MESON Chess Problem Database

Problem Display
PID: 64905 (BK6/8/5Q2/Bp6/1N1P1RP1/1p2k1NR/pPp2ppp/n1nqrrbb w - - 0 1)

Hoffmann, Martin Wolfgang

Tages-Anzeiger, 1983

(First published on Sat Sep 24 1983)

BK6/8/5Q2/Bp6/1N1P1RP1/1p2k1NR/pPp2ppp/n1nqrrbb

#2

11 + 15

3748 FIDE Album (1983-1985) 1992
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Sxf1#
    • 1...Qd2
      • 2.Rf3#
      • 2.Re4#
      • 2.Qe5#
    • 1...Qd3
      • 2.Sd5#
    • 1...Qxd4
      • 2.Qxd4#
    • 1...Re2
      • 2.Sxf1#
      • 2.Se4#
    • 1...Se2
      • 2.Sxf1#
    • 1...Sd3
      • 2.Sd5#
  • Tries
    • 1.Qh6?
      • 1...Kd2
        • 2.Rxf2#
      • 1...Qxg4
        • 2.Rxg4#
      • 1...Qxd4
        • 2.Rf3#
      • 1...Qe2
        • 2.Sxf1#
      • 1...Qf3
        • 2.Re4#
      • 1...Qd3
        • 2.Sd5#
      • 1...Re2
        • 2.Sxf1#
      • 1...Se2
        • 2.Sxf1#
      • 1...Sd3
        • 2.Sd5#
      • 1...Qd2!
  • Keys
    • 1.Qg5!
      • 1...Kd2
        • 2.Rxf2#
      • 1...Qxg4
        • 2.Rxg4#
      • 1...Qxd4
        • 2.Rf3#
      • 1...Qe2
        • 2.Sxf1#
      • 1...Qf3
        • 2.Re4#
      • 1...Qd2
        • 2.Qe5#
      • 1...Qd3
        • 2.Sd5#
      • 1...Re2
        • 2.Sxf1#
      • 1...Se2
        • 2.Sxf1#
      • 1...Sd3
        • 2.Sd5#

Anticipated by 9596(1906), 115057(1906), 75596(1947), 185158(1948)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(c);SBLOCK::R(C)+S(B),DCHECK,XR(e)
    • Q(c);SBLOCK::S(D)
    • Q(c);OGATE,XP(E)::QAB1(I),XQ(c)
    • S(b);SBLOCK::R(C)+S(B),DCHECK,XR(e)
    • S(b);SBLOCK::S(D)
  • Tries
    • Try
      • Q(I);
      • Vars
        • K(n);S_FLIGHT::QAB(I)+R(F),DCHECK,XP(j)
        • Q(c);OGATE,XP(G)::QAB(I)+R(F),XQ(c)
        • Q(c);SBLOCK,XP(E)::QAB(I)+R(F),DCHECK
        • Q(c);SBLOCK::R(C)+S(B),DCHECK,XR(e)
        • Q(c);SBLOCK::QAB(I)+R(F),DCHECK
        • Q(c);SBLOCK::S(D)
        • R(d);SBLOCK::R(C)+S(B),DCHECK,XR(e)
        • S(b);SBLOCK::R(C)+S(B),DCHECK,XR(e)
        • S(b);SBLOCK::S(D)
      • Refutation
        • Q(c);
  • Actual
    • Q(I);
    • Vars
      • K(n);S_FLIGHT::QAB(I)+R(F),DCHECK,XP(j)
      • Q(c);OGATE,XP(G)::QAB(I)+R(F),XQ(c)
      • Q(c);SBLOCK,XP(E)::QAB(I)+R(F),DCHECK
      • Q(c);SBLOCK::R(C)+S(B),DCHECK,XR(e)
      • Q(c);SBLOCK::QAB(I)+R(F),DCHECK
      • Q(c);SBLOCK::QAR2(I)
      • Q(c);SBLOCK::S(D)
      • R(d);SBLOCK::R(C)+S(B),DCHECK,XR(e)
      • S(b);SBLOCK::R(C)+S(B),DCHECK,XR(e)
      • S(b);SBLOCK::S(D)
HTML5 logo

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).