MESON Chess Problem Database

Problem Display
PID: 59216 (B3Q3/2bn1R1n/2r1N2K/4P3/b1P1k3/2P3R1/6PB/8 w - - 0 1)

Ellerman, Arnoldo

3rd HM., Brisbane Courier, 1921-1922

B3Q3/2bn1R1n/2r1N2K/4P3/b1P1k3/2P3R1/6PB/8

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Re3#
      • 2.Rg4#
    • 1...Sxe5
      • 2.Rf4#
  • Tries
    • 1.Bxc6+?
      • 1...Kxe5
        • 2.Rd3#
        • 2.Re3#
        • 2.Rgf3#
        • 2.Rh3#
        • 2.Rg4#
        • 2.Rg5#
        • 2.Rg6#
        • 2.Rgg7#
        • 2.Rg8#
      • 1...Bxc6!
  • Keys
    • 1.Rff3!
      • threat
        • 2.Rg4#
      • 1...Kxe5
        • 2.Rg4#
      • 1...Bxe5
        • 2.Qg6#
      • 1...Sxe5
        • 2.Rf4#
      • 1...Sdf6
        • 2.Sc5#
      • 1...Shf6
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(e);SBLOCK,XP(F)::R1(I)
  • Tries
    • Try
      • B(J);CHECK,N_SPINS(G),XR(c)
      • Refutation
        • B(a);XB(J)
  • Actual
    • R(I);
    • Threat
      • R(D)
    • Vars
      • K(b);N_SPINR(c),P-FLIGHT,XP(F)::B(B)+R(D)
      • B(d);SBLOCK,XP(F)::QAB(K)
      • S(e);SBLOCK,XP(F)::R1(I)
      • S(e);N_PINS(G)::S(G)
      • S(f);N_PINS(G)::S(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).