MESON Chess Problem Database

Problem Display
PID: 278135 (8/3B4/6pq/1bBk3p/2pP1Pp1/5RQ1/2P4K/5N2 w - - 0 1)

Libis, Zdenek

Sachova skladba, 2024

8/3B4/6pq/1bBk3p/2pP1Pp1/5RQ1/2P4K/5N2

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...gxf3
      • 2.Qxf3#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Rf2#
        • 2.Ra3#
        • 2.Rb3#
        • 2.Rc3#
        • 2.Rd3#
        • 2.Re3#
        • 2.Rg3#
        • 2.Rh3#
      • 1...Qxf4+
        • 2.Rxf4#
      • 1...g3+
        • 2.Rxg3#
      • 1...Ke4
        • 2.Rf2#
      • 1...Bxd7
        • 2.Re3#
      • 1...gxf3
        • 2.Qxf3#
      • 1...c3
        • 2.Rxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE,XR(D)::QAB(E),XP(b)
  • Actual
    • Q(E);
    • Threat
      • DUALS(8)
    • Vars
      • Q(g);CHECK,OGATE,XP(G)::QAB(E)+R(D),XQ(g)
      • P(b);CHECK::QAB(E)+R(D),XP(b)
      • K(d);S_FLIGHT::QAB(E)+R(D)
      • B(c);XB(I)::QAB(E)+R(D)
      • P(b);OGATE,P_SPINP(b),XR(D)::QAB(E),XP(b)
      • P(a);::QAB(E)+R(D),XP(a)
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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).