MESON Chess Problem Database

Problem Display
PID: 190118 (1Q3Nb1/pp6/3r1P1n/3Nk2p/2pR1Rq1/2B2Pp1/4P3/b2K4 w - - 0 1)

Gross, Izidor

Magyar Sakkvilag, 1913

1Q3Nb1/pp6/3r1P1n/3Nk2p/2pR1Rq1/2B2Pp1/4P3/b2K4

#2

10 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Sg6#
    • 1...Bxd5
      • 2.Rde4#
  • Tries
    • 1.Sg6+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Qxg6!
    • 1.Sd7+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Qxd7!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Qxd6#
      • 1...Qxf4
        • 2.Rd5#
      • 1...Sf5
        • 2.Sbd7#
      • 1...Qd7
        • 2.Sbxd7#
      • 1...Qe6
        • 2.Sg6#
      • 1...Bd5
        • 2.Rde4#
      • 1...Sf7
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(d);N_GUARD,SBLOCK::S(J)
    • B(k);SBLOCK,XS(G)::B(C)+R(E),DCHECK
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(e);N_SPINR(g),P-FLIGHT::QAR2(I)
      • Refutation
        • Q(d);XS(J)
    • Try
      • S(J);CHECK
      • Vars
        • K(e);N_SPINR(g),P-FLIGHT::QAR2(I)
      • Refutation
        • Q(d);XS(J)
  • Actual
    • S(G);P_SPINR(E)
    • Threat
      • QAB1(I),XR(g)
    • Vars
      • Q(d);SBLOCK,XR(F)::B(C)+R(E),DCHECK
      • S(h);S_CUTQ(d)::S(G)
      • Q(d);N_GUARD::S(G),XQ(d)
      • Q(d);N_GUARD,SBLOCK::S(J)
      • B(k);N_PINR(E)::B(C)+R(E),DCHECK
      • S(h);S_CUTB(k)::S(G),XP(c)
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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).