Problem Display
PID: 84516 (K7/2B2p2/8/3Bq3/5kpQ/4p1NP/8/3b4 w - - 0 1)

Szwedowski, Leopold Mieczyslaw

Suomen Shakki, 1992

K7/2B2p2/8/3Bq3/5kpQ/4p1NP/8/3b4

#2

6 + 6


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Qd6
      • 2.Bxd6#
    • 1...Bc2
      • 2.Qxg4#
    • 1...Bb3
      • 2.Qxg4#
    • 1...Ba4
      • 2.Qxg4#
    • 1...f5
      • 2.Sh5#
  • Tries
    • 1.Sf1?
      • threat
        • 2.Qf6#
      • 1...Bc2
        • 2.Qxg4#
      • 1...f5
        • 2.Qh6#
      • 1...f6
        • 2.Qxf6#
      • 1...Kf5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qf6#
      • 1...Kf3
        • 2.Qxg4#
      • 1...Kf5
        • 2.Qg5#
      • 1...e2
        • 2.Qf2#
      • 1...f5
        • 2.Qg3#
      • 1...f6
        • 2.Qxf6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • Q(e);OGATEB::B(E),XQ(e)
    • B(a);N_GUARD::QAR1(C),XP(d)
    • P(f);SBLOCK::S(A)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR2(C)
      • Vars
        • B(a);N_GUARD::QAR1(C),XP(d)
        • P(f);SBLOCK::QAB(C)
        • P(f);::QAR2(C),XP(f)
      • Refutation
        • K(c);N_SPINP(d),N_SPINQ(e),P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR2(C)
    • Vars
      • K(c);N_SPINP(d),N_SPINQ(e),P-FLIGHT::QAB1(C),XP(d)
      • K(c);N_SPINP(d),N_SPINQ(e),P-FLIGHT::QAR1(C)
      • P(b);N_GUARD,S_CUTB(a)::QAR2(C)
      • P(f);SBLOCK::QAB1(C)
      • P(f);::QAR2(C),XP(f)


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).