MESON Chess Problem Database

Problem Display
PID: 154780 (8/B7/K3p2r/2RPp3/1p1k1p1N/1P1p1R1p/n4N2/r1b2b2 w - - 0 1)

Ellerman, Arnoldo

Good Companions (May), 1916

8/B7/K3p2r/2RPp3/1p1k1p1N/1P1p1R1p/n4N2/r1b2b2

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Rxd3#
    • 1...Sc3+
      • 2.Ra5#
    • 1...d2+
      • 2.Rb5#
    • 1...exd5+
      • 2.Rc6#
  • Keys
    • 1.Re3!
      • threat
        • 2.Re4#
      • 1...Sc3+
        • 2.Ra5#
      • 1...d2+
        • 2.Rb5#
      • 1...exd5+
        • 2.Rc6#
      • 1...Kxe3
        • 2.Rc2#
      • 1...Bxe3
        • 2.Sf3#
      • 1...fxe3
        • 2.Sf3#
      • 1...e4
        • 2.Rxe4#
      • 1...Bg2
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::R1(C),XP(e)
    • S(d);CHECK,SBLOCK::B(H)+R(E)
    • P(e);CHECK::B(H)+R(E)
    • P(k);CHECK,SBLOCK,XP(F)::B(H)+R(E)
  • Actual
    • R(C);
    • Threat
      • R1(C)
    • Vars
      • S(d);CHECK,SBLOCK::B(H)+R(E)
      • P(e);CHECK::B(H)+R(E)
      • P(k);CHECK,SBLOCK,XP(F)::B(H)+R(E)
      • K(h);S_FLIGHT,XR(C)::B(H)+R(E)
      • B(b);SBLOCK,XR(C)::S(D)
      • P(i);SBLOCK,XR(C)::S(D)
      • P(j);::R1(C),XP(j)
      • B(c);N_GUARD::R1(C),XP(e)
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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).