MESON Chess Problem Database

Problem Display
PID: 198410 (6B1/1b1p4/5p2/2b2k1K/2N1Np2/2P5/Q5P1/8 w - - 0 1)

Moller, Ferdinand Friedrich

Die Wochenschau, 1920

6B1/1b1p4/5p2/2b2k1K/2N1Np2/2P5/Q5P1/8

#2

7 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qb1#
      • 2.Qc2#
    • 1...Bg1
      • 2.Sed6#
    • 1...Bf2
      • 2.Sed6#
    • 1...Be3
      • 2.Sed6#
    • 1...Bd4
      • 2.Sed6#
    • 1...Bb6
      • 2.Sed6#
    • 1...Bd6
      • 2.Sexd6#
    • 1...Ba7
      • 2.Sed6#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Sg3#
      • 1...Kxe4
        • 2.Qc2#
      • 1...Bxf2
        • 2.Sed6#
      • 1...Bxe4
        • 2.g4#
      • 1...f3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(b);N_GUARD::S(E)
    • B(b);N_GUARD::S(E),XB(b)
  • Actual
    • Q(A);P_PINP(a)
    • Threat
      • S(E)
    • Vars
      • K(c);N_SPINP(a),OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • B(b);N_GUARD,N_SPINP(a),XQ(A)::S(E)
      • B(e);SBLOCK,XS(E)::P(B)
      • P(a);OGATEB::QAR2(A),XP(a)
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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).