MESON Chess Problem Database

Problem Display
PID: 93901 (b7/4Rp1K/1QN4p/2q5/1b2P3/1Pp1k3/2R4B/4N3 w - - 0 1)

von Wardener, Friedrich Freiherr

Ceske listy sachove, 1900

b7/4Rp1K/1QN4p/2q5/1b2P3/1Pp1k3/2R4B/4N3

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qxd4#
    • 1...Ba5
      • 2.Qxc5#
    • 1...f5
      • 2.exf5#
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sf5#
      • 1...Qf5+
        • 2.Sxf5#
      • 1...Kxd4
        • 2.Bg1#
      • 1...Qxd4
        • 2.Qxh6#
      • 1...Qxe7
        • 2.Re2#
      • 1...Qe5
        • 2.Re2#
      • 1...f5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(d);OGATE::QAB1(F),XQ(d)
    • B(c);N_GUARD::QAB(F),XQ(d)
    • P(f);OGATE::R(H)+P(E),XP(f)
  • Actual
    • S(G);N_PINQ(d)
    • Threat
      • S(G)
    • Vars
      • Q(d);CHECK::QAB(F)+S(G),DCHECK,XQ(d)
      • K(b);P_SPINQ(d),S_FLIGHT,XS(G)::B(C)
      • Q(d);N_GUARD,P_SPINQ(d),SBLOCK,XS(G)::QAB(F),XP(e)
      • Q(d);XR(H)::R1(B)
      • Q(d);::R1(B)
      • P(f);::S(G),XP(f)
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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).