MESON Chess Problem Database

Problem Display
PID: 124407 (1B1RR2Q/1r4r1/1p1P4/3kNP2/N5p1/1P2K3/8/3b4 w - - 0 1)

Sommer, Bruno Oswald

Source?, 0000

1B1RR2Q/1r4r1/1p1P4/3kNP2/N5p1/1P2K3/8/3b4

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rbe7
      • 2.dxe7#
    • 1...Rc7
      • 2.dxc7#
    • 1...Bxb3
      • 2.Qh1#
  • Keys
    • 1.b4!
      • threat
        • 2.Sc3#
      • 1...Bxa4
        • 2.Qh1#
      • 1...Rbe7
        • 2.dxe7#
      • 1...Rbc7
        • 2.Sxb6#
      • 1...Rgc7
        • 2.dxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(e);OGATE,P_PINS(D)::R(H)+P(F),XR(e)
    • R(f);OGATE::R(H)+P(F),XR(f)
    • B(a);N_GUARD,XP(A)::QAB(J)
  • Actual
    • P(A);
    • Threat
      • S(C)
    • Vars
      • B(a);N_GUARD,XS(C)::QAB(J)
      • R(e);OGATE,P_PINS(D)::R(H)+P(F),XR(e)
      • R(e);N_GUARD::S(C),XP(d)
      • R(f);OGATE::R(H)+P(F),XR(f)
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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).