MESON Chess Problem Database

Problem Display
PID: 24461 (4Q2K/2RN4/8/8/3p4/n2k1b2/R2Np3/1n2B1b1 w - - 0 1)

Zuk, Henryk

1st Prize, Arbejder-Skak, 1955

4Q2K/2RN4/8/8/3p4/n2k1b2/R2Np3/1n2B1b1

#2

7 + 7

3105 FIDE Album (1945-1955) 1964
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Se5#
    • 1...Be4
      • 2.Qxe4#
    • 1...Bg4
      • 2.Qe4#
    • 1...Bh5
      • 2.Qe4#
    • 1...Sxd2
      • 2.Rxd2#
    • 1...Sc3
      • 2.Sc5#
  • Tries
    • 1.Sxf3?
      • threat
        • 2.Qxe2#
      • 1...Be3
        • 2.Qg6#
      • 1...Sd2
        • 2.Rxd2#
      • 1...Sc3
        • 2.Rd2#
      • 1...Sc2!
    • 1.Rc1?
      • threat
        • 2.Sc5#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sc2!
    • 1.Rcc2?
      • threat
        • 2.Sc5#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sxc2!
    • 1.Qg6+?
      • 1...Be4
        • 2.Qxe4#
      • 1...Ke3!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sb2#
      • 1...Sxc4
        • 2.Sc5#
      • 1...Bc6
        • 2.Qxe2#
      • 1...Be4
        • 2.Sde5#
      • 1...Sc3
        • 2.Rd2#

This anticipates 51354(1958)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(b);SBLOCK::S(E)
    • B(f);N_GUARD::QAB1(F),XB(f)
    • B(f);N_GUARD::QAB1(F)
    • S(a);OGATE,XS(C)::R1(B),XS(a)
    • S(a);SBLOCK::S(E)
  • Tries
    • Try
      • S(C);XB(f)
      • Threat
        • QAB1(F),XP(c)
      • Vars
        • B(b);SBLOCK::QAB(F)
        • S(a);N_GUARD::R1(B),XS(a)
        • S(a);N_GUARD::R1(B)
      • Refutation
        • S(d);
    • Try
      • R(D);
      • Threat
        • S(E)
      • Vars
        • B(f);N_GUARD::QAB1(F),XB(f)
      • Refutation
        • S(d);
    • Try
      • R(D);
      • Threat
        • S(E)
      • Vars
        • B(f);N_GUARD::QAB1(F),XB(f)
      • Refutation
        • S(d);XR(D)
    • Try
      • Q(F);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAB1(F),XB(f)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • S(d);SBLOCK,XS(C)::S(E)
      • B(f);N_GUARD::QAB1(F),XP(c)
      • B(f);SBLOCK::S(E)
      • S(a);N_GUARD,SBLOCK::R1(B)
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).