MESON Chess Problem Database

Problem Display
PID: 109816 (1n4K1/3Np2p/p1p1k3/r1P3n1/Q2Rb3/8/4N3/8 w - - 0 1)

Anonymous

Checkmate, 1903

1n4K1/3Np2p/p1p1k3/r1P3n1/Q2Rb3/8/4N3/8

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Sf4#
      • 2.Qb3#
      • 2.Qc4#
  • Keys
    • 1.Rd5!
      • threat
        • 2.Sf4#
      • 1...Kxd5
        • 2.Sf4#
        • 2.Qb3#
      • 1...Bxd5
        • 2.Qg4#
      • 1...Sxd7
        • 2.Qxc6#
      • 1...cxd5
        • 2.Sd4#
      • 1...Sh3
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(C);
    • Threat
      • S(A)
    • Vars
      • B(a);OGATE,SBLOCK,XR(C)::QAB(B)
      • S(i);N_GUARD,XS(E)::QAR2(B),XP(e)
      • P(e);SBLOCK,XR(C)::S(A)
      • S(c);N_GUARD::QAR2(B),XB(a)
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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).