MESON Chess Problem Database

Problem Display
PID: 92168 (3B4/rRp3NK/3kB3/r5b1/bP1N1P2/8/2p5/8 w - - 0 1)

Virtmanis, Andris

Schach, 1965

3B4/rRp3NK/3kB3/r5b1/bP1N1P2/8/2p5/8

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Se8#
    • 1...Rf5
      • 2.Sgxf5#
    • 1...R5a6
      • 2.Sgf5#
    • 1...Bb3
      • 2.Se8#
    • 1...Bb5
      • 2.Sgf5#
    • 1...Be8
      • 2.Sxe8#
    • 1...Be7
      • 2.Bxc7#
    • 1...c5
      • 2.Sgf5#
    • 1...c6
      • 2.Se8#
  • Keys
    • 1.Rb5!
      • threat
        • 2.Sgf5#
        • 2.Se8#
      • 1...Rxb5
        • 2.Se8#
      • 1...Bxb5
        • 2.Sgf5#
      • 1...Bxd8
        • 2.Sgf5#
      • 1...c5
        • 2.bxc5#
      • 1...c6
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(c);S_CUTB(b)::S(F)
    • R(c);N_GUARD::S(F),XR(c)
    • R(c);N_GUARD::S(F)
    • B(b);N_GUARD::S(F)
    • B(b);S_CUTR(c)::S(F)
    • B(b);N_GUARD::S(F),XB(b)
    • B(d);SBLOCK::B(H),XP(g)
    • P(g);S_CUTR(c)::S(F)
    • P(g);S_CUTB(b)::S(F)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • R(c);XR(E)::S(F)
      • B(b);XR(E)::S(F)
      • B(d);XB(H)::S(F)
      • P(g);OGATE,P_PINS(F)::P(A),XP(g)
      • P(g);P_PINS(F),SBLOCK::S(B)
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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).