MESON Chess Problem Database

Problem Display
PID: 109436 (8/1n1p2p1/1Q4R1/p2Nk2n/2P3P1/5P2/5K2/2b5 w - - 0 1)

Strebkovs, Andrejs

Vratnica-64, 2002

8/1n1p2p1/1Q4R1/p2Nk2n/2P3P1/5P2/5K2/2b5

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Rg5#
      • 2.Qe3#
      • 2.Qxb2#
    • 1...Ba3
      • 2.Rg5#
      • 2.Qe3#
    • 1...Be3+
      • 2.Qxe3#
    • 1...Bf4
      • 2.Qb2#
    • 1...Bg5
      • 2.Rxg5#
      • 2.Qb2#
    • 1...Bh6
      • 2.Qb2#
    • 1...Sf4
      • 2.Rg5#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Sd3#
      • 1...Be3+
        • 2.Qxe3#
      • 1...Kf4
        • 2.Sd3#
        • 2.Qd4#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sf4
        • 2.Rg5#
      • 1...axb4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3#
      • 1...Be3+
        • 2.Qxe3#
      • 1...Kxf4
        • 2.Qd4#
      • 1...Bxf4
        • 2.Qb2#
      • 1...Sxf4
        • 2.Rg5#
      • 1...Sc5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(a);CHECK,N_GUARD::QAR2(F),XB(a)
    • B(a);N_GUARD::QAB(F)
    • S(d);S_CUTB(a)::R(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(a);CHECK,N_GUARD::QAR2(F),XB(a)
        • S(e);N_GUARD::QAB1(F)
        • S(d);SBLOCK,S_CUTB(a)::R(G)
      • Refutation
        • P(b);XS(E)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • B(a);CHECK,N_GUARD::QAR2(F),XB(a)
      • K(c);S_FLIGHT,XS(E)::QAR2(F)
      • B(a);N_GUARD,SBLOCK,XS(E)::QAB(F)
      • S(d);SBLOCK,XS(E)::R(G)
      • S(e);N_GUARD::QAB1(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).