MESON Chess Problem Database

Problem Display
PID: 206280 (1B6/2PP4/2P5/3kn1nR/1P3Q2/R3P2B/2K5/b7 w - - 0 1)

Hannemann, Knud Harald

Nationaltidende, 1925

1B6/2PP4/2P5/3kn1nR/1P3Q2/R3P2B/2K5/b7

#2

11 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.d8Q+?
      • 1...Sd7
        • 2.Qxd7#
      • 1...Kxc6!
  • Keys
    • 1.c8Q!
      • threat
        • 2.Ra5#
      • 1...Sxc6
        • 2.Qg8#
      • 1...Sxd7
        • 2.Qxd7#
      • 1...Sxh3
        • 2.d8Q#
        • 2.d8R#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Sg4
        • 2.d8Q#
        • 2.d8R#
      • 1...Se4
        • 2.Qf7#
      • 1...Sd3
        • 2.d8Q#
        • 2.d8R#
      • 1...Sc4
        • 2.Qf3#
      • 1...Se6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(J);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(d)::QAR2(J),XS(c)
      • Refutation
        • K(b);S_FLIGHT,XP(H)
  • Actual
    • P(I);
    • Threat
      • R(B)
    • Vars
      • S(c);N_GUARD,P_SPINS(d),SBLOCK,XP(H)::QAB(I)
      • S(c);OGATE,P_SPINS(d),XP(J)::QAR2(I),XS(c)
      • S(d);P_SPINS(c),XB(D)::P=Q
      • B(a);N_GUARD::QAR1(F),XB(a)
      • S(c);N_GUARD,P_SPINS(d)::P=Q
      • S(d);N_GUARD,P_SPINS(c),SBLOCK::QAB(F)
      • S(c);N_GUARD,P_SPINS(d),SBLOCK::QAB(F)
      • S(d);N_GUARD,P_SPINS(c),SBLOCK::B(D)
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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).