MESON Chess Problem Database

Problem Display
PID: 29661 (1b1B4/1P1b2R1/3kB1pQ/N1p3N1/2p1PR1n/2Pn1p2/1p5K/8 w - - 0 1)

Antonov, Yuri Mikhailovich

Sp. Comm., Tidskrift for Schack, 1989

1b1B4/1P1b2R1/3kB1pQ/N1p3N1/2p1PR1n/2Pn1p2/1p5K/8

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Sxc4#
  • Tries
    • 1.Rf6?
      • threat
        • 2.Sf7#
      • 1...Ke5
        • 2.Sxc4#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...Se5
        • 2.Bxd7#
      • 1...Be8!
  • Keys
    • 1.Bxd7!
      • threat
        • 2.Sxc4#
      • 1...Ke5
        • 2.Sf7#
      • 1...Se5
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(i);SBLOCK::S(E),XP(d)
  • Tries
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • K(g);S_FLIGHT::S(E),XP(d)
        • B(i);OGATE,P_SPINB(i),XB(G)::R1(D),XB(i)
        • S(b);SBLOCK::R(D)+B(G),XB(i)
      • Refutation
        • B(i);
  • Actual
    • B(G);P_PINP(h),XB(i)
    • Threat
      • S(E),XP(d)
    • Vars
      • K(g);N_SPINP(h),S_FLIGHT::S(F)
      • S(b);SBLOCK::R(D)
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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).