MESON Chess Problem Database

Problem Display
PID: 109779 (1K3B2/1p6/pp5p/1k1NR1r1/bP1p4/P1p2Q2/P5B1/2n5 w - - 0 1)

Zavodny, Zdenek

Sinfonie Scacchistiche, 1970

1K3B2/1p6/pp5p/1k1NR1r1/bP1p4/P1p2Q2/P5B1/2n5

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Sxb6#
    • 1...Kc6
      • 2.Sf6#
    • 1...Rxg2
      • 2.Se3#
    • 1...Rg3
      • 2.Se3#
    • 1...Rg4
      • 2.Se3#
    • 1...Rg6
      • 2.Se3#
    • 1...Rg7
      • 2.Se3#
    • 1...Rg8
      • 2.Se3#
  • Tries
    • 1.Sf4+?
      • 1...Kc4
        • 2.Qd5#
      • 1...Rxe5!
    • 1.Sxb6+?
      • 1...Kxb6
        • 2.Qxb7#
      • 1...Rxe5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Sxc3#
        • 2.Sc7#
      • 1...Kc4
        • 2.Sf4#
      • 1...Kc6
        • 2.Qe8#
      • 1...Rxg2
        • 2.Se7#
      • 1...Rxe5
        • 2.Sc7#
      • 1...Bd1
        • 2.Sxc3#
      • 1...Bc2
        • 2.Sxc3#
      • 1...Bb3
        • 2.Sxc3#
      • 1...a5
        • 2.Sc7#
      • 1...c2
        • 2.Sc3#
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • K(e);S_FLIGHT::S(F),XP(h)
    • K(e);S_FLIGHT::QAB(D)+S(F)
    • R(f);N_GUARD,XB(B)::R(G)+S(F)
    • R(f);N_GUARD::R(G)+S(F)
    • R(f);N_GUARD,P_PINB(I)::R(G)+S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(e);S_FLIGHT::QAB1(D)
      • Refutation
        • R(f);XR(G)
    • Try
      • S(F);CHECK,XP(h)
      • Vars
        • K(e);P-FLIGHT,XS(F)::QAR1(D),XP(j)
      • Refutation
        • R(f);XR(G)
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);S_FLIGHT::QAB(D)+S(F)
      • K(e);S_FLIGHT::QAB(D)
      • R(f);N_GUARD,XB(B)::R(G)+S(F)
      • R(f);XR(G)::S(F)
      • B(c);::R(G)+S(F),DCHECK,XP(b)
      • P(g);::R(G)+S(F),DCHECK
HTML5 logo

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).