MESON Chess Problem Database

Problem Display
PID: 179107 (4B3/rn3P1K/2P1k3/pQ2P1B1/3p2PN/bPp4N/2n1p3/1bq5 w - - 0 1)

Eriksson, Finn Olof

Arbeidermagasinet, 1938

4B3/rn3P1K/2P1k3/pQ2P1B1/3p2PN/bPp4N/2n1p3/1bq5

#2

11 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Sf4#
    • 1...Qf4
      • 2.Sxf4#
    • 1...Qd1
      • 2.Sf4#
    • 1...Qe1
      • 2.Sf4#
    • 1...Qg1
      • 2.Sf4#
    • 1...Qh1
      • 2.Sf4#
    • 1...Bb2
      • 2.f8S#
  • Keys
    • 1.Sg6!
      • threat
        • 2.Qc4#
      • 1...Qh1
        • 2.Sf4#
      • 1...Se3
        • 2.Sf4#
      • 1...Sb4
        • 2.f8S#
      • 1...Sd6
        • 2.Sf8#

This is a version of 19315

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::S(B)
    • Q(b);N_GUARD::S(B),XQ(b)
    • B(e);N_GUARD::P=S
  • Actual
    • S(D);
    • Threat
      • QAB(E)
    • Vars
      • Q(b);N_GUARD,P_PINS(B)::S(D)
      • S(c);P_PINS(D),S_CUTQ(b)::S(B)
      • S(c);P_PINS(D),S_CUTB(e)::P=S
      • S(k);P_PINP(I),S_CUTB(e)::S(D)
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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).