MESON Chess Problem Database

Problem Display
PID: 132646 (4n3/2p3p1/4K3/1pP4R/nB1kN3/4p3/4P3/6b1 w - - 0 1)

Koltanowski, George

Source?, 0000

4n3/2p3p1/4K3/1pP4R/nB1kN3/4p3/4P3/6b1

#2

6 + 8

2425 San Francisco Chronicle 0000

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Rh4#
  • Keys
    • 1.Rh4!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Sxc5+
        • 2.Sxc5#
      • 1...Kc4
        • 2.Sd2#
      • 1...Bf2
        • 2.Sxf2#
        • 2.Sg3#
      • 1...Bh2
        • 2.Sg3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sf6
        • 2.Sxf6#
      • 1...g5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,P-FLIGHT,XS(C)::R(E)
  • Actual
    • R(E);
    • Threat
      • DUALS(7)
    • Vars
      • S(c);CHECK,XP(D)::R(E)+S(C),XS(c)
      • K(d);P-FLIGHT::R(E)+S(C),DCHECK
      • B(a);::R(E)+S(C)
      • S(c);::R(E)+S(C),XS(c)
      • S(h);::R(E)+S(C),XS(h)
      • P(g);::R(E)+S(C),XP(g)
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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).