MESON Chess Problem Database

Problem Display
PID: 90167 (r1R1B2r/2BK3b/2pNpNP1/6p1/3P1k2/3p4/5PPn/3q4 w - - 0 1)

Wong Kong Weng

Die Schwalbe, 1964

r1R1B2r/2BK3b/2pNpNP1/6p1/3P1k2/3p4/5PPn/3q4

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.g3#
    • 1...Sg4
      • 2.Sh5#
  • Keys
    • 1.Kxe6!
      • threat
        • 2.Sc4#
        • 2.Sde4#
        • 2.Sb5#
        • 2.Sf5#
        • 2.Sb7#
        • 2.Sf7#
      • 1...Qe2+
        • 2.Sde4#
      • 1...Qb3+
        • 2.Sc4#
      • 1...Qg4+
        • 2.Sf5#
      • 1...Qe1+
        • 2.Sde4#
      • 1...Rxe8+
        • 2.Sdxe8#
      • 1...Bg8+
        • 2.Sf7#
      • 1...Rxc8
        • 2.Sxc8#
      • 1...g4
        • 2.Sde4#
        • 2.Sf7#
      • 1...Ra5
        • 2.Sb5#
      • 1...Ra7
        • 2.Sb7#
      • 1...Sf3
        • 2.g3#
      • 1...Sg4
        • 2.Sh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::P(B)
    • S(b);SBLOCK,S_CUTQ(a)::S(E)
  • Actual
    • K(H);S_FLIGHT,XP(g)
    • Threat
      • DUALS(6)
    • Vars
      • Q(a);CHECK::B(G)+S(D)
      • R(j);CHECK,XB(J)::B(G)+S(D),XR(j)
      • B(h);CHECK::B(G)+S(D)
      • R(i);XR(I)::B(G)+S(D),XR(i)
      • R(i);::B(G)+S(D)
      • S(b);SBLOCK::P(B)
      • S(b);SBLOCK,S_CUTQ(a)::S(E)
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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).