MESON Chess Problem Database

Problem Display
PID: 276044 (4b2b/KNQp4/1P1p2nr/pkNP4/6R1/5nq1/2Rp4/2B5 w - - 0 1)

Knuppert, Hugo

4th Prize, Schweizerische Schachzeitung, 1959

4b2b/KNQp4/1P1p2nr/pkNP4/6R1/5nq1/2Rp4/2B5

#2

9 + 11

6490 yacpdb 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sxd6#
    • 1...Qf2
      • 2.Sxd6#
    • 1...Qh4
      • 2.Sxd6#
    • 1...Qg1
      • 2.Sxd6#
    • 1...Qg2
      • 2.Sxd6#
    • 1...Qh3
      • 2.Sxd6#
    • 1...Bf7
      • 2.Qxd7#
    • 1...Bb2
      • 2.Rxb2#
    • 1...Sfe5
      • 2.Sxd6#
    • 1...Sge5
      • 2.Rb2#
    • 1...dxc5
      • 2.Rxc5#
      • 2.Qxc5#
  • Keys
    • 1.Se4!
      • threat
        • 2.Qc4#
      • 1...Ka4
        • 2.Qc4#
      • 1...Kb4
        • 2.Qc4#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Sfe5
        • 2.Sexd6#
      • 1...Sge5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(c);N_GUARD::S(H),XP(f)
    • B(j);N_GUARD::QAB(I),XP(i)
    • B(k);N_GUARD::R(B),XB(k)
    • S(b);S_CUTQ(c)::S(H),XP(f)
    • S(g);S_CUTB(k)::R(B)
  • Actual
    • S(D);
    • Threat
      • QAB1(I)
    • Vars
      • K(e);S_FLIGHT::QAR2(I)
      • K(e);P-FLIGHT::QAR1(I)
      • B(k);N_GUARD::S(D),XB(k)
      • S(b);S_CUTQ(c)::S(D),XP(f)
      • S(g);S_CUTB(k)::S(D)
HTML5 logo

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).