MESON Chess Problem Database

Problem Display
PID: 57327 (1bR1BB2/1p6/1rr3QK/1N1n4/2k2nb1/4P3/P3P3/1R6 w - - 0 1)

Guidelli, Giorgio

3rd Prize, Brisbane Courier, 1919

1bR1BB2/1p6/1rr3QK/1N1n4/2k2nb1/4P3/P3P3/1R6

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Rxc5#
    • 1...Be6
      • 2.Qe4#
    • 1...Sd3
      • 2.exd3#
    • 1...Se6
      • 2.Qd3#
  • Tries
    • 1.Rxc6+?
      • 1...bxc6
        • 2.Qe4#
      • 1...Rxc6!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Rb4#
      • 1...Rxb5
        • 2.Rc1#
      • 1...Bd6
        • 2.Qc2#
      • 1...Rc5
        • 2.Rxc5#
      • 1...Be6
        • 2.Qe4#
      • 1...Sd3
        • 2.exd3#
      • 1...Se6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(f);OGATE::R1(H),XR(f)
    • B(c);N_PINQ(F)::QAR2(F)
    • S(b);OGATE::P(C),XS(b)
    • S(b);N_PINQ(F)::QAB1(F)
  • Tries
    • Try
      • R(H);CHECK,N_SPINQ(F),XR(f)
      • Vars
        • P(g);XR(H)::QAR2(F)
      • Refutation
        • R(e);P_PINQ(F),XR(H)
  • Actual
    • B(I);P_PINS(d)
    • Threat
      • R1(A)
    • Vars
      • R(e);SBLOCK,XS(E)::R(A)
      • B(h);N_PINQ(F)::QAR2(F)
      • R(f);OGATE::R1(H),XR(f)
      • B(c);N_PINQ(F),N_SPINS(d)::QAR2(F)
      • S(b);OGATE::P(C),XS(b)
      • S(b);N_PINQ(F),N_SPINS(d)::QAB1(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).