MESON Chess Problem Database

Problem Display
PID: 78220 (3RK1B1/5Qb1/4P3/3Nk2r/r3p3/2Pn4/8/3b4 w - - 0 1)

Hermanson, Halvar

The Tablet, 1958

(First published on Sat May 17 1958)

3RK1B1/5Qb1/4P3/3Nk2r/r3p3/2Pn4/8/3b4

#2

7 + 7

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qc7#
    • 1...Bc2
      • 2.Qxh5#
    • 1...Bb3
      • 2.Qxh5#
    • 1...Bf6
      • 2.Qxf6#
    • 1...Bh6
      • 2.Qf6#
    • 1...Bf8
      • 2.Qf6#
    • 1...Sc1
      • 2.Qf4#
    • 1...Se1
      • 2.Qf4#
    • 1...Sb2
      • 2.Qf4#
    • 1...Sf2
      • 2.Qf4#
    • 1...Sb4
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sc5
      • 2.Qf4#
  • Keys
    • 1.Se3!
      • threat
        • 2.Rd5#
      • 1...Rf5
        • 2.Qxf5#
      • 1...Bf6
        • 2.Qc7#
      • 1...Rd4
        • 2.cxd4#
      • 1...Ra5
        • 2.Sc4#
      • 1...Ra8
        • 2.Sc4#
      • 1...Bb3
        • 2.Sg4#
      • 1...Sb4
        • 2.Sc4#
      • 1...Sf4
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • R(f);SBLOCK::QAB(D)
    • B(a);N_GUARD::QAR(D),XR(f)
    • B(g);N_GUARD::QAB1(D),XB(g)
    • B(g);N_GUARD::QAB1(D)
    • S(b);N_GUARD::QAB1(D)
    • S(b);N_GUARD::QAB1(D),XS(b)
  • Actual
    • S(B);
    • Threat
      • R1(E)
    • Vars
      • R(f);N_GUARD::QAR1(D),XR(f)
      • B(g);SBLOCK::QAB(D)
      • R(c);OGATE::P(A),XR(c)
      • R(c);N_GUARD::S(B)
      • R(c);N_GUARD,P_PINR(E)::S(B)
      • B(a);N_GUARD::S(B)
      • S(b);S_CUTR(c)::S(B)
      • S(b);SBLOCK::QAB(D),XB(g)
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).