MESON Chess Problem Database

Problem Display
PID: 177721 (8/1p1P4/pP6/2p5/kp6/pN6/2P1Q3/3K4 w - - 0 1)

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

Rigasche Rundschau, 1907

8/1p1P4/pP6/2p5/kp6/pN6/2P1Q3/3K4

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...a5
      • 2.Sxc5#
  • Tries
    • 1.Qc4?
      • 1...a5
        • 2.Sxc5#
      • 1...a2!
  • Keys
    • 1.c4!
      • 1...Kxb3
        • 2.Qc2#
      • 1...bxc4 ep
        • 2.Qc4#
      • 1...a2
        • 2.Qxa2#
      • 1...a5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(e);SBLOCK::S(D),XP(d)
  • Tries
    • Try
      • Q(C);P_PINP(c)
      • Vars
        • P(e);SBLOCK::S(D),XP(d)
      • Refutation
        • P(a);
  • Actual
    • P(B);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(D)::QAB1(C)
      • P(c);EP,OGATE,XP(B)::QAR2(C)
      • P(a);OGATEB::QAR2(C),XP(a)
      • P(e);SBLOCK::S(D),XP(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).