MESON Chess Problem Database

Problem Display
PID: 241618 (2b2K2/4N3/5kp1/2N1b1p1/6r1/p3n3/Bn2pP2/B1Q2R2 w - - 0 1)

Ellerman, Arnoldo

Magyar Sakkvilag, 1935

2b2K2/4N3/5kp1/2N1b1p1/6r1/p3n3/Bn2pP2/B1Q2R2

#2

8 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Se4#
    • 1...Rg2
      • 2.Se4#
    • 1...Rg3
      • 2.Se4#
    • 1...Re4
      • 2.Sxe4#
    • 1...Bf5
      • 2.Sg8#
    • 1...Ba6
      • 2.Sd7#
    • 1...Bb7
      • 2.Sd7#
    • 1...Bd7
      • 2.Sxd7#
    • 1...Sf5
      • 2.Sd5#
      • 2.Sg8#
  • Keys
    • 1.f4!
      • threat
        • 2.Se4#
      • 1...Bxf4
        • 2.Qc3#
      • 1...Bf5
        • 2.Sg8#
      • 1...Bb7
        • 2.Sd7#
      • 1...Sbc4
        • 2.fxe5#
      • 1...Sec4
        • 2.fxg5#
      • 1...Sd5
        • 2.fxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::S(F)
    • R(e);N_GUARD::S(F),XR(e)
    • B(j);SBLOCK::S(G)
    • B(j);N_GUARD::S(F)
    • B(j);N_GUARD::S(F),XB(j)
  • Actual
    • P(E);
    • Threat
      • S(F)
    • Vars
      • B(f);OGATEB,P_SPINB(f),P_SPINS(a),XP(E)::QAB(B)
      • B(j);SBLOCK::S(G)
      • B(j);N_GUARD::S(F)
      • S(a);P_SPINB(f)::R(C)+P(E)DCHECK,XB(f)
      • S(d);::R(C)+P(E)DCHECK,XP(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).