MESON Chess Problem Database

Problem Display
PID: 66918 (b2K4/p3Pp2/Q2P1p2/2Bk4/3NNP2/p1n5/1PP1R3/4b3 w - - 0 1)

Degener, Udo

Degenkolbe, Mirko

3rd Prize, Probleemblad, 1992

b2K4/p3Pp2/Q2P1p2/2Bk4/3NNP2/p1n5/1PP1R3/4b3

#2

11 + 8

5416 FIDE Album (1992-1994) (Annexe) 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.c4#
    • 1...Sd1
      • 2.c4#
    • 1...Sa2
      • 2.c4#
    • 1...Sa4
      • 2.c4#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Sxf6#
        • 2.Qb3#
      • 1...Sxe2
        • 2.Sxf6#
      • 1...Sxe4
        • 2.c4#
      • 1...Bh4
        • 2.Sxc3#
        • 2.Qb3#
      • 1...f5
        • 2.Sf6#
        • 2.Qb3#
      • 1...Sxb5!
    • 1.Qb7+?
      • 1...Kc4
        • 2.Qb3#
        • 2.b3#
      • 1...Bxb7!
    • 1.Qc6+?
      • 1...Kc4
        • 2.b3#
      • 1...Bxc6!
    • 1.b3?
      • threat
        • 2.Qc4#
      • 1...Sb5
        • 2.c4#
      • 1...Sxe2!
    • 1.b4?
      • threat
        • 2.Sxf6#
      • 1...Sxe4
        • 2.c4#
      • 1...Bh4
        • 2.Sxc3#
      • 1...f5
        • 2.Sf6#
      • 1...Sb5!
    • 1.e8Q?
      • threat
        • 2.Qxf7#
      • 1...Sxe2
        • 2.c4#
      • 1...Sxe4!
  • Keys
    • 1.Bxa7!
      • threat
        • 2.Sxf6#
      • 1...Sxe4
        • 2.c4#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Bh4
        • 2.Sxc3#
      • 1...Bc6
        • 2.Qxc6#
      • 1...f5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • S(c);OGATE::P(B)
  • Tries
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XR(C)::S(E),XP(e)
        • S(c);OGATE,XS(E)::P(B)
      • Refutation
        • S(c);XQ(H)
    • Try
      • Q(H);CHECK
      • Refutation
        • B(h);XQ(H)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);S_FLIGHT::P(A)
      • Refutation
        • B(h);XQ(H)
    • Try
      • P(A);
      • Threat
        • QAB1(H)
      • Vars
        • S(c);OGATE::P(B)
      • Refutation
        • S(c);XR(C)
    • Try
      • P(A);
      • Threat
        • S(E),XP(e)
      • Vars
        • S(c);OGATE,XS(E)::P(B)
        • B(a);N_GUARD::S(E),XS(c)
        • P(e);::S(E)
      • Refutation
        • S(c);
    • Try
      • P(J);
      • Threat
        • QAB(J),XP(g)
      • Vars
        • S(c);OGATE,XR(C)::P(B)
      • Refutation
        • S(c);XS(E)
  • Actual
    • B(G);XP(f)
    • Threat
      • S(E),XP(e)
    • Vars
      • S(c);OGATE,XS(E)::P(B)
      • S(c);N_GUARD::QAR2(H),XS(c)
      • B(a);N_GUARD::S(E),XS(c)
      • B(h);N_GUARD::QAB1(H),XB(h)
      • P(e);::S(E)
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).