MESON Chess Problem Database

Problem Display
PID: 49368 (8/4p3/1r1p3n/Q4N2/p3k2p/rR5p/6n1/Bb1N1R1K w - - 0 1)

Wrobel, Marian

1st Prize, L'Italia Scacchistica, 1948

8/4p3/1r1p3n/Q4N2/p3k2p/rR5p/6n1/Bb1N1R1K

#2

7 + 11

461 Schach-Express 1949
23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sc3#
    • 1...Sf4
      • 2.Sf2#
    • 1...Sxf5
      • 2.Qxf5#
  • Tries
    • 1.Sxd6+?
      • 1...Rxd6
        • 2.Qe5#
      • 1...exd6!
    • 1.Rf4+?
      • 1...Sxf4
        • 2.Sf2#
      • 1...Kxf4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd4#
      • 1...Sxf5
        • 2.Sf2#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Rb4
        • 2.Rxb4#
      • 1...e5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::S(B)
    • S(b);SBLOCK::S(B)
    • S(j);OGATE,XS(G)::QAB1(F),XS(j)
  • Tries
    • Try
      • S(G);CHECK,XP(i)
      • Vars
        • R(h);XS(G)::QAR1(F)
      • Refutation
        • P(k);XS(G)
    • Try
      • R(C);CHECK
      • Vars
        • S(b);SBLOCK,XR(C)::S(B)
      • Refutation
        • K(f);P-FLIGHT,XR(C)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • S(j);SBLOCK,XS(G)::S(B)
      • B(a);N_GUARD::QAB1(F),XB(a)
      • S(b);N_GUARD::R1(C),XS(b)
      • R(h);N_GUARD::R(E),XR(h)
      • P(k);SBLOCK::S(B)
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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).