MESON Chess Problem Database

Problem Display
PID: 120080 (5Q2/8/Rr6/8/5b2/2B2K2/qr1N4/k7 w - - 0 1)

Kokes, Alois

Ruch, 1947

5Q2/8/Rr6/8/5b2/2B2K2/qr1N4/k7

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Rxa3#
      • 2.Qxa3#
    • 1...Qa4
      • 2.Rxa4#
    • 1...Qa5
      • 2.Rxa5#
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxa2#
      • 1...Qxa3
        • 2.Rxa3#
      • 1...Rxa6
        • 2.Bxb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(b);OGATEB::R(D),XQ(b)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XQ(b)
    • Vars
      • Q(b);OGATE,P_PINB(B),XQ(E)::R(D),XQ(b)
      • R(e);N_GUARD,XR(D)::B(B),XR(c)
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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).