r2/2PP4/BNp1pp2/3q4 w - - 0 1)

Volkmann, Albert

Die Schwalbe, 1949

6nQ/4B3/3P1r2/2K1kpN1/2n2r2/2PP4/BNp1pp2/3q4

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Sxd3#
    • 1...Sxb2
      • 2.Sf7#
    • 1...Sd2
      • 2.Sf7#
    • 1...Sa3
      • 2.Sf7#
    • 1...Se3
      • 2.Sf7#
    • 1...Sa5
      • 2.Sf7#
    • 1...Sb6
      • 2.Sf7#
    • 1...Sxd6
      • 2.Bxd6#
    • 1...Sh6
      • 2.Bxf6#
      • 2.Qxf6#
  • Keys
    • 1.Qh2!
      • threat
        • 2.Sxc4#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...Sxb2
        • 2.Sf3#
      • 1...Sxd6
        • 2.Sf3#
      • 1...Sd2
        • 2.d4#
      • 1...Sa3
        • 2.Sf3#
      • 1...Se3
        • 2.Sf3#
      • 1...Sa5
        • 2.Sf3#
      • 1...Sb6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 7
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(a);XP(D)::S(B),XQ(a)
    • S(e);XS(B)::S(F)
    • S(e);::S(F)
    • S(e);OGATE,XP(G)::B(H),XS(e)
  • Actual
    • Q(I);N_PINR(i),P_PINR(f)
    • Threat
      • S(B),XS(e)
    • Vars
      • Q(a);XP(D)::S(B),XQ(a)
      • S(e);XS(B)::S(F)
      • S(e);XP(G)::S(F)
      • S(e);S_CUTQ(a)::P(D)
      • S(e);::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).