MESON Chess Problem Database

Problem Display
PID: 42928 (b2Q4/3p1P2/r4N2/1nP1k1N1/qn3pK1/1B1rPR2/p1p5/4R3 w - - 0 1)

Szoghy, Jozsef

1st Prize, Magyar Sakkelet, 1952

b2Q4/3p1P2/r4N2/1nP1k1N1/qn3pK1/1B1rPR2/p1p5/4R3

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Sxd7#
    • 1...Rd4
      • 2.exf4#
    • 1...Ra5
      • 2.Qe7#
    • 1...Ra7
      • 2.Qe7#
    • 1...Bxf3+
      • 2.Sxf3#
    • 1...Bd5
      • 2.Sxd7#
    • 1...Bc6
      • 2.Qe7#
    • 1...Sd5
      • 2.Sxd7#
    • 1...Sd4
      • 2.exf4#
    • 1...Sd6
      • 2.Qe7#
    • 1...d5
      • 2.Sd7#
    • 1...d6
      • 2.Sd7#
      • 2.Qe7#
  • Tries
    • 1.Qe8+?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Re6!
  • Keys
    • 1.Rxf4!
      • threat
        • 2.Rf5#
      • 1...Bf3+
        • 2.Sxf3#
      • 1...Rxe3
        • 2.Sxd7#
      • 1...Rxf6
        • 2.Qxf6#
      • 1...Rd4
        • 2.exd4#
      • 1...Be4
        • 2.Rxe4#
      • 1...Sd5
        • 2.Sxd7#
      • 1...Sc6
        • 2.Sf3#
      • 1...Sd4
        • 2.exd4#
      • 1...Sd6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::S(H),XP(j)
    • R(c);SBLOCK::R(A)+P(C)DCHECK,XP(f)
    • R(i);N_GUARD::QAR2(J)
    • B(k);CHECK,XR(D)::S(G),XB(k)
    • B(k);S_CUTR(c)::S(H),XP(j)
    • B(k);S_CUTR(i)::QAR2(J)
    • S(e);S_CUTR(c)::S(H),XP(j)
    • S(g);SBLOCK::R(A)+P(C)DCHECK,XP(f)
    • S(g);S_CUTR(i)::QAR2(J)
    • P(j);S_CUTR(c)::S(H)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • K(h);P_SPINP(f),S_FLIGHT,XS(H)::P=Q
      • Refutation
        • R(i);P_SPINR(i)
  • Actual
    • R(D);XP(f)
    • Threat
      • R1(D)
    • Vars
      • B(k);CHECK,N_GUARD::S(G),XB(k)
      • R(c);N_GUARD,P_SPINR(c),XP(C)::S(H),XP(j)
      • R(i);OGATE,XS(H)::QAB1(J),XR(i)
      • R(c);OGATE,P_PINR(D)::R(A)+P(C)DCHECK,XR(c)
      • B(k);N_GUARD::R1(D),XB(k)
      • S(e);P_PINR(D),S_CUTR(c)::S(H),XP(j)
      • S(e);P_PINR(D),S_CUTB(k)::S(G)
      • S(g);OGATE::R(A)+P(C)DCHECK,XS(g)
      • S(g);S_CUTR(i)::QAR2(J)
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).