MESON Chess Problem Database

Problem Display
PID: 135376 (3r4/6P1/1Q6/1N1kb1KR/R4P2/6p1/1p1rP3/2q4b w - - 0 1)

Laib, Kurt Friedrich

Die Schwalbe, 1952

3r4/6P1/1Q6/1N1kb1KR/R4P2/6p1/1p1rP3/2q4b

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Sc7#
    • 1...Bxf4+
      • 2.Kxf4#
    • 1...Bf6+
      • 2.Kxf6#
    • 1...g2
      • 2.e4#
  • Keys
    • 1.Kh4!
      • threat
        • 2.Rxe5#
      • 1...Rxe2
        • 2.Rd4#
      • 1...Qc3
        • 2.Sxc3#
      • 1...Qc7
        • 2.Sxc7#
      • 1...Re8
        • 2.Qd6#
      • 1...Rh8
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(g);N_GUARD,S_CUTQ(a)::S(D)
    • B(g);CHECK,XP(C)::R(F)+K(E),XB(g)
    • B(g);CHECK::R(F)+K(E),XB(g)
    • P(e);S_CUTB(b)::P(A)
  • Actual
    • K(E);P_PINB(g),S_FLIGHT
    • Threat
      • R1(F),XB(g)
    • Vars
      • R(d);N_GUARD,XP(A)::R1(B)
      • Q(a);N_GUARD::S(D),XQ(a)
      • R(h);N_GUARD::QAR1(G)
      • R(h);N_GUARD,P_PINR(F)::QAR1(G)
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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).