MESON Chess Problem Database

Problem Display
PID: 138533 (R5rk/1P6/7K/8/2n5/8/b7/8 w - - 0 1)

Nesic, Milivoj S

Vecherni Novosti, 1969

R5rk/1P6/7K/8/2n5/8/b7/8

#2

3 + 4

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa8
      • 2.bxa8Q#
      • 2.bxa8R#
    • 1...Rb8
      • 2.Rxb8#
    • 1...Rc8
      • 2.Rxc8#
      • 2.bxc8Q#
      • 2.bxc8R#
    • 1...Rd8
      • 2.Rxd8#
    • 1...Re8
      • 2.Rxe8#
    • 1...Rf8
      • 2.Rxf8#
  • Keys
    • 1.b8Q!
      • threat
        • 2.Qxg8#
      • 1...Rxb8
        • 2.Rxb8#
      • 1...Rc8
        • 2.Qxc8#
      • 1...Rd8
        • 2.Qxd8#
      • 1...Re8
        • 2.Qxe8#
      • 1...Rf8
        • 2.Qxf8#
      • 1...Sb2
        • 2.Qe5#
        • 2.Qxb2#
      • 1...Sd2
        • 2.Qe5#
        • 2.Qb2#
      • 1...Sa3
        • 2.Qe5#
        • 2.Qb2#
      • 1...Se3
        • 2.Qe5#
        • 2.Qb2#
      • 1...Sa5
        • 2.Qe5#
        • 2.Qb2#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qe5#
      • 1...Sd6
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);N_SPINR(c),OGATE,XR(C)::PXR(c)=Q
    • R(c);OGATEB::R(C),XR(c)
  • Actual
    • P(B);
    • Threat
      • QAR1(B),XR(c)
    • Vars
      • R(c);OGATE,XQ(B)::R(C),XR(c)
      • R(c);OGATEB::QAR(B),XR(c)
      • R(c);OGATEB::QAR2(B),XR(c)
      • S(b);N_GUARD::QAB(B),XS(b)
      • S(b);N_GUARD::QAB(B)
HTML5 logo

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).