MESON Chess Problem Database

Problem Display
PID: 35498 (3q4/3n3b/4rNn1/2p4r/4p3/QPk1P2p/2P5/2K5 w - - 0 1)

Selb, Hans

Hamburger Problem-Nachrichten, 1949

3q4/3n3b/4rNn1/2p4r/4p3/QPk1P2p/2P5/2K5

#2

6 + 10

3150 Asthetik und Ornamentik im Schachproblem 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Qxa5#
    • 1...Qxf6
      • 2.Qa5#
    • 1...Qe7
      • 2.Qa5#
    • 1...Qc8
      • 2.Qa5#
    • 1...Qe8
      • 2.Qa5#
    • 1...Qf8
      • 2.Qa5#
    • 1...Qg8
      • 2.Qa5#
    • 1...Qh8
      • 2.Qa5#
    • 1...Rh4
      • 2.Sd5#
    • 1...Rd5
      • 2.Sxd5#
    • 1...Rh6
      • 2.Sd5#
    • 1...Ra6
      • 2.Sxe4#
    • 1...Rb6
      • 2.Sxe4#
    • 1...Rc6
      • 2.Sxe4#
    • 1...Rd6
      • 2.Sxe4#
    • 1...Sge5
      • 2.Sd5#
    • 1...Sde5
      • 2.Sxe4#
    • 1...Sb6
      • 2.Qa5#
    • 1...c4
      • 2.b4#
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qc4#
      • 1...Sge5
        • 2.Sd5#
      • 1...Sde5
        • 2.Sxe4#
      • 1...Sb6
        • 2.Qa5#
      • 1...c4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 15
  • Sets
    • Q(j);N_GUARD::QAB(C),XQ(j)
    • Q(j);N_GUARD,XS(F)::QAB(C)
    • Q(j);N_GUARD::QAB(C)
    • R(e);N_GUARD::S(F)
    • R(e);N_GUARD::S(F),XR(e)
    • R(f);N_GUARD::S(F),XP(c)
    • S(g);S_CUTR(e)::S(F)
    • S(h);S_CUTR(f)::S(F),XP(c)
    • S(h);S_CUTQ(j)::QAB(C)
    • P(d);SBLOCK::QAR(C)+P(D)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • S(g);S_CUTR(e)::S(F)
      • S(h);S_CUTR(f)::S(F),XP(c)
      • S(h);S_CUTQ(j)::QAB(C)
      • P(d);::QAR1(C),XP(d)
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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).