MESON Chess Problem Database

Problem Display
PID: 183292 (7B/np4K1/Rr1N1p2/1p6/1PBk1N2/3P4/3Pbrp1/5Rn1 w - - 0 1)

Popovski, Aleksandr

Bulletin Ouvrier des Echecs, 1953

7B/np4K1/Rr1N1p2/1p6/1PBk1N2/3P4/3Pbrp1/5Rn1

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Kg6#
      • 2.Kh6#
      • 2.Kf7#
      • 2.Kh7#
      • 2.Kf8#
      • 2.Kg8#
  • Keys
    • 1.Kxf6!
      • threat
        • 2.Kf5#
        • 2.Kg5#
        • 2.Ke6#
        • 2.Kg6#
        • 2.Ke7#
        • 2.Kf7#
      • 1...Rxf4+
        • 2.Rxf4#
      • 1...Rxd6+
        • 2.Rxd6#
      • 1...Bxd3
        • 2.Kg5#
        • 2.Ke6#
        • 2.Ke7#
        • 2.Kf7#
      • 1...Bg4
        • 2.Kg5#
        • 2.Kg6#
        • 2.Ke7#
        • 2.Kf7#
      • 1...Bh5
        • 2.Kf5#
        • 2.Kg5#
        • 2.Ke6#
        • 2.Ke7#
      • 1...Sf3
        • 2.Se6#
      • 1...Sh3
        • 2.Kf5#
        • 2.Ke6#
        • 2.Kg6#
        • 2.Ke7#
        • 2.Kf7#
      • 1...Sc6
        • 2.Sf5#
      • 1...Sc8
        • 2.Kf5#
        • 2.Kg5#
        • 2.Ke6#
        • 2.Kg6#
        • 2.Kf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • K(I);P_SPINS(F),S_FLIGHT,XP(h)
    • Threat
      • DUALS(6)
    • Vars
      • R(c);CHECK,OGATE,P_PINS(H),XS(F)::R(A),XR(c)
      • R(g);CHECK,OGATE,XS(H)::R(G),XR(g)
      • S(a);N_PINS(F),P_PINS(H)::S(F)
      • S(i);::S(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).