MESON Chess Problem Database

Problem Display
PID: 120023 (2N1n3/1Q6/1np1PR2/bN1k4/1R1P4/p6q/2PP4/2Kb4 w - - 0 1)

Nimmermehr, ?

Die Schachwelt (Berlin), 1911

2N1n3/1Q6/1np1PR2/bN1k4/1R1P4/p6q/2PP4/2Kb4

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Sc3#
    • 1...Qg2
      • 2.Sc3#
    • 1...Qg4
      • 2.Sc3#
    • 1...Qf5
      • 2.Sc3#
    • 1...Qxe6
      • 2.Sc3#
    • 1...Qh1
      • 2.Sc3#
    • 1...Qh2
      • 2.Sc3#
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qh4
      • 2.Sc3#
    • 1...Qh5
      • 2.Sc3#
    • 1...Qh6
      • 2.Sc3#
    • 1...Qh7
      • 2.Sc3#
    • 1...Qh8
      • 2.Sc3#
    • 1...Bf3
      • 2.Sc3#
  • Tries
    • 1.Sxb6+?
      • 1...Ke4
        • 2.Qxc6#
      • 1...Bxb6!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Se7#
      • 1...Qxe6
        • 2.Sc3#
      • 1...Qxh7
        • 2.Sc3#
      • 1...Bxb4
        • 2.Sxb6#
      • 1...Sxc8
        • 2.c4#
      • 1...Sxf6
        • 2.Sc7#
      • 1...cxb5
        • 2.Qb7#
      • 1...Qf5
        • 2.Sc3#
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 12
  • Sets
    • Q(c);N_GUARD::S(F)
    • Q(c);N_GUARD,XP(G)::S(F)
    • Q(c);N_GUARD,P_PINP(B)::S(F),XQ(c)
    • Q(c);N_GUARD,P_PINP(C)::S(F)
    • B(a);S_CUTQ(c)::S(F)
  • Tries
    • Try
      • S(J);CHECK,XS(f)
      • Vars
        • K(e);S_FLIGHT::QAB(I),XP(g)
      • Refutation
        • B(d);XS(J)
  • Actual
    • Q(I);N_PINP(g)
    • Threat
      • S(J)
    • Vars
      • Q(c);N_GUARD,XP(G)::S(F)
      • Q(c);N_GUARD,XQ(I)::S(F)
      • B(d);N_GUARD,XR(D)::S(J),XS(f)
      • S(f);N_GUARD,XS(J)::P(B)
      • S(h);N_GUARD,XR(H)::S(F)
      • P(g);OGATEB,XS(F)::QAB(I)
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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).