MESON Chess Problem Database

Problem Display
PID: 72766 (8/K6p/8/2R1p1Br/7n/Pk3qQ1/RN3n2/1B2bN2 w - - 0 1)

Fuhrer, Viktor

El Ajedrez Espanol, 1935

8/K6p/8/2R1p1Br/7n/Pk3qQ1/RN3n2/1B2bN2

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Rb5#
    • 1...Bd2
      • 2.Sxd2#
  • Tries
    • 1.Rb5+?
      • 1...Kc3
        • 2.Qxe5#
      • 1...Bb4!
    • 1.Qxf3+?
      • 1...Bc3
        • 2.Sd2#
        • 2.Rxc3#
        • 2.Rb5#
        • 2.Qd5#
        • 2.Qxc3#
        • 2.Qf7#
      • 1...Sd3
        • 2.Qd1#
        • 2.Qd5#
        • 2.Qf7#
      • 1...Sxf3!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Rb5#
      • 1...Bxd2
        • 2.Sxd2#
      • 1...Qe3
        • 2.Qg8#
      • 1...Sd3
        • 2.Rc3#
      • 1...e4
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(d);S_CUTB(a)::R(G)
    • B(a);N_GUARD::S(B),XB(a)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB(F),XP(f)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(F);CHECK,XQ(d)
      • Refutation
        • S(e);XQ(F)
  • Actual
    • B(H);
    • Threat
      • R(G)
    • Vars
      • B(a);XB(H)::S(B),XB(a)
      • Q(d);N_GUARD,P_PINR(G)::QAB(F)
      • S(b);N_SPINQ(d),S_CUTQ(d)::R1(G)
      • P(f);OGATE::QAR(F)
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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).