MESON Chess Problem Database

Problem Display
PID: 47635 (R3nR2/2p1kBp1/2r3r1/4N1q1/1n4NQ/B7/2p3K1/8 w - - 0 1)

Burbach, Johannes Jacob

1st HM., Themes-64 01. TT (B), 1956

R3nR2/2p1kBp1/2r3r1/4N1q1/1n4NQ/B7/2p3K1/8

#2

8 + 9

4872 Themes-64 1957
102 Probleemblad 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf8
      • 2.Rxe8#
    • 1...Rcd6
      • 2.Raxe8#
      • 2.Rfxe8#
    • 1...Rgd6
      • 2.Raxe8#
      • 2.Rfxe8#
  • Tries
    • 1.Bxb4+?
      • 1...Rcd6
        • 2.Raxe8#
        • 2.Rfxe8#
      • 1...Rgd6
        • 2.Raxe8#
        • 2.Rfxe8#
      • 1...Sd6
        • 2.Rae8#
        • 2.Rfe8#
      • 1...Rc5!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Rfxe8#
      • 1...Kxd8
        • 2.Rxe8#
      • 1...Kxf8
        • 2.Rxe8#
      • 1...Sd6
        • 2.Sxg6#
      • 1...Sf6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINQ(c),S_FLIGHT,XR(H)::R1(G),XS(i)
  • Tries
    • Try
      • B(B);CHECK,XS(b)
      • Refutation
        • R(d);P_SPINR(d)
  • Actual
    • R(G);
    • Threat
      • R1(H),XS(i)
    • Vars
      • K(g);N_SPINS(b),P_SPINS(i),S_FLIGHT,XR(G)::R1(H),XS(i)
      • K(g);N_SPINQ(c),S_FLIGHT,XR(H)::R1(G),XS(i)
      • S(i);N_SPINS(b),S_CUTR(d)::S(E),XR(e)
      • S(i);N_SPINQ(c),S_CUTR(e)::S(E),XR(d)
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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).