MESON Chess Problem Database

Problem Display
PID: 242404 (3r4/b1N2R2/8/1pP3n1/n2k1P2/B4pN1/2R2P2/2K2B2 w - - 0 1)

Grinblat, Arieh

Variantim, 2015

3r4/b1N2R2/8/1pP3n1/n2k1P2/B4pN1/2R2P2/2K2B2

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxb5#
    • 1...Rd7
      • 2.Rxd7#
    • 1...Ra8
      • 2.Rd7#
    • 1...Rb8
      • 2.Rd7#
    • 1...Rc8
      • 2.Rd7#
    • 1...Re8
      • 2.Rd7#
    • 1...Rf8
      • 2.Rd7#
    • 1...Rg8
      • 2.Rd7#
    • 1...Rh8
      • 2.Rd7#
    • 1...Sb2
      • 2.Bxb2#
    • 1...Sc3
      • 2.Rd2#
    • 1...Sxc5
      • 2.Bb2#
    • 1...Sb6
      • 2.Bb2#
    • 1...Se4
      • 2.Sf5#
    • 1...b4
      • 2.Rc4#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Rd2#
      • 1...Sxc5
        • 2.Bc3#
      • 1...Se4
        • 2.Sf5#
      • 1...Sb2!
    • 1.Re7?
      • threat
        • 2.Sf5#
      • 1...Rd5
        • 2.Sxb5#
      • 1...Rf8
        • 2.Rd7#
      • 1...Se6!
  • Keys
    • 1.Rf5!
      • threat
        • 2.Sxb5#
      • 1...Rb8
        • 2.Rd5#
      • 1...Sc3
        • 2.Rd2#
      • 1...b4
        • 2.Sb5#
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 13
  • Sets
    • R(g);SBLOCK::S(I),XP(d)
    • R(g);N_GUARD::R(J),XR(g)
    • R(g);N_GUARD::R(J)
    • S(b);N_GUARD::B(E),XS(b)
    • S(b);SBLOCK::R(C)
    • S(b);N_GUARD,XP(H)::B(E)
    • S(b);N_GUARD::B(E)
    • S(e);SBLOCK::S(F)
    • P(d);N_GUARD::R1(C)
  • Tries
    • Try
      • B(E);
      • Threat
        • R(C)
      • Vars
        • S(b);N_GUARD,SBLOCK,XP(H)::B(E)
        • S(e);SBLOCK::S(F)
      • Refutation
        • S(b);
    • Try
      • R(J);
      • Threat
        • S(F)
      • Vars
        • R(g);SBLOCK::S(I),XP(d)
        • R(g);N_GUARD::R(J)
      • Refutation
        • S(e);
  • Actual
    • R(J);
    • Threat
      • S(I),XP(d)
    • Vars
      • R(g);N_GUARD::R1(J)
      • S(b);SBLOCK::R(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).