Problem Display
PID: 198589 (4n3/3p1Q2/r2pN1K1/4kP2/rRb2Np1/p5B1/3P4/8 w - - 0 1)

Zalewski, Mieczyzlaw

Die Schwalbe, 1974

4n3/3p1Q2/r2pN1K1/4kP2/rRb2Np1/p5B1/3P4/8

#2

8 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...Bd5
      • 2.Se2#
      • 2.Sg2#
      • 2.Sd3#
      • 2.Sh3#
      • 2.Sh5#
  • Tries
    • 1.Qf6+?
      • 1...Ke4
        • 2.Sg5#
      • 1...Sxf6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Se2#
      • 1...Bxf7+
        • 2.Sxf7#
      • 1...d5+
        • 2.Sfe6#
      • 1...Kd4
        • 2.Qd5#
      • 1...Be2
        • 2.Sxe2#
        • 2.Sg2#
        • 2.Sd3#
        • 2.Sfh3#
        • 2.Sd5#
        • 2.Sh5#
        • 2.Qd5#
        • 2.Qxe8#
        • 2.Qe7#
        • 2.d4#
      • 1...Be6
        • 2.d4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINB(c)::S(F)
      • Refutation
        • S(i);XQ(H)
  • Actual
    • S(F);
    • Threat
      • B(B)+S(D)
    • Vars
      • B(c);CHECK,XQ(H)::S(F),XB(c)
      • P(g);CHECK,SBLOCK::B(B)+S(D)
      • K(e);P_SPINB(c),S_FLIGHT::QAR1(H)
      • B(c);::P(A)


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).