MESON Chess Problem Database

Problem Display
PID: 44080 (4N3/2PPP3/R2K3k/2ppp1Rp/6pP/2r3Q1/4b3/bBnr4 w - - 0 1)

Ellerman, Arnoldo

1st Prize, Het Schaakleven, 1931

4N3/2PPP3/R2K3k/2ppp1Rp/6pP/2r3Q1/4b3/bBnr4

#2

10 + 11

371 The Chess Review 1933
56 The Problemist 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3
      • 2.Kxe5#
    • 1...c4
      • 2.Kc5#
      • 2.Kxe5#
  • Keys
    • 1.Rg7!
      • threat
        • 2.Rh7#
      • 1...Rdd3
        • 2.Kxe5#
      • 1...Rc2
        • 2.Qe3#
      • 1...Rcd3
        • 2.Kxc5#
      • 1...Bd3
        • 2.Qe3#
      • 1...Sd3
        • 2.Kxd5#
      • 1...e4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(d);N_GUARD::R(E)+K(F),XP(i)
  • Actual
    • R(D);
    • Threat
      • R1(D)
    • Vars
      • R(c);S_CUTB(d)::R(E)+K(F),XP(i)
      • R(e);N_GUARD::QAB(B)
      • R(e);::R(E)+K(F),XP(g)
      • B(d);S_CUTR(e)::QAB(B)
      • S(b);::R(E)+K(F),XP(h)
      • P(i);N_GUARD::QAB(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).