MESON Chess Problem Database

Problem Display
PID: 93240 (6nQ/5pB1/3p3b/1K1k1B2/NPn2P2/r7/8/8 w - - 0 1)

Schmidt, Leif Carl

Skakbladet, 1997

6nQ/5pB1/3p3b/1K1k1B2/NPn2P2/r7/8/8

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sc3#
    • 1...Ra2
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Sb2
      • 2.Sb6#
    • 1...Sd2
      • 2.Sb6#
    • 1...Se3
      • 2.Sb6#
    • 1...Sa5
      • 2.Sb6#
    • 1...Sb6
      • 2.Sxb6#
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qd4#
      • 1...Rxc3
        • 2.Sxc3#
      • 1...Bg7
        • 2.Qh1#
      • 1...Se5
        • 2.Sb6#
      • 1...Sf6
        • 2.Qa8#
      • 1...f6
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::S(A)
    • R(a);N_GUARD::S(A),XR(a)
    • S(b);N_GUARD::S(A)
    • S(b);N_GUARD::S(A),XS(b)
  • Actual
    • B(F);
    • Threat
      • QAR1(G)
    • Vars
      • R(a);XB(F)::S(A),XR(a)
      • B(e);OGATE::QAB(G)
      • S(b);N_GUARD::S(A)
      • S(g);OGATE::QAB(G)
      • P(f);OGATEB::QAB(G),XS(g)
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).