MESON Chess Problem Database

Problem Display
PID: 45062 (8/1N2r3/2b3n1/1p1p2Q1/pP1k2n1/2NP4/3KB3/8 w - - 0 1)

Jankevics, Karlis

Problem Paradise, 2000

8/1N2r3/2b3n1/1p1p2Q1/pP1k2n1/2NP4/3KB3/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2+
      • 2.Sxe2#
    • 1...Bxb7
      • 2.Sxb5#
    • 1...Bd7
      • 2.Qxd5#
    • 1...Be8
      • 2.Qxd5#
    • 1...S4e5
      • 2.Qe3#
      • 2.Qg1#
    • 1...S6e5
      • 2.Qf4#
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sxc6#
      • 1...Rxe2+
        • 2.Sxe2#
      • 1...Re6
        • 2.Sxe6#
      • 1...Rc7
        • 2.Se6#
      • 1...Bb7
        • 2.Sxb5#
      • 1...Bd7
        • 2.Qxd5#
      • 1...Ba8
        • 2.Sxb5#
      • 1...Be8
        • 2.Qxd5#
      • 1...S4e5
        • 2.Qe3#
        • 2.Qg1#
      • 1...S6e5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(h);CHECK,XB(B)::S(C),XR(h)
    • B(f);N_GUARD,XS(G)::S(C),XP(d)
    • B(f);N_GUARD::QAR1(F),XP(e)
    • S(g);N_GUARD,S_CUTR(h)::QAR2(F)
  • Actual
    • S(G);
    • Threat
      • S(G),XB(f)
    • Vars
      • R(h);CHECK,XB(B)::S(C),XR(h)
      • R(h);N_GUARD::S(G),XR(h)
      • R(h);N_GUARD::S(G)
      • B(f);N_GUARD::S(C),XP(d)
      • B(f);N_GUARD::QAR1(F),XP(e)
      • S(g);N_GUARD,S_CUTR(h)::QAR2(F)
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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).