MESON Chess Problem Database

Problem Display
PID: 134287 (1bQ4n/p2p4/3k1Kp1/p1pp1p2/4B2r/4N1r1/b7/3R4 w - - 0 1)

Kovacevic, Marjan

1st Prize, Belgrade Internet Ty., 2008

1bQ4n/p2p4/3k1Kp1/p1pp1p2/4B2r/4N1r1/b7/3R4

#2

5 + 13

56 The Problemist 2009
56 The Problemist 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Sc4#
      • 2.Rxd5#
    • 1...Bc4
      • 2.Sxc4#
    • 1...c4
      • 2.Rxd5#
    • 1...d4
      • 2.Qxb8#
    • 1...g5
      • 2.Sxf5#
  • Tries
    • 1.Sxd5?
      • threat
        • 2.Qa6#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Rb3
        • 2.Sc3#
      • 1...c4
        • 2.Se3#
      • 1...a6
        • 2.Qxa6#
      • 1...Bc4!
    • 1.Bxf5?
      • threat
        • 2.Qxd7#
      • 1...gxf5
        • 2.Sxf5#
      • 1...c4
        • 2.Rxd5#
      • 1...Rh7!
  • Keys
    • 1.Bxd5!
      • threat
        • 2.Qxb8#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...Rb4
        • 2.Bc4#
      • 1...Bc7
        • 2.Qf8#
      • 1...c4
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::S(B),XB(a)
    • P(e);S_CUTB(a)::R1(A),XP(f)
    • P(f);::QAB(E),XB(l)
    • P(i);N_GUARD::S(B),XP(g)
  • Tries
    • Try
      • S(B);XP(f)
      • Threat
        • QAR(E)
      • Vars
        • B(a);OGATE,P_SPINB(a),XS(B)::R1(A),XB(a)
        • B(l);N_GUARD::QAB1(E),XB(l)
        • R(b);N_GUARD,S_CUTB(a)::R(A)+S(B)
        • P(e);S_CUTB(a)::R(A)+S(B)
        • P(j);::QAR(E),XP(j)
      • Refutation
        • B(a);
    • Try
      • B(C);XP(g)
      • Threat
        • QAR1(E),XP(k)
      • Vars
        • P(i);XB(C)::S(B),XP(i)
        • P(e);S_CUTB(a)::R1(A),XP(f)
      • Refutation
        • R(c);
  • Actual
    • B(C);XP(f)
    • Threat
      • QAB(E),XB(l)
    • Vars
      • B(a);OGATE,P_SPINB(a),XB(C)::R1(A),XB(a)
      • R(c);N_GUARD::R(A)+B(C)
      • B(l);SBLOCK::QAB(E)
      • P(e);S_CUTB(a)::R(A)+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).