Problem Display
PID: 218798 (K3k2n/4P1p1/p3P3/p1p2Nq1/2B4Q/8/1b4p1/r6r w - - 0 1)

Schneider, Matthias

Deutsche Schachzeitung, 1944

K3k2n/4P1p1/p3P3/p1p2Nq1/2B4Q/8/1b4p1/r6r

#2

6 + 11


15148 Sadier Collection 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sd6#
    • 1...Qe3
      • 2.Sd6#
    • 1...Qh6
      • 2.Sd6#
    • 1...Qxe7
      • 2.Qxe7#
    • 1...Qg4
      • 2.Sd6#
    • 1...Qh5
      • 2.Sd6#
    • 1...Qg6
      • 2.Sd6#
    • 1...Rb1
      • 2.Qxh8#
    • 1...Rc1
      • 2.Qxh8#
    • 1...Rd1
      • 2.Qxh8#
    • 1...Re1
      • 2.Qxh8#
    • 1...Rf1
      • 2.Qxh8#
    • 1...Rg1
      • 2.Qxh8#
  • Keys
    • 1.Bd5!
      • threat
        • 2.Bc6#
      • 1...Qxe7
        • 2.Qxe7#
      • 1...Qd2
        • 2.Sd6#
      • 1...Rad1
        • 2.Qa4#
      • 1...Rhd1
        • 2.Qxh8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 11
  • Sets
    • Q(g);::S(C)
    • Q(g);OGATE,XP(E)::QAR1(B),XQ(g)
    • R(b);N_GUARD::QAR(B),XS(k)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • Q(g);OGATE,XP(E)::QAR1(B),XQ(g)
      • Q(g);::S(C)
      • R(a);N_GUARD::QAB(B)
      • R(b);N_GUARD::QAR(B),XS(k)


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).