MESON Chess Problem Database

Problem Display
PID: 35374 (1b4b1/q2R1nK1/1Q3N2/5pp1/RB2NknP/4p1r1/6P1/8 w - - 0 1)

Knoppel, Jan Heribert

2nd HM., Tidskrift for Schack, 1951

1b4b1/q2R1nK1/1Q3N2/5pp1/RB2NknP/4p1r1/6P1/8

#2

9 + 10

3680 Jan Knoppel Udvalgte Skakproblemer 1955

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5+?
      • 1...Ke5
        • 2.Bc3#
      • 1...Kxe4!
    • 1.Sh5+?
      • 1...Ke5
        • 2.Bc3#
      • 1...Kxe4!
  • Keys
    • 1.Sxg5!
      • threat
        • 2.Bd6#
      • 1...Ke5
        • 2.Bc3#
      • 1...Qxa4
        • 2.Qd4#
      • 1...Be5
        • 2.Se6#
      • 1...Bd6
        • 2.Bxd6#
      • 1...Sge5
        • 2.Rd4#
      • 1...Sfe5
        • 2.Sh5#
      • 1...Sd6
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
    • Try
      • S(G);CHECK
      • Vars
        • K(c);S_FLIGHT::B(C)
      • Refutation
        • K(c);P-FLIGHT,XS(D)
  • Actual
    • S(D);XP(f)
    • Threat
      • R(B)+B(C),DCHECK
    • Vars
      • K(c);S_FLIGHT::B(C)
      • Q(g);N_GUARD,XR(B)::QAR2(F)
      • B(i);P_PINS(G),SBLOCK::S(D)
      • B(i);::R(B)+B(C),DCHECK,XB(i)
      • S(d);P_PINS(D),SBLOCK::R(H)
      • S(h);P_PINR(H),SBLOCK::S(G)
      • S(h);P_PINR(H)::R(B)+B(C),DCHECK,XS(h)
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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).