MESON Chess Problem Database

Problem Display
PID: 119943 (n6Q/8/3p3p/2kN4/2bNr2p/8/1P4B1/6BK w - - 0 1)

Feigl, Maximilian

Deutsche Schachzeitung, 1898

n6Q/8/3p3p/2kN4/2bNr2p/8/1P4B1/6BK

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.b4#
    • 1...Re2
      • 2.b4#
    • 1...Re3
      • 2.b4#
    • 1...Rf4
      • 2.b4#
    • 1...Rg4
      • 2.b4#
    • 1...Re5
      • 2.b4#
    • 1...Re6
      • 2.b4#
    • 1...Re7
      • 2.b4#
    • 1...Re8
      • 2.b4#
  • Tries
    • 1.Qc8+?
      • 1...Kxd5
        • 2.Qf5#
      • 1...Sc7!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qc6#
      • 1...Kxd5
        • 2.Qh5#
      • 1...Rxd4
        • 2.b4#
      • 1...Rxe8
        • 2.b4#
      • 1...Bxd5
        • 2.Qb5#
      • 1...Bb5
        • 2.Qxb5#
      • 1...Re3
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(b);P_PINB(A)::P(C)
    • R(b);::P(C)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(d);OGATEB,P-FLIGHT,P_SPINR(b),XS(F)::QAR2(G)
      • Refutation
        • S(g);P_SPINS(g)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINR(b),XS(F)::QAR(G)
      • R(b);P_SPINR(b),XS(E)::P(C)
      • R(b);XQ(G)::P(C)
      • B(a);N_GUARD,SBLOCK,XS(F)::QAR1(G)
      • B(a);N_GUARD::QAR1(G),XB(a)
      • R(b);::S(E)
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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).