MESON Chess Problem Database

Problem Display
PID: 163535 (bQ6/N6R/p5p1/K1p1r3/2Bk4/2nP4/3P2qN/8 w - - 0 1)

Dolginovich, Nikolai Osipovich

Novi Temi, 1973

bQ6/N6R/p5p1/K1p1r3/2Bk4/2nP4/3P2qN/8

#2

8 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Rh4+?
      • 1...Qe4
        • 2.Sf3#
      • 1...Re4
        • 2.Qh8#
      • 1...Be4
        • 2.Sc6#
      • 1...Se4
        • 2.Qb2#
      • 1...Qg4!
  • Keys
    • 1.Rd7+!
      • 1...Qd5
        • 2.Sf3#
      • 1...Rd5
        • 2.Qh8#
      • 1...Bd5
        • 2.Sc6#
      • 1...Sd5
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • Q(a);P_SPINQ(a)::S(B)
        • R(e);P_SPINR(e),S_CUTB(h),S_CUTQ(a),S_CUTQ(a),S_CUTS(b)::QAB(H)
        • B(h);P_SPINB(h)::S(F)
        • S(b);P_SPINS(b),S_CUTB(h),S_CUTQ(a),S_CUTQ(a),S_CUTR(e)::QAB(H)
      • Refutation
        • Q(a);P_SPINQ(a)
  • Actual
    • R(G);CHECK
    • Vars
      • Q(a);P_SPINQ(a)::S(B)
      • R(e);P_SPINR(e),S_CUTB(h),S_CUTQ(a),S_CUTS(b)::QAB(H)
      • B(h);P_SPINB(h)::S(F)
      • S(b);P_SPINS(b),S_CUTB(h),S_CUTQ(a),S_CUTR(e)::QAB(H)
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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).