MESON Chess Problem Database

Problem Display
PID: 147961 (BB4K1/4N1p1/8/3P1pq1/2QnkprR/8/b5P1/5N2 w - - 0 1)

Hertmann, Sandor

L'Italia Scacchistica, 1930

BB4K1/4N1p1/8/3P1pq1/2QnkprR/8/b5P1/5N2

#2

9 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Rh3?
      • threat
        • 2.Sd2#
        • 2.Qd3#
      • 1...Rxg2
        • 2.Qd3#
      • 1...Bxc4
        • 2.Sd2#
      • 1...Bb1
        • 2.Sd2#
      • 1...f3
        • 2.gxf3#
      • 1...Rg3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Sd2#
      • 1...Bxd5+
        • 2.Bxd5#
      • 1...Rxg2
        • 2.Qe3#
      • 1...Sb3
        • 2.d6#
      • 1...Sf3
        • 2.gxf3#
      • 1...f3
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);XP(B)::QAB1(C)
        • B(a);N_SPINS(b),P_PINP(E),XQ(C)::S(A)
        • B(a);::S(A)
        • P(d);OGATE::P(B),XP(d)
      • Refutation
        • R(e);
  • Actual
    • Q(C);N_PINS(b),P_SPINP(E)
    • Threat
      • S(A)
    • Vars
      • B(a);CHECK,OGATE,P_SPINB(a),XP(E)::B(G),XB(a)
      • R(e);P_SPINP(d),XP(B)::QAR1(C)
      • S(b);N_PINP(E)::B(G)+P(E)
      • S(b);OGATE::P(B),XS(b)
      • P(d);N_GUARD,P_SPINR(e)::S(A)
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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).