MESON Chess Problem Database

Problem Display
PID: 92038 (1B6/3p3Q/1n2N3/3k2b1/p1p1R1K1/8/B1q1nN2/8 w - - 0 1)

Steinweg, Richard

Deutsche Schachblatter, 1938

1B6/3p3Q/1n2N3/3k2b1/p1p1R1K1/8/B1q1nN2/8

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe4+
      • 2.Qxe4#
    • 1...Sa8
      • 2.Qxd7#
    • 1...d6
      • 2.Qb7#
  • Keys
    • 1.Rxc4!
      • threat
        • 2.Rc5#
      • 1...Qe4+
        • 2.Qxe4#
      • 1...Qf5+
        • 2.Qxf5#
      • 1...Qxc4+
        • 2.Qe4#
      • 1...Kxe6
        • 2.Rc6#
      • 1...Qxa2
        • 2.Qe4#
      • 1...Sxc4
        • 2.Qxd7#
      • 1...dxe6
        • 2.Qb7#
      • 1...Qb3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • Q(a);CHECK,OGATE,XR(C)::QAB1(F),XQ(a)
    • S(g);N_GUARD::QAR2(F),XP(h)
    • P(h);OGATE::QAB(F)
  • Actual
    • R(C);XP(d)
    • Threat
      • B(A)+R(C),DCHECK
    • Vars
      • Q(a);CHECK,N_GUARD::QAB1(F),XQ(a)
      • Q(a);CHECK,N_GUARD::QAR2(F),XQ(a)
      • Q(a);CHECK,N_GUARD,P_SPINQ(a),XR(C)::QAB1(F)
      • K(e);S_FLIGHT,XS(E)::B(A)+R(C),DCHECK
      • Q(a);N_GUARD,XB(A)::QAB1(F)
      • S(g);N_GUARD,P_SPINS(g),XR(C)::QAR2(F),XP(h)
      • P(h);OGATE,SBLOCK,XS(E)::QAB(F)
      • Q(a);N_GUARD::QAB1(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).