MESON Chess Problem Database

Problem Display
PID: 254344 (6KR/1Q1NpPRP/3k2P1/2N5/7p/6np/7B/8 w - - 0 1)

Pimenov, Sergey Ivanovich

Pimenov, Vitaly Ivanovich

Die Schwalbe, 1930

6KR/1Q1NpPRP/3k2P1/2N5/7p/6np/7B/8

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.f8Q#
      • 2.f8B#
    • 1...e6
      • 2.f8Q#
      • 2.f8B#
  • Tries
    • 1.Kf8?
      • 1...e6
        • 2.Se4#
      • 1...e5!
    • 1.Bxg3+?
      • 1...e5
        • 2.f8Q#
        • 2.f8B#
      • 1...hxg3!
  • Keys
    • 1.f8R!
      • 1...e5
        • 2.Rf6#
      • 1...e6
        • 2.Se4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);N_SPINS(a)::P=Q
    • P(e);::P=Q
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • P(e);SBLOCK::S(B)
      • Refutation
        • P(e);N_SPINS(a)
    • Try
      • B(A);CHECK,XS(a)
      • Vars
        • P(e);P_SPINP(e),S_CUTP(c)::P=Q
      • Refutation
        • P(c);XB(A)
  • Actual
    • P(F);
    • Vars
      • P(e);N_GUARD,N_SPINS(a)::R(F)
      • P(e);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).