MESON Chess Problem Database

Problem Display
PID: 186070 (5b2/5b2/2p2Q2/1Npp1nR1/3p3p/7P/k4P2/BRK5 w - - 0 1)

Howard, David M

Problem Observer, 2017

5b2/5b2/2p2Q2/1Npp1nR1/3p3p/7P/k4P2/BRK5

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qb2#
    • 1...cxb5
      • 2.Qa6#
  • Keys
    • 1.Rg2!
      • threat
        • 2.f3#
        • 2.f4#
      • 1...Bh6+
        • 2.f4#
      • 1...cxb5
        • 2.Qa6#
      • 1...Bh5
        • 2.f3#
      • 1...Se3
        • 2.fxe3#
      • 1...Sg3
        • 2.fxg3#
      • 1...d3
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAR1(H)
    • P(g);OGATE,XS(F)::QAR(H)
  • Actual
    • R(G);
    • Threat
      • DUALS(2)
    • Vars
      • B(i);CHECK::R(G)+P(D)
      • P(g);OGATE,XS(F)::QAR(H)
      • B(h);::R(G)+P(D)
      • S(f);OGATE::R(G)+P(D),XS(f)
      • P(b);OGATE::QAR1(H)
HTML5 logo

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).