MESON Chess Problem Database

Problem Display
PID: 18554 (2Bq1R2/2Bn1p1N/R3b3/1Kpp1kpP/2N3n1/1p3P2/pQ2Ppr1/8 w - - 0 1)

Selb, Hans

2nd Comm., Sao Paulo Chess Club, 1955-1956

2Bq1R2/2Bn1p1N/R3b3/1Kpp1kpP/2N3n1/1p3P2/pQ2Ppr1/8

#2

11 + 13

5862 An ABC of Chess Problems 1970
3150 Asthetik und Ornamentik im Schachproblem 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sgf6
      • 2.Se3#
    • 1...Sh6
      • 2.Se3#
    • 1...Sb8
      • 2.Bxe6#
    • 1...a1B
      • 2.Qb1#
    • 1...dxc4
      • 2.e4#
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd3#
      • 1...Qxc7
        • 2.Qxg5#
      • 1...dxc4
        • 2.e4#
      • 1...Sge5
        • 2.Sd6#
      • 1...Sgf6
        • 2.Se3#
      • 1...Sde5
        • 2.Bxe6#
      • 1...Sdf6
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(e);N_GUARD::S(D)
    • S(e);N_GUARD::S(D),XS(e)
    • S(e);N_GUARD,N_SPINP(l)::S(D)
    • S(k);OGATE,P_SPINB(j)::B(J),XB(j)
    • P(a);N_GUARD::QAB(A)
    • P(g);N_GUARD,XS(D)::P(B)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • Q(m);N_GUARD,XB(H)::QAR1(A),XP(i)
      • P(g);N_GUARD,XS(D)::P(B)
      • S(e);SBLOCK::S(D)
      • S(e);N_GUARD,N_SPINP(l)::S(D)
      • S(k);OGATE,P_SPINB(j)::B(J),XB(j)
      • S(k);N_SPINP(l),P_SPINB(j),S_CUTQ(m)::QAR1(A),XP(i)
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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).