MESON Chess Problem Database

Problem Display
PID: 219889 (4b3/2p1K3/8/1N2k1p1/1p4P1/1rb1P2N/2R5/2B4B w - - 0 1)

Nemmer, Max F

von Dehn, Bodo

Land og Folk, 0000

4b3/2p1K3/8/1N2k1p1/1p4P1/1rb1P2N/2R5/2B4B

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Rc5#
    • 1...Be1
      • 2.Rc5#
    • 1...Bb2
      • 2.Rc5#
    • 1...Bd2
      • 2.Rc5#
    • 1...Bd4
      • 2.exd4#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Sc4#
      • 1...Bb5
        • 2.Sf7#
      • 1...Bf7
        • 2.Sxf7#
      • 1...cxd6!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3#
      • 1...Bxb5
        • 2.Sg6#
      • 1...gxf4
        • 2.exf4#
      • 1...Ba1
        • 2.Rc5#
      • 1...Be1
        • 2.Rc5#
      • 1...Bb2
        • 2.Rc5#
      • 1...Bd2
        • 2.Rc5#
      • 1...Bd4
        • 2.exd4#
      • 1...Bg6
        • 2.Sxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::R(C)
    • B(b);OGATE::P(D),XB(b)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(g);N_GUARD::S(G)
        • B(g);N_GUARD::S(G),XB(g)
      • Refutation
        • P(f);XS(G)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • B(g);N_GUARD,XS(G)::S(E)
      • P(e);OGATE,XS(E)::P(D),XP(e)
      • B(b);OGATE::R(C)
      • B(b);OGATE::P(D),XB(b)
      • B(g);N_GUARD::S(E),XB(g)
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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).