MESON Chess Problem Database

Problem Display
PID: 208230 (3Bb3/p4p1n/P2RpN1Q/2kBPp2/P3p3/2P5/KNn5/3R4 w - - 0 1)

Kohring, Rolf

Badische Neueste Nachrichten, 1986

3Bb3/p4p1n/P2RpN1Q/2kBPp2/P3p3/2P5/KNn5/3R4

#2

12 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Rxc6#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Sa1
      • 2.Qe3#
    • 1...Se1
      • 2.Qe3#
    • 1...Sa3
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...e3
      • 2.Sd3#
    • 1...f4
      • 2.Sxe4#
    • 1...exd5
      • 2.R1xd5#
  • Tries
    • 1.Qe3+?
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sxe3!
  • Keys
    • 1.Rb6!
      • 1...Sb4+
        • 2.cxb4#
      • 1...Bxa4
        • 2.Sxa4#
      • 1...Sxf6
        • 2.Qf8#
      • 1...exd5
        • 2.Rxd5#
      • 1...axb6
        • 2.Be7#
      • 1...Bb5
        • 2.Rxb5#
      • 1...Bc6
        • 2.Rxc6#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Sa1
        • 2.Qe3#
      • 1...Se1
        • 2.Qe3#
      • 1...Sa3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sd4
        • 2.cxd4#
      • 1...Sg5
        • 2.Qf8#
      • 1...Sf8
        • 2.Qxf8#
      • 1...e3
        • 2.Sd3#
      • 1...f4
        • 2.Sxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(i);N_GUARD::R1(I),XB(i)
    • B(i);N_GUARD::S(J),XB(i)
    • S(a);N_GUARD::QAB(K)
    • S(a);N_GUARD::QAB(K),XS(a)
    • P(b);N_GUARD::S(C)
    • P(d);N_GUARD::S(J),XP(b)
    • P(e);OGATE,XB(F)::R1(A),XP(e)
  • Tries
    • Try
      • Q(K);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(K),XS(a)
      • Refutation
        • S(a);XQ(K)
  • Actual
    • R(I);
    • Vars
      • S(a);CHECK,OGATE::P(D),XS(a)
      • B(i);XP(E)::S(C),XB(i)
      • S(h);N_GUARD,XS(J)::QAB(K)
      • P(e);OGATE,XB(F)::R1(A),XP(e)
      • P(f);SBLOCK,XR(I)::B(L)
      • B(i);N_GUARD::R1(I),XB(i)
      • B(i);N_GUARD::S(J),XB(i)
      • S(a);N_GUARD::QAB(K)
      • S(a);N_GUARD::QAB(K),XS(a)
      • S(a);OGATE::P(D),XS(a)
      • S(h);N_GUARD::QAB(K)
      • S(h);N_GUARD::QAB(K),XS(h)
      • P(b);N_GUARD::S(C)
      • P(d);N_GUARD::S(J),XP(b)
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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).