MESON Chess Problem Database

Problem Display
PID: 173576 (Q5nB/6r1/8/3R3N/b1N1k3/7P/6P1/2n2BbK w - - 0 1)

Mucha, Boris I

Boletim da UBP, 1984

Q5nB/6r1/8/3R3N/b1N1k3/7P/6P1/2n2BbK

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg2
      • 2.Bxg2#
      • 2.Rb5#
    • 1...Rg3
      • 2.Rb5#
    • 1...Rg4
      • 2.Rb5#
    • 1...Be3
      • 2.Sd6#
    • 1...Bd4
      • 2.Re5#
    • 1...Sa2
      • 2.Bd3#
    • 1...Sb3
      • 2.Bd3#
    • 1...Sd3
      • 2.Bxd3#
  • Tries
    • 1.Rb5+?
      • 1...Rb7
        • 2.Qxb7#
      • 1...Kd4!
  • Keys
    • 1.g4!
      • threat
        • 2.Bg2#
      • 1...Kf3
        • 2.Rf5#
      • 1...Rxg4
        • 2.Rb5#
      • 1...Rf7
        • 2.Rd4#
      • 1...Bd4
        • 2.Re5#
      • 1...Bd1
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::QAB(H)+R(F)
    • B(b);SBLOCK::S(E)
    • B(b);SBLOCK::QAB(H)+R(F),DCHECK
    • S(a);N_GUARD::B(A)
    • S(a);N_GUARD::B(A),XS(a)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • R(e);N_GUARD,P_SPINR(e)::QAB(H),XR(e)
      • Refutation
        • K(d);P-FLIGHT,P_SPINR(e)
  • Actual
    • P(C);
    • Threat
      • B(A)
    • Vars
      • K(d);S_FLIGHT::QAB(H)+R(F),DCHECK
      • R(e);N_GUARD,XP(C)::QAB(H)+R(F)
      • R(e);::QAB(H)+R(F),DCHECK
      • B(b);SBLOCK::QAB(H)+R(F),DCHECK
      • B(c);N_GUARD::QAB(H)+R(F)
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).