MESON Chess Problem Database

Problem Display
PID: 263814 (2Bn4/3N2p1/5R2/b2k4/3p1P2/2BK4/8/2R5 w - - 0 1)

Anonymous

Tijdschrift vd NSB, 1894

2Bn4/3N2p1/5R2/b2k4/3p1P2/2BK4/8/2R5

#2

7 + 5

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb7
      • 2.Bxb7#
    • 1...Sf7
      • 2.Bb7#
  • Tries
    • 1.Bb7+?
      • 1...Sc6
        • 2.Bxc6#
      • 1...Sxb7!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Rc5#
        • 2.Rd6#
      • 1...Bxb4
        • 2.Sb6#
      • 1...gxf6
        • 2.Sxf6#
      • 1...Bb6
        • 2.Sxb6#
        • 2.Rd6#
      • 1...Bc7
        • 2.Rc5#
      • 1...Se6
        • 2.Bb7#
        • 2.Rf5#
      • 1...Sb7
        • 2.Bxb7#
      • 1...Sf7
        • 2.Bb7#
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::B(G),XS(e)
    • S(e);N_GUARD::B(G)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::B(G),XS(e)
      • Refutation
        • S(e);XB(G)
  • Actual
    • B(B);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);N_GUARD,XB(B)::S(F)
      • P(d);XR(E)::S(F),XP(d)
      • B(b);::R1(A)
      • S(e);N_GUARD::B(G),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).