MESON Chess Problem Database

Problem Display
PID: 73122 (3n2K1/4N1Qp/2rpp3/1q4P1/R2Pk1p1/R6N/2PPr3/1B5n w - - 0 1)

Zilahi, Zoltan

Tijdschrift vd KNSB, 1936

3n2K1/4N1Qp/2rpp3/1q4P1/R2Pk1p1/R6N/2PPr3/1B5n

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Qxh7#
      • 2.c4#
    • 1...Qxb1
      • 2.Qxh7#
    • 1...Qb2
      • 2.Qxh7#
    • 1...Qa5
      • 2.c4#
    • 1...Qc5
      • 2.c4#
      • 2.dxc5#
    • 1...Qd5
      • 2.c4#
    • 1...Qf5
      • 2.c4#
    • 1...Qxg5
      • 2.c4#
    • 1...Qb6
      • 2.Qxh7#
    • 1...Qb7
      • 2.Qxh7#
    • 1...Qb8
      • 2.Qxh7#
    • 1...Rf2
      • 2.Re3#
    • 1...Rg2
      • 2.Re3#
    • 1...Rh2
      • 2.Re3#
    • 1...Re3
      • 2.Rxe3#
    • 1...d5
      • 2.Qe5#
      • 2.Qxh7#
    • 1...e5
      • 2.Qxh7#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qf4#
      • 1...Qxg5+
        • 2.Sxg5#
      • 1...gxh3
        • 2.Qf3#
      • 1...Qe5
        • 2.c3#
      • 1...Qf5
        • 2.c4#
      • 1...Rf2
        • 2.Re3#
      • 1...e5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(e);N_GUARD,XB(A)::QAB(J),XP(i)
    • Q(e);N_GUARD::QAB(J),XP(i)
    • Q(e);N_GUARD::B(A)+P(B)
    • Q(e);N_GUARD,P_PINQ(J),XP(H)::B(A)+P(B)
    • R(b);N_GUARD::R1(D)
    • R(b);N_GUARD::R1(D),XR(b)
    • P(h);S_CUTQ(e)::QAB(J),XP(i)
  • Actual
    • Q(J);
    • Threat
      • QAR1(J)
    • Vars
      • Q(e);CHECK,XP(H)::S(E),XQ(e)
      • P(d);N_GUARD,XS(E)::QAB1(J)
      • Q(e);N_GUARD::B(A)+P(B)
      • R(b);N_GUARD::R1(D)
      • P(h);N_GUARD,S_CUTQ(e)::QAB1(J)
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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).