MESON Chess Problem Database

Problem Display
PID: 264087 (5n2/b1qN1B2/2r3pK/1Rp1pkP1/7R/1pN3p1/2r3P1/1Q3n2 w - - 0 1)

Neumann, Itzhak

Tijdschrift vd KNSB, 1937

5n2/b1qN1B2/2r3pK/1Rp1pkP1/7R/1pN3p1/2r3P1/1Q3n2

#2

9 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Bxg6#
  • Tries
    • 1.Qxc2+?
      • 1...e4
        • 2.Qxe4#
      • 1...bxc2!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qxf1#
      • 1...Sd2
        • 2.Sxg3#
      • 1...Sh2
        • 2.Sxg3#
      • 1...Se3
        • 2.Sxg3#
      • 1...Se6
        • 2.Bxg6#
      • 1...c4
        • 2.Rf4#
      • 1...e4
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(l);N_GUARD,SBLOCK,S_CUTR(h)::B(I),XP(i)
  • Tries
    • Try
      • Q(A);CHECK,XR(b)
      • Vars
        • P(f);P_SPINP(f)::QAB1(A),XP(f)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • S(C);
    • Threat
      • QAR(A),XS(a)
    • Vars
      • S(a);N_GUARD::S(C),XP(d)
      • S(l);N_GUARD,SBLOCK,S_CUTR(h)::B(I),XP(i)
      • P(e);P_SPINP(f)::R1(D)
      • P(f);N_GUARD,N_SPINR(b),P_SPINP(e)::S(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).