MESON Chess Problem Database

Problem Display
PID: 144811 (r4n2/p1p3Np/2Nk4/1P5n/2Kp1pQ1/8/4P3/8 w - - 0 1)

Maximov, Nikolai J

Deutsche Schachzeitung, 1902

r4n2/p1p3Np/2Nk4/1P5n/2Kp1pQ1/8/4P3/8

#2

6 + 9

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Re8
      • 2.Sxe8#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sg6
      • 2.Qe6#
    • 1...Sd7
      • 2.Qe6#
    • 1...f3
      • 2.Qxd4#
  • Keys
    • 1.e4!
      • threat
        • 2.e5#
      • 1...dxe4 ep
        • 2.Qd1#
      • 1...fxe4 ep
        • 2.Qxd4#
      • 1...Se6
        • 2.Qxe6#
      • 1...Re8
        • 2.Sxe8#
      • 1...Sg6
        • 2.Qe6#
      • 1...Sd7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD::S(F),XR(h)
    • S(i);N_GUARD::QAR1(C),XS(i)
    • S(i);N_GUARD::QAR1(C)
    • P(b);OGATE::QAR2(C),XP(a)
  • Actual
    • P(A);
    • Threat
      • P(A)
    • Vars
      • P(a);EP,OGATEB,XP(A)::QAR(C)
      • P(b);EP,OGATE,XP(A)::QAR2(C),XP(a)
      • S(i);N_GUARD::QAR1(C),XS(i)
      • R(h);N_GUARD::S(F),XR(h)
      • S(i);N_GUARD::QAR1(C)
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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).