MESON Chess Problem Database

Problem Display
PID: 193756 (2q5/2p4B/n3nr2/KQ2Nr2/4k1P1/2p1P3/4PP2/b7 w - - 0 1)

Guidelli, Giorgio

1/2 Prize, L'Italia Scacchistica, 1916

2q5/2p4B/n3nr2/KQ2Nr2/4k1P1/2p1P3/4PP2/b7

#2

8 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rh6
      • 2.Bxf5#
  • Tries
    • 1.Qc4+?
      • 1...Sd4
        • 2.Qxd4#
      • 1...Kxe5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qe5#
      • 1...Sac5
        • 2.Qc6#
      • 1...Sec5
        • 2.Qc4#
      • 1...c5
        • 2.Qd3#
      • 1...Rg6
        • 2.Qxf5#
      • 1...c2
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD::B(H),XR(d)
  • Tries
    • Try
      • Q(F);CHECK,P_SPINS(G)
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAR1(F),XS(f)
      • Refutation
        • K(c);N_SPINR(d),P-FLIGHT,XS(G)
  • Actual
    • S(G);P_SPINQ(F)
    • Threat
      • QAR1(F)
    • Vars
      • S(e);N_PINQ(F)::QAB(F)
      • S(f);N_PINQ(F)::QAR2(F)
      • P(h);N_PINQ(F)::QAB1(F)
      • R(g);N_GUARD,N_SPINR(d)::QAB1(F),XR(d)
      • P(b);N_GUARD::S(G)
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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).