MESON Chess Problem Database

Problem Display
PID: 69552 (6Q1/2p1p3/2r5/2p2p2/2ppp3/1N1kPP2/3pNP2/3K4 w - - 0 1)

Joseph, Fernand

Het Belgisch Schaakbord (L'Echiquier Belge), 1957

6Q1/2p1p3/2r5/2p2p2/2ppp3/1N1kPP2/3pNP2/3K4

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Sxc5#
    • 1...Rb6
      • 2.Sxc5#
    • 1...Rd6
      • 2.Sxc5#
    • 1...Re6
      • 2.Sxc5#
    • 1...Rf6
      • 2.Sxc5#
    • 1...Rg6
      • 2.Sxc5#
    • 1...Rh6
      • 2.Sxc5#
    • 1...cxb3
      • 2.Qxb3#
    • 1...c3
      • 2.Sf4#
    • 1...dxe3
      • 2.Qd5#
  • Keys
    • 1.Qe6!
      • 1...Rxe6
        • 2.Sxc5#
      • 1...cxb3
        • 2.Qxb3#
      • 1...dxe3
        • 2.Qd5#
      • 1...exf3
        • 2.Qxf5#
      • 1...Ra6
        • 2.Sxc5#
      • 1...Rb6
        • 2.Sxc5#
      • 1...Rd6
        • 2.Sxc5#
      • 1...c3
        • 2.Sf4#
      • 1...f4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(h);N_GUARD::S(D),XP(f)
    • P(c);OGATE,XS(D)::QAR2(G),XP(c)
    • P(c);SBLOCK::S(B)
    • P(d);OGATEB,XP(E)::QAR2(G)
  • Actual
    • Q(G);
    • Vars
      • R(h);N_GUARD,XQ(G)::S(D),XP(f)
      • P(c);OGATE,XS(D)::QAR2(G),XP(c)
      • P(d);OGATEB,XP(E)::QAR2(G)
      • P(e);OGATEB,XP(F)::QAB(G),XP(g)
      • R(h);N_GUARD::S(D),XP(f)
      • P(c);SBLOCK::S(B)
      • P(g);N_GUARD::QAB1(G),XP(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).