MESON Chess Problem Database

Problem Display
PID: 148401 (8/bbrR4/1q1n1p2/1p2kP2/1N1p2K1/3QPp2/1B1n4/6NB w - - 0 1)

Skowronek, Ernst

Schach-Echo, 1972

8/bbrR4/1q1n1p2/1p2kP2/1N1p2K1/3QPp2/1B1n4/6NB

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Re7#
    • 1...Rc2
      • 2.Re7#
    • 1...Rc3
      • 2.Re7#
    • 1...Rc4
      • 2.Re7#
    • 1...Rc5
      • 2.Bxd4#
      • 2.Re7#
      • 2.Qxd4#
      • 2.exd4#
    • 1...Rc6
      • 2.Re7#
    • 1...Rc8
      • 2.Re7#
    • 1...S2e4
      • 2.Sxf3#
    • 1...Sxf5
      • 2.Qxf5#
  • Keys
    • 1.Qe2!
      • threat
        • 2.exd4#
      • 1...Ke4
        • 2.exd4#
      • 1...fxe2
        • 2.Sd3#
      • 1...Rc3
        • 2.Re7#
      • 1...Be4
        • 2.Qh2#
      • 1...S2e4
        • 2.Sxf3#
      • 1...S6e4
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(k);N_GUARD::R(I)
    • R(k);N_GUARD,N_SPINP(c)::R(I)
    • S(a);N_GUARD,S_CUTB(j)::S(A),XP(b)
    • S(g);OGATE,XP(H)::QAR1(D),XS(g)
  • Actual
    • Q(D);
    • Threat
      • QAR(D)+P(E)DCHECK,XP(c)
    • Vars
      • K(e);N_SPINP(c),P-FLIGHT,P_SPINP(b)::QAR(D)+P(E),XP(c)
      • P(b);XQ(D)::S(F)
      • R(k);N_GUARD,N_SPINP(c)::R(I)
      • B(j);SBLOCK::QAB(D)
      • S(a);N_GUARD,SBLOCK,S_CUTB(j)::S(A),XP(b)
      • S(g);SBLOCK::S(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).