MESON Chess Problem Database

Problem Display
PID: 177776 (1Bn5/5K1p/1pPp1b2/1b2k3/1Np3R1/4Pp2/5p2/1B5n w - - 0 1)

Kovalev, Sergey Valentinovich

Sahs (Latvia), 1982

1Bn5/5K1p/1pPp1b2/1b2k3/1Np3R1/4Pp2/5p2/1B5n

#2

7 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg5
      • 2.Rxg5#
    • 1...Bg7
      • 2.Rg5#
    • 1...Bh8
      • 2.Rg5#
  • Keys
    • 1.Rd4!
      • threat
        • 2.Rd5#
      • 1...Bxc6
        • 2.Sxc6#
      • 1...Se7
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(i);N_GUARD::R(D),XB(i)
    • B(i);N_GUARD::R(D)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • B(e);XP(E)::S(C),XB(e)
      • S(k);N_GUARD::B(G),XP(h)
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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).