MESON Chess Problem Database

Problem Display
PID: 109731 (1K2b3/8/4Q2p/6Pk/4P3/5N2/6Nn/2b5 w - - 0 1)

Wrobel, Marian

Bergen Chess Club, 1952

1K2b3/8/4Q2p/6Pk/4P3/5N2/6Nn/2b5

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Sf4#
    • 1...Ba3
      • 2.Sf4#
    • 1...Bf4+
      • 2.Sxf4#
    • 1...Bg6
      • 2.Qh3#
    • 1...Sg4
      • 2.Qxe8#
  • Keys
    • 1.Se5!
      • threat
        • 2.Qxh6#
      • 1...Kxg5
        • 2.Qf5#
      • 1...Bxg5
        • 2.Qxe8#
      • 1...hxg5
        • 2.Qh3#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Sg4
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::S(A)
    • B(a);CHECK,N_GUARD::S(A),XB(a)
    • B(e);SBLOCK::QAR2(E)
    • S(b);SBLOCK::QAB(E),XB(e)
  • Actual
    • S(B);
    • Threat
      • QAR1(E),XP(d)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(D)::QAR1(E)
      • B(a);SBLOCK,XP(D)::QAB(E),XB(e)
      • P(d);SBLOCK,XP(D)::QAR2(E)
      • B(e);N_GUARD::QAB1(E),XB(e)
      • S(b);N_GUARD::QAB1(E),XS(b)
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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).