MESON Chess Problem Database

Problem Display
PID: 81835 (k7/2K1p3/2pp4/1P1ppn2/1P2B1n1/2b3R1/1P2r2r/2q2QBR w - - 0 1)

Latzel, Gerhard Paul

Prize, Die Schwalbe 046. TT, 1942

k7/2K1p3/2pp4/1P1ppn2/1P2B1n1/2b3R1/1P2r2r/2q2QBR

#2

9 + 12

56 The Problemist 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Qa1#
    • 1...Qf4
      • 2.Qa1#
    • 1...Qg5
      • 2.Qa1#
    • 1...Qh6
      • 2.Qa1#
    • 1...Qa1
      • 2.Qxa1#
    • 1...Rg2
      • 2.Rh8#
    • 1...Rh8
      • 2.Rxh8#
    • 1...Be1
      • 2.Ra3#
    • 1...Bd2
      • 2.Ra3#
    • 1...Sxg3
      • 2.Qf8#
    • 1...Sh4
      • 2.Qf8#
    • 1...Sh6
      • 2.Qf8#
    • 1...cxb5
      • 2.Bxd5#
  • Keys
    • 1.b6!
      • threat
        • 2.b7#
      • 1...Qe3
        • 2.Qa1#
      • 1...Ref2
        • 2.Qa6#
      • 1...Re3
        • 2.Qa6#
      • 1...Rhf2
        • 2.Rh8#
      • 1...Bd4
        • 2.Ra3#
      • 1...Sf2
        • 2.Rg8#
      • 1...Sge3
        • 2.Rg8#
      • 1...Sfe3
        • 2.Qf8#
      • 1...Sd4
        • 2.Qf8#
      • 1...d4
        • 2.Bxc6#
      • 1...c5
        • 2.Bxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 13
  • Sets
    • Q(a);OGATE::QAB(A)
    • Q(a);OGATE,SBLOCK::QAB(A)
    • Q(a);OGATE::QAB(A),XQ(a)
    • R(c);OGATE::R(C)
    • R(c);OGATE::R(C),XR(c)
    • B(d);OGATE::R(E)
    • S(h);OGATE,XR(E)::QAR(A)
    • S(h);OGATE::QAR(A)
    • P(i);OGATEB,P_SPINP(f),XP(H)::B(G),XP(f)
  • Actual
    • P(H);
    • Threat
      • P(H)
    • Vars
      • Q(a);OGATE::QAB(A)
      • R(b);OGATE::QAR2(A)
      • R(c);OGATE::R(C)
      • B(d);OGATE::R(E)
      • S(e);OGATE::R(E)
      • S(h);OGATE::QAR(A)
      • P(f);OGATE,P_SPINP(i)::B(G),XP(i)
      • P(i);OGATEB,P_SPINP(f)::B(G),XP(f)
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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).