MESON Chess Problem Database

Problem Display
PID: 86682 (3R2K1/8/3PNpQ1/2NpkB1p/4pp2/2r5/1r6/B3R3 w - - 0 1)

Gross, Erwin

Dunaujvarosi Hirlap, 1962-1964

3R2K1/8/3PNpQ1/2NpkB1p/4pp2/2r5/1r6/B3R3

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Sd3#
    • 1...Ra2
      • 2.Sd3#
    • 1...Rbc2
      • 2.Sd3#
    • 1...Rf2
      • 2.Sd3#
    • 1...Rg2
      • 2.Sd3#
    • 1...Rh2
      • 2.Sd3#
    • 1...Rbb3
      • 2.Sd3#
    • 1...Rb4
      • 2.Sd3#
    • 1...Rb5
      • 2.Sd3#
    • 1...Rb6
      • 2.Sd3#
    • 1...Rb7
      • 2.Sd3#
    • 1...Rb8
      • 2.Sd3#
    • 1...Rc1
      • 2.Sd3#
    • 1...Rcc2
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Rc4
      • 2.Sd3#
  • Tries
    • 1.Bg4?
      • threat
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
        • 2.Qg7#
      • 1...hxg4!
  • Keys
    • 1.Bxe4!
      • threat
        • 2.Qf5#
      • 1...dxe4
        • 2.Qxe4#
      • 1...Rg2
        • 2.Bxg2#
      • 1...Rg3
        • 2.Bf3#
      • 1...f5
        • 2.Qxf5#
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 15
  • Sets
    • R(a);P_SPINR(b)::S(C)
    • R(a);P_PINQ(G),P_SPINR(b)::S(C)
    • R(a);P_PINR(H),P_SPINR(b)::S(C)
    • R(b);N_GUARD,P_SPINR(a)::S(C)
    • R(b);N_GUARD,P_SPINR(a)::S(C),XR(b)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(G)
      • Refutation
        • P(g);XB(D)
  • Actual
    • B(D);XP(c)
    • Threat
      • QAR1(G)
    • Vars
      • P(e);OGATE,P_SPINP(e),XB(D)::QAR1(G),XP(e)
      • R(a);N_GUARD,P_PINQ(G),P_SPINR(b)::R(B)+B(D),XR(a)
      • R(b);N_GUARD,P_PINQ(G),P_SPINR(a)::R(B)+B(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).