MESON Chess Problem Database

Problem Display
PID: 214682 (8/6B1/5R2/8/1N4K1/8/1p2p1Qp/kB2n2N w - - 0 1)

Klark, Dmitry Vasilevich

Shakhmatny Listok, 1880

8/6B1/5R2/8/1N4K1/8/1p2p1Qp/kB2n2N

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bc2?
      • threat
        • 2.Ra6#
        • 2.Qa8#
      • 1...Sxg2
        • 2.Ra6#
      • 1...b1Q
        • 2.Ra6#
      • 1...b1S
        • 2.Ra6#
      • 1...b1B
        • 2.Rf1#
        • 2.Rf2#
        • 2.Rf3#
        • 2.Rf4#
        • 2.Rf5#
        • 2.Ra6#
        • 2.Rb6#
        • 2.Rc6#
        • 2.Rd6#
        • 2.Re6#
        • 2.Rg6#
        • 2.Rh6#
        • 2.Rf7#
        • 2.Rf8#
      • 1...b1R
        • 2.Ra6#
      • 1...Sf3
        • 2.Ra6#
      • 1...Sxc2!
  • Keys
    • 1.Rf1!
      • 1...Kxb1
        • 2.Rxe1#
      • 1...Sxg2
        • 2.Sc2#
      • 1...exf1Q
        • 2.Qxb2#
      • 1...exf1S
        • 2.Qxb2#
      • 1...exf1B
        • 2.Qxb2#
      • 1...exf1R
        • 2.Qxb2#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sd3
        • 2.Sc2#
        • 2.Qa8#
      • 1...Sf3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);XQ(C)::R(F)
        • P(c);::B(G)+R(F),DCHECK
        • S(b);::R(F)
      • Refutation
        • S(b);XB(A)
  • Actual
    • R(F);P_PINP(c)
    • Vars
      • K(a);N_SPINP(c),OGATEB,P-FLIGHT,P_SPINS(b),XB(A)::R(F),XS(b)
      • S(b);N_GUARD,XQ(C)::S(D)
      • P(d);OGATE,XR(F)::QAB1(C),XP(c)
      • S(b);N_GUARD::S(D),XS(b)
      • S(b);N_GUARD::S(D)
HTML5 logo

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).