MESON Chess Problem Database

Problem Display
PID: 261217 (8/2b1q3/2BP4/3R4/4k2N/3p2pP/6N1/4K3 w - - 0 1)

Schmid, Otto

Neue Zurcher Zeitung, 1897

8/2b1q3/2BP4/3R4/4k2N/3p2pP/6N1/4K3

#2

7 + 5

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sd2#
        • 2.Ra5#
        • 2.Rb5#
        • 2.Rc5#
        • 2.Re5#
        • 2.Rg5#
        • 2.Rh5#
      • 1...Kxf3+
        • 2.Re5#
      • 1...Ba5+
        • 2.Rxa5#
      • 1...d2+
        • 2.Sxd2#
      • 1...Qxd6
        • 2.Sd2#
        • 2.Sg5#
        • 2.Re5#
      • 1...Qe5
        • 2.Rxe5#
      • 1...Qg5
        • 2.Sxg5#
        • 2.Re5#
        • 2.Rxg5#
      • 1...Qe6
        • 2.Sd2#
        • 2.Sg5#
        • 2.Re5#
      • 1...Qd7
        • 2.Sd2#
        • 2.Sg5#
        • 2.Re5#
      • 1...Qf7
        • 2.Sd2#
        • 2.Sg5#
        • 2.Re5#
      • 1...Qe8
        • 2.Sd2#
        • 2.Sg5#
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(D);
    • Threat
      • DUALS(7)
    • Vars
      • K(c);CHECK,S_FLIGHT,XS(D)::B(F)+R(E)
      • B(d);CHECK::B(F)+R(E),XB(d)
      • P(a);CHECK::S(D),XP(a)
      • Q(e);::B(F)+R(E),DCHECK,XQ(e)
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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).