MESON Chess Problem Database

Problem Display
PID: 206778 (8/8/8/1p6/n7/B1Rp4/pPbN4/k2N3K w - - 0 1)

Klark, Dmitry Vasilevich

La Strategie, 1870

8/8/8/1p6/n7/B1Rp4/pPbN4/k2N3K

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Sb3#
    • 1...Bxd1
      • 2.Rc1#
    • 1...Bb3
      • 2.Rc1#
    • 1...Sxb2
      • 2.Bxb2#
  • Tries
    • 1.Sb3+?
      • 1...Bxb3
        • 2.Rc1#
      • 1...Kb1!
  • Keys
    • 1.b4!
      • 1...Bxd1
        • 2.Rc1#
      • 1...Sxc3
        • 2.Bb2#
      • 1...Sc5
        • 2.Bb2#
      • 1...Bb1
        • 2.Sb3#
      • 1...Bb3
        • 2.Rc1#
      • 1...Sb2
        • 2.Bxb2#
      • 1...Sb6
        • 2.Bb2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD,SBLOCK::S(D)
    • B(c);OGATE,XS(A)::R(F)
    • B(c);OGATE::R(F)
    • S(e);OGATE,XP(C)::B(E),XS(e)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • B(c);OGATE,XS(D)::R(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • B(c);OGATE,XS(A)::R(F)
      • S(e);N_GUARD,XR(F)::B(E)
      • S(e);N_GUARD::B(E)
      • B(c);N_GUARD,SBLOCK::S(D)
      • B(c);OGATE::R(F)
      • S(e);N_GUARD::B(E),XS(e)
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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).