MESON Chess Problem Database

Problem Display
PID: 274600 (8/3p3B/3Pp1RB/3P1k1n/3R1p1r/2K4p/1QP4b/8 w - - 0 1)

Tokar, Ivan Vasilovich

Mat, 1973

8/3p3B/3Pp1RB/3P1k1n/3R1p1r/2K4p/1QP4b/8

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Rg5#
    • 1...f3
      • 2.Rxe6#
  • Keys
    • 1.Qb5!
      • threat
        • 2.dxe6#
      • 1...Ke5
        • 2.dxe6#
      • 1...exd5
        • 2.Qxd5#
      • 1...Sf6
        • 2.Rg5#
      • 1...f3
        • 2.Rxe6#
      • 1...e5
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK::B(I)+R(G),DCHECK
    • P(c);::B(I)+R(G),XP(g)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+P(E),XP(g)
    • Vars
      • K(e);P-FLIGHT::QAR(A)+P(E),XP(g)
      • P(g);OGATE,P_SPINP(g),XP(E)::QAR2(A),XP(g)
      • S(f);SBLOCK::B(I)+R(G),DCHECK
      • P(c);::B(I)+R(G),XP(g)
      • P(g);OGATEB,SBLOCK::QAB(A),XP(h)
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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).