MESON Chess Problem Database

Problem Display
PID: 91929 (6B1/1p1q1NPK/5Rp1/6p1/R2Pk2p/4pn2/Q1PbN3/8 w - - 0 1)

Klebes, Stefan

Deutsche Schachblatter, 1986

6B1/1p1q1NPK/5Rp1/6p1/R2Pk2p/4pn2/Q1PbN3/8

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sd6#
    • 1...Qxa4
      • 2.Sd6#
    • 1...Qg4
      • 2.Sd6#
    • 1...Qb5
      • 2.Sd6#
    • 1...Qf5
      • 2.Sd6#
    • 1...Qc8
      • 2.Sd6#
    • 1...Qe8
      • 2.Sd6#
    • 1...Qd6
      • 2.Sxd6#
    • 1...Bc1
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Se1
      • 2.Sxg5#
    • 1...Sg1
      • 2.Sxg5#
    • 1...Sh2
      • 2.Sxg5#
    • 1...Se5
      • 2.Sxg5#
    • 1...h3
      • 2.Sg3#
    • 1...g4
      • 2.Rf4#
  • Tries
    • 1.Qe6+?
      • 1...Se5
        • 2.Sxg5#
        • 2.Qxe5#
      • 1...Qxe6!
  • Keys
    • 1.Qb1!
      • threat
        • 2.c4#
      • 1...Kd5
        • 2.c4#
      • 1...Qxa4
        • 2.Sd6#
      • 1...Qxd4
        • 2.Qxb7#
      • 1...Sxd4
        • 2.Qh1#
      • 1...Qb5
        • 2.Sd6#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Se1
        • 2.Sxg5#
      • 1...Se5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 11
  • Sets
    • Q(i);N_GUARD::S(G)
    • Q(i);N_GUARD,XR(D)::S(G)
    • Q(i);N_GUARD::S(G),XQ(i)
    • B(a);N_GUARD::S(C)
    • B(a);N_GUARD::S(C),XB(a)
    • S(c);N_GUARD::S(G),XP(f)
    • P(e);N_GUARD::S(C)
    • P(f);N_GUARD::R1(F)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • Q(i);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+P(B)
    • Vars
      • K(d);S_FLIGHT::P(B)
      • Q(i);N_GUARD,XR(D)::S(G)
      • Q(i);N_GUARD,P_SPINQ(i),XP(E)::QAB(A),XP(h)
      • S(c);OGATEB,P_SPINS(c),XP(E)::QAB(A)
      • Q(i);N_GUARD::S(G)
      • B(a);N_GUARD::S(C),XB(a)
      • S(c);N_GUARD::S(G),XP(f)
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).