MESON Chess Problem Database

Problem Display
PID: 181793 (1B1q1n1Q/8/3N1P2/4kB2/2P4R/p2r2p1/3P2b1/K7 w - - 0 1)

Feigl, Maximilian

Armeeblatt, 1905

1B1q1n1Q/8/3N1P2/4kB2/2P4R/p2r2p1/3P2b1/K7

#2

9 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.f7#
    • 1...Qb6
      • 2.f7#
    • 1...Qe7
      • 2.fxe7#
    • 1...Qd7
      • 2.f7#
    • 1...Qc8
      • 2.f7#
    • 1...Qe8
      • 2.f7#
    • 1...Rb3
      • 2.d4#
    • 1...Rc3
      • 2.d4#
    • 1...Re3
      • 2.d4#
    • 1...Rf3
      • 2.Re4#
      • 2.d4#
    • 1...Bf1
      • 2.Re4#
    • 1...Bh3
      • 2.Re4#
    • 1...Be4
      • 2.Rxe4#
  • Keys
    • 1.Bh3!
      • threat
        • 2.Sf7#
      • 1...Qxd6
        • 2.f7#
      • 1...Rxd6
        • 2.d4#
      • 1...Bxh3
        • 2.Re4#
      • 1...Be4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(f);N_GUARD::QAB(I)+P(G)
    • Q(f);OGATE::QAB(I)+P(G),XQ(f)
    • R(c);OGATE::P(B)
    • B(a);N_GUARD::R1(D)
    • B(a);N_GUARD::R1(D),XB(a)
  • Actual
    • B(E);
    • Threat
      • B(H)+S(F),DCHECK
    • Vars
      • Q(f);N_GUARD,P_SPINQ(f),XS(F)::QAB(I)+P(G)
      • R(c);OGATE,P_SPINR(c),XS(F)::P(B)
      • B(a);N_GUARD,XB(E)::R1(D)
      • B(a);N_GUARD::R1(D),XB(a)
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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).