MESON Chess Problem Database

Problem Display
PID: 83514 (2r2rq1/R2nQ3/B2B2b1/3p4/4p3/2p5/2K4p/k1N3b1 w - - 0 1)

Ellerman, Arnoldo

Good Companions, 1919

2r2rq1/R2nQ3/B2B2b1/3p4/4p3/2p5/2K4p/k1N3b1

#2

6 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Bb5#
    • 1...Rf2+
      • 2.Be2#
    • 1...e3+
      • 2.Bd3#
    • 1...d4
      • 2.Bc4#
  • Keys
    • 1.Be5!
      • threat
        • 2.Qa3#
      • 1...Rf2+
        • 2.Be2#
      • 1...e3+
        • 2.Bd3#
      • 1...Bc5
        • 2.Bxc3#
      • 1...Rc5
        • 2.Bb5#
      • 1...Sc5
        • 2.Bxc3#
      • 1...d4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(i);S_CUTB(b)::R(E)+B(C)
    • R(j);CHECK,S_CUTB(b)::R(E)+B(C)
    • P(e);CHECK,S_CUTB(b)::R(E)+B(C)
    • P(f);S_CUTB(b)::R(E)+B(C)
  • Actual
    • B(D);P_PINP(d)
    • Threat
      • QAR2(F)
    • Vars
      • R(j);CHECK,S_CUTB(b)::R(E)+B(C)
      • P(e);CHECK,S_CUTB(b)::R(E)+B(C)
      • B(b);S_CUTR(i)::B(D),XP(d)
      • R(i);S_CUTB(b)::R(E)+B(C)
      • S(h);S_CUTR(i)::B(D),XP(d)
      • P(f);N_SPINP(d),S_CUTB(b)::R(E)+B(C)
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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).