MESON Chess Problem Database

Problem Display
PID: 35496 (5n2/3p4/1K6/3N4/k1N3Q1/2r5/2P5/3B4 w - - 0 1)

Selb, Hans

Hamburger Problem-Nachrichten, 1949

5n2/3p4/1K6/3N4/k1N3Q1/2r5/2P5/3B4

#2

6 + 4

3150 Asthetik und Ornamentik im Schachproblem 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Bxc2#
    • 1...Ra3
      • 2.Sb2#
      • 2.Sd2#
      • 2.Sce3#
      • 2.Sa5#
      • 2.Se5#
      • 2.Sd6#
    • 1...Rb3+
      • 2.cxb3#
    • 1...Rd3
      • 2.cxd3#
    • 1...Re3
      • 2.c3#
    • 1...Rf3
      • 2.c3#
    • 1...Rg3
      • 2.c3#
    • 1...Rh3
      • 2.c3#
    • 1...Sg6
      • 2.Qxd7#
    • 1...Sh7
      • 2.Qxd7#
  • Keys
    • 1.Qg7!
      • 1...Rb3+
        • 2.cxb3#
      • 1...Rxc2
        • 2.Bxc2#
      • 1...Rxc4
        • 2.Qa1#
      • 1...Se6
        • 2.Qxd7#
      • 1...Ra3
        • 2.Sb2#
      • 1...Rd3
        • 2.cxd3#
      • 1...Re3
        • 2.c3#
      • 1...Rf3
        • 2.c3#
      • 1...Rg3
        • 2.c3#
      • 1...Rh3
        • 2.c3#
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...d6
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
    • R(a);CHECK,OGATE::P(B),XR(a)
    • R(a);OGATE::B(A)+P(B),XR(a)
    • R(a);OGATE::B(A)+P(B)
    • S(d);N_GUARD::QAB(D),XP(c)
  • Actual
    • Q(D);
    • Vars
      • R(a);CHECK,OGATE::P(B),XR(a)
      • R(a);OGATE,P_SPINR(a),XP(B)::B(A),XR(a)
      • R(a);OGATE,XS(C)::QAR(D)
      • S(d);N_GUARD::QAB(D),XP(c)
      • R(a);SBLOCK::S(C)
      • R(a);OGATE::B(A)+P(B),XR(a)
      • R(a);OGATE::B(A)+P(B)
      • R(a);OGATE,SBLOCK::B(A)+P(B)
      • P(c);OGATE::QAR(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).