MESON Chess Problem Database

Problem Display
PID: 119891 (4n3/2nK4/5pN1/6p1/2P1k1pp/1p2N3/b4PP1/3Q4 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Schweizerische Schachzeitung, 1906

4n3/2nK4/5pN1/6p1/2P1k1pp/1p2N3/b4PP1/3Q4

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sa6
      • 2.Qd5#
    • 1...Se6
      • 2.Qd5#
    • 1...Sa8
      • 2.Qd5#
  • Keys
    • 1.Sf5!
      • 1...Kxf5
        • 2.Qd3#
      • 1...Bb1
        • 2.Qxb1#
      • 1...Sb5
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sa6
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sa8
        • 2.Qd5#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sg7
        • 2.Sd6#
      • 1...b2
        • 2.Qc2#
      • 1...g3
        • 2.Qf3#
      • 1...h3
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD::QAB1(A)
    • S(h);N_GUARD::QAB1(A),XS(h)
  • Actual
    • S(D);
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAB(A)
      • B(a);N_GUARD::QAB(A),XB(a)
      • S(h);N_GUARD::QAB1(A)
      • S(h);N_GUARD::QAB1(A),XS(h)
      • S(i);N_GUARD::S(D),XS(i)
      • S(i);N_GUARD::S(D)
      • P(b);N_GUARD::QAB(A)
      • P(d);N_GUARD::QAB1(A)
      • P(e);N_GUARD::S(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).