MESON Chess Problem Database

Problem Display
PID: 214694 (3K4/4Q3/8/P2k4/3p4/1p6/nPb1B3/2R1N3 w - - 0 1)

Klark, Dmitry Vasilevich

Vsemirnaya Illustrantiya, 1878

3K4/4Q3/8/P2k4/3p4/1p6/nPb1B3/2R1N3

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Rc5#
    • 1...Bd1
      • 2.Rc5#
    • 1...Bd3
      • 2.Rc5#
    • 1...Be4
      • 2.Rc5#
    • 1...Bf5
      • 2.Rc5#
    • 1...Bg6
      • 2.Rc5#
    • 1...Bh7
      • 2.Rc5#
  • Tries
    • 1.Bf3+?
      • 1...Be4
        • 2.Bxe4#
        • 2.Rc5#
      • 1...Kc4!
    • 1.Bc4+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kxc4!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Bf3#
      • 1...Kxe5!
  • Keys
    • 1.Sd3!
      • 1...Kc4
        • 2.Qc5#
      • 1...Kc6
        • 2.Qd7#
      • 1...Bxd3
        • 2.Rc5#
      • 1...Sxc1
        • 2.Sb4#
      • 1...Bb1
        • 2.Sf4#
        • 2.Bf3#
        • 2.Rc5#
        • 2.Qe5#
      • 1...Bd1
        • 2.Sf4#
        • 2.Rc5#
        • 2.Qe5#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • B(b);OGATE::R1(A)
  • Tries
    • Try
      • B(D);CHECK
      • Refutation
        • K(e);P_SPINB(b),S_FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(e);S_FLIGHT::QAR1(F)
      • Refutation
        • K(e);P_SPINB(b),S_FLIGHT,XB(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(e);P_SPINB(b),S_FLIGHT::B(D)
      • Refutation
        • K(e);P-FLIGHT,XQ(F)
  • Actual
    • S(B);
    • Vars
      • K(e);P_SPINB(b),S_FLIGHT::QAR1(F)
      • K(e);P_SPINB(b),S_FLIGHT::QAB1(F)
      • B(b);OGATE,XS(B)::R1(A)
      • S(a);N_GUARD,XR(A)::S(B)
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(a)
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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).