MESON Chess Problem Database

Problem Display
PID: 204597 (8/3Q4/3p4/b2k1p2/1r1p1n2/Br6/5N1p/5B1K w - - 0 1)

Bar, Wolfgang

Augsburger Allgemeine Zeitung, 2008

8/3Q4/3p4/b2k1p2/1r1p1n2/Br6/5N1p/5B1K

#2

5 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb5#
    • 1...Ra4
      • 2.Qxd6#
    • 1...Rc4
      • 2.Qxd6#
    • 1...Rb5
      • 2.Qxd6#
    • 1...Rb7
      • 2.Qxd6#
    • 1...Rb8
      • 2.Qxd6#
  • Keys
    • 1.Bc4+!
      • 1...Kxc4
        • 2.Qc6#
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke5
        • 2.Qg7#
      • 1...Rxc4
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • K(g);N_SPINP(i),P-FLIGHT,P_SPINR(c)::QAR1(E)
    • R(c);::QAR1(E),XP(i)
  • Actual
    • B(A);CHECK
    • Vars
      • K(g);N_SPINP(i),S_FLIGHT,XB(A)::QAR2(E)
      • K(g);N_SPINP(i),P-FLIGHT,P_SPINR(c)::QAR1(E)
      • K(g);N_SPINP(i),P-FLIGHT::QAB(E)
      • R(c);SBLOCK,XB(A)::QAR1(E),XP(i)
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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).