MESON Chess Problem Database

Problem Display
PID: 51010 (3nr2b/8/2pR3Q/Np2k3/6b1/6N1/3K4/8 w - - 0 1)

Pickering, GE

Dewsbury Reporter, 1909

3nr2b/8/2pR3Q/Np2k3/6b1/6N1/3K4/8

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qxf6#
    • 1...Sb7
      • 2.Sxc6#
    • 1...Sf7
      • 2.Sxc6#
    • 1...b4
      • 2.Sc4#
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qd6#
      • 1...Kxd4
        • 2.Qd6#
      • 1...Bf6
        • 2.Qe3#
      • 1...Re6
        • 2.Qf4#
      • 1...Be6
        • 2.Qf4#
      • 1...Se6
        • 2.Sxc6#
      • 1...Sb7
        • 2.Sxc6#
      • 1...Sf7
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(g);N_GUARD::QAB1(E),XB(g)
    • S(e);N_GUARD::S(C),XP(d)
    • P(b);N_GUARD::S(C)
  • Actual
    • R(D);
    • Threat
      • QAB1(E)
    • Vars
      • K(c);S_FLIGHT,XR(D)::QAR2(E)
      • B(g);SBLOCK::QAR2(E)
      • R(f);SBLOCK::QAB1(E)
      • B(a);SBLOCK::QAB1(E)
      • S(e);N_GUARD::S(C),XP(d)
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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).