MESON Chess Problem Database

Problem Display
PID: 228691 (B7/1R6/2R4p/r3pN2/r3N1pP/3p1kP1/7P/2B1bK2 w - - 0 1)

Moen, Kabe

StrateGems, 2020

B7/1R6/2R4p/r3pN2/r3N1pP/3p1kP1/7P/2B1bK2

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bf2
      • 2.Sd2#
    • 1...h5
      • 2.Sg5#
  • Tries
    • 1.Rf7?
      • threat
        • 2.Sfd6#
      • 1...Kxe4
        • 2.Rc4#
      • 1...Rxe4
        • 2.Sd4#
      • 1...Bxg3
        • 2.Sfxg3#
      • 1...Bd2
        • 2.Sxd2#
      • 1...d2
        • 2.Rc3#
      • 1...Ra7!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Sfd6#
      • 1...Kxe4
        • 2.Rb4#
      • 1...Rxe4
        • 2.Sd4#
      • 1...Bxg3
        • 2.Sfxg3#
      • 1...Bd2
        • 2.Sxd2#
      • 1...d2
        • 2.Rb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::S(E),XB(a)
    • B(a);N_GUARD::S(E)
    • P(h);N_GUARD::S(E)
  • Tries
    • Try
      • R(I);
      • Threat
        • R(I)+S(G)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(E)::B(J)+R(H),DCHECK
        • R(d);SBLOCK,XS(E)::R(I)+S(G),DCHECK
        • B(a);XP(D)::R(I)+S(G),XB(a)
        • B(a);N_GUARD::S(E),XB(a)
        • P(b);OGATEB::R(H)
      • Refutation
        • R(f);
  • Actual
    • R(H);
    • Threat
      • R(H)+S(G)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(E)::B(J)+R(I),DCHECK
      • R(d);SBLOCK,XS(E)::R(H)+S(G),DCHECK
      • B(a);XP(D)::R(H)+S(G),XB(a)
      • B(a);N_GUARD::S(E),XB(a)
      • P(b);OGATEB::R(I)
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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).