MESON Chess Problem Database

Problem Display
PID: 57361 (B7/6N1/6p1/2P1k1Pb/4rnQ1/2P1N1n1/3P3B/3K1R2 w - - 0 1)

Niemeijer, Meindert

3rd Comm., Brisbane Courier, 1920

B7/6N1/6p1/2P1k1Pb/4rnQ1/2P1N1n1/3P3B/3K1R2

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.d4#
    • 1...Rc4
      • 2.Sxc4#
    • 1...Bxg4+
      • 2.Sxg4#
    • 1...Sge2
      • 2.Qe6#
    • 1...Sfe2
      • 2.Qe6#
      • 2.Qxe4#
  • Keys
    • 1.Re1!
      • threat
        • 2.Sc4#
      • 1...Bxg4+
        • 2.Sxg4#
      • 1...Rxe3
        • 2.d4#
      • 1...Rc4
        • 2.Sxc4#
      • 1...Sge2
        • 2.Qe6#
      • 1...Sfe2
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,XS(F)::P(C)
    • R(b);N_GUARD::S(F),XR(b)
    • B(e);CHECK,XQ(G)::S(F),XB(e)
    • S(a);N_PINQ(G),P_SPINS(c)::QAR1(G)
  • Actual
    • R(B);
    • Threat
      • S(F)
    • Vars
      • B(e);CHECK,XQ(G)::S(F),XB(e)
      • R(b);N_GUARD,P_SPINR(b),XS(F)::P(C)
      • R(b);::R(B)+S(F),DCHECK,XR(b)
      • S(a);N_PINQ(G),P_SPINS(c)::QAR1(G)
      • S(c);N_PINQ(G),P_SPINS(a)::QAR1(G),XR(b)
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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).