MESON Chess Problem Database

Problem Display
PID: 6869 (b4B2/2nr1p2/3r4/5R2/pk3qR1/N2Q4/2BNP2b/3K4 w - - 0 1)

Szoghy, Jozsef

L'Italia Scacchistica, 1934

b4B2/2nr1p2/3r4/5R2/pk3qR1/N2Q4/2BNP2b/3K4

#2

9 + 9

4402 150 Valogatott Feladvanya 1943
3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Rxc4#
    • 1...Qd4
      • 2.Rxd4#
    • 1...Sb5
      • 2.Rxb5#
    • 1...Sa6
      • 2.Rb5#
    • 1...Se6
      • 2.Rb5#
    • 1...Se8
      • 2.Rb5#
  • Tries
    • 1.Rgxf4+?
      • 1...Be4
        • 2.Rxe4#
      • 1...Bxf4!
  • Keys
    • 1.Sdb1!
      • threat
        • 2.Qd2#
      • 1...Bd5
        • 2.Qc3#
      • 1...Sb5
        • 2.Rxb5#
      • 1...Sd5
        • 2.Qb5#
      • 1...Re7
        • 2.Qxd6#
      • 1...Be4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(d);OGATE::R1(G),XQ(d)
    • Q(d);OGATE::R(G),XQ(d)
    • S(f);N_GUARD::R1(H),XS(f)
    • S(f);N_GUARD::R1(H)
  • Tries
    • Try
      • R(G);CHECK,XQ(d)
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::R(G),XB(i)
      • Refutation
        • B(a);XR(G)
  • Actual
    • S(C);P_SPINQ(F)
    • Threat
      • QAB(F)
    • Vars
      • B(i);N_PINQ(F)::QAB1(F)
      • S(f);N_GUARD::R1(H),XS(f)
      • S(f);N_PINQ(F)::QAR1(F)
      • R(g);N_GUARD,N_SPINR(e)::QAB(F),XR(e)
      • B(i);N_SPINQ(d),S_CUTQ(d)::QAR2(F)
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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).